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Hello I have a problem regarding golf 5 gti 2006. It is a little oil in the water. I have opened the lid they have cleaned have a mild flake but still dries a little oil. It has a cooling oil cooler with which this yoke is not genuine is japan. What can happen?
The Flat Rate Mechanic I have some type of oil in my radiator. When I bleed my radiator it came out looking like coffee with creamer. How do I find the cause of this. Especially when it leaked onto my timing belt
I have a 2008 vw jetta 2.5L and i have type substance in my coolant. I have ordered transmission cooler for the car I was going to change the cooler and flush all of the coolant out of my car and add more transmission fluid to the car. I have stopped driving the car because it stalls when Switching gears in automatic but it changes gears in a manual just fine. Do you think this will solve my problem?
I would assume that the reservoir had to be changed, with the oil in, it has a sensor... Also thermostat, temp coolant sensor, fan switch, gets all affected... What do you think...
The one thing you did not check was human error, very common nowadays that none mechanical people place oil in modern car in any hole they can find and coolant in the closest hole possible. Always keeping mechanics in work.
Yeah it's awesome when they mistake the transmission fluid dipstick for the oil dipstick and dump 30 weight into your transmission. $5,000 later and it's almost impossible to prove positive who put the oil in the wrong hole. People are so stupid they cost you a lot of money and headaches
Another quick way is to leave the oil cooler mounted to the engine and remove the water hoses and crank the engine up and see if oil comes out of the water ports, it might only leak with the engine hot
Figured it was the oil cooler because the sludge matched the motor dipstick. Same thing on mine. The only other thing though is depending on the vehicle it may be a water pump?
good day .I have a similar problem you had with the Volkswagen .I have a honda 1,8 exi 2006 model with what you have explained.THE CAR DONT SEEMS TO HAVE A OIL COOLER.Can you assist please.THANKS
@@project370z it was not the head gasket, the second oil cooler ( new bytheway) was broken inside too.....this is whats happen when we dont buy original parts....yeah, 50 dollars new oil cooler...flush up the cooling system, mount original oil cooler ( 200 usd), now all is clean
@@alicutz79 I am having problem in VW Touran, oil mixing in coolant although no sign in sensors and no overheating issues. So need to change oil cooler?
@@bravewarrior33 i have changed 3 oilcoolers, untill i bought original parts.If you buy, buy original oilcooler, is arround 250 euro but it will do the job.All Volkswagen have this issue sooner or later, unfortunately, if you dont change that oilcooler soon, the heater will block inside and you will no longer have heat inside in the winter
I had the oil cooler and transmission oil cooler replaced and it was flushed 5 times and it seemed clean enough. Now I have oil in the cooler again and I really can't tell if it's from before or new(still leaking into coolant from another place). Really at my wits end.
@@robbylebotha any update bud, I also replaced both engine oil cooler and transmission oil cooler and the coolant is still mixing with oil and I'm not sure if it's old or new
Great video. It's made me learn something new about my A3. Since owning the car, I have done a few long trips like 3 to 4 hours in the car. But no over heating. I don't have obvious signs like Mayo on the oil cap, think it's a head gasket. But I got a head gasket tester. The results were - yellow means it's a headgasket Blue means nothing wrong with it And green means possible headgasket or possible contamination. My A3 got GREEN. I don't have oil in the coolant tank like this car does, but is it worth changing the filter and flushing the system, then putting new coolant in? Hope to hear from your reply soon. Thank you.
Very very likely if you have the same type of cooler like the video, it's the cooler. I'm now on my third one at 200k especially if the coolant is just murky and rusty looking.
I have a 2006 Audi A4 cabrio and I just had the same thing happen to me tonight. Is this a common problem with VAG (VW, Audi, lambo, now that they cross parts on engines) autos? Great video! I'm going to flush my system tomorrow and trace coolant lines!!
Hey....I've got a Bora 1.6 and having a problem with the transmission oil mixing with the coolant...the video is helpful..but am wondering if their would be any water in the transmission... how do I go about solving this problem..the previous owner of the vehicle had it parked down for some time......
Helow man thanks for sharing this info, I have a question, i have a seat corduba 2009 and i sow some oil in the water tank sow i go to the automatic transmission oil coolar to now if is mixing oil and water but how can i now if it s the problem?
Hi, I am not sure if I have a blown head Gasket or not and whether to use a head gasket Sealer. Basically I have oil deposits in my coolant tank, oil has leaked into my coolant resovoir and and a layer of around 2-3mm builds up and sits on top of the coolant. My car is a Peugeot 207 1.4 Petrol 2011 model with manual gearbox. I have been driving it fine for nearly 3 years with this issue and have done approximately 12000 miles since I first noticed this. When I take into into the garage they seem to think it is a blown head gasket. There is also a small oil leak on the cylinder head on the left hand corner.
Hi, I have a 2001 Honda Civic 1.7 vtec. Temp gauge was reading normal but blowing cold air then temp gauge rose very rapidly. Was not far from home. I bought a thermostat figuring that was bad. Anyways, black oil junk in coolant resivor. Oil on dip stick very black even though just changed recently. Not sure what to do.
I have a golden trailblazer . The oil was super low so I refilled it and found out the coolant was low as well but I couldn’t open it up becuase it was presurized , after I let it cook I filled coolant and now the van is leaking this Grayish sludge mixture , it leaked while the van was off but I drove without the engine temp over heating , it stayed way below the half way mark, but now when I parked the van more of that Greyish sludge comes out , what do you think could be wrong ?
Good question coz 1 fuel trim premiter is on the thermostate sensor , if its caked in oil the engine may run rich as it gets inaccurate reading on coolant temp
I have oil in my radiator reservoir I do have a code P 1157 I don’t know why I have oil in my coolant. I change my radiator. I cleaned my coolant reservoir and it still has oil in it. Do you happen to know what it could be. This is a 2003 Honda accord LX 2.4 for doors.
I noticed in my 2008 F250 6.4 Diesel a Butterscotch creamy substance in my Degas bottle. So, I flushed system out about a month ago. But, now I'm having a hard time moving shift arm into gear and transmission not smooth. So, I checked degas bottle and transmission stick. Dang if it the creamy stuff wasn't in both places. An area mechanic said I probably need to flush again plus get transmission flushed then replace my radiator. What do you think???
What about on a ford f150 change the oil cooler twice and gasket over heats still have that problem had the engine rebuilt by certified mechanic please help thanks
Hey! Thank you for your information.. Let me give you the run down.. 01 4Runner 6 cylinder... Transmission cooler is built into the radiator.. Took my truck to Toyota dealership 3 days ago.. Diagnosis was tranny fluid and coolant had mixed together.. They replaced my radiator with a new one.. Flushed tranny twice.. Paid and drove off the lot and got home to check my coolant reservoir. Mud milkshake!!!!!! Returned to dealership very upset.. WHile driving back tranny was shifting hard. Almost slipping a few times.. No overheating from what I can tell on gauges. Being that they replaced radiator, flushed tranny and told me all was well I trusted it was fixed.. Obviously not. Can you advise me on what to do or to be aware of at this point???? Thank you sir..
Well unfortunately once coolant contaminants transmission there is a high probability that they'll be permanent damage caused to the transmission. Flushing it out several times is your best bet In hope that it will save it. It's really all you can do. And as for the sludge in the overflow tank chances are it was probably just residual. It's really hard to get all that stuff out of the system once it's in there. I have successfully flushed transmissions in the past but we also make sure the customer is fully aware that it could possibly not help at all. Best of luck.
The Flat Rate Mechanic Thank you sir for replying.... Let me ask you this.. After many TH-cam videos and research I had learned when coolant and tranny fluid mix together due to a bad intercooler one is supposed to flush the engine as well because the coolant runs through the thermostat and such also. Causing that fluid to be present in other parts of the engine. I know they didn’t do and engine flush. They also didn’t replace transmission fluid filter.
I have some gunk in my coolant resevior but it's more of a whiteish lighter brown color but it doesn't seem like it really mixed with the coolant.. sort of just floating on top of the coolant.
Sir I have Nissan wingroad 1.8 and same problem I have.my car was parked for 6 months and now I m starting with new battery it misfires with check light n temperature light pop up n oil is coming out from radiator cap when I open .wat you thing the problem is.n how to fix it.
Hey buddy great video I did something stupid I put about a quart of oil in my overflow antifreeze overflow and when I realized it I quickly took the Overflow container off poured it out and now flush the system like 3 times but the weird thing is is the car won't start ever since I put the oil in the Overflow container and realized it right away I didn't start the car so it never ran through the system all the way and it just won't start at it since I flushed it out three times I've tried starting it and it just keeps turning over and over and over and I was wondering if it is that quincentennial or is that just weird timing that maybe something else broke too thanks a lot buddy and it's on a Cavalier 02 Chevy Cavalier
Hi I have vw bora 1999 it has 93 thousand kilometer manual transmission the car doesn't overheat doesn't smoke I mean no white smoke coming from the exhaust there is no milky or oil on the coolant tank no milky on the oil deep stick doesn't loose coolant But I see milky on the oil cap My question is what causes that because I don't know if it is head gasket blown or wht
Foe, the cause might be that you drive on short distances. If your oil and coolant doesnt warm up enough it might cause the cap to be muddy. Try flooring it around the city to warm up the engine to the right temperature then drive on a higher rpm for a bit and see if it fixed the issue shorty
Hello Flat Rate Mechanic, got a quick query. Hopefully, you see this comment and can answer. :-) I've got an 2011 Opel/Vauxhall Insignia CDTI that I use as my workhorse car. It's got 65,000 miles on the clock and has got oil in the cooler. Hoping it's not a head gasket because they're a nightmare on Insignia's. It'd be a shame to scrap or sell it distressed as it's a good clean car in great condition (exterior and interior). 1) There's no visible white smoke. 2) There's no smell from the exhaust. 3) No milky coloration in the oil. In fact, oil seems fine. 4) No steam from the engine/exhaust. 5) There's no overheating...needle stays at 90 all day long. 6) There was slight diminished acceleration up a motorway/freeway slip road followed by a "coolant low, top up" message on the dashboard but I've driven it 25 miles since with no incident. No limp mode, no significant reduction in performance. What do I find slightly concerning is that there seems to be more oil in the coolant even though I've not run the car for 24 hours. Most of it's still pink with a small grey head. Plus, there were some very small bubbles in the radiator after running it according to Halfords Autocentre. Do you think this is an oil cooler issue or a head gasket issue? Mechanics/Engineers I've called seem split on the issue.
I don't no if your still on this channel are not but if so got a question for you , My friend had me come to his house today to look at his 2002 Ford Ranger Edge 4.0.. He said someone told him the water pump or the transmission cooler was leaking, When i checked it out it was a big hole in a water hose that come straight up from his water pump to around his intake about 6 inches long.. well I took that off but I noticed the water was oil pink really bad, and so is the inside of the radiator... It looks like his transmission lines is running to a separate transmission cooler that is not part of the radiator that someone installed before he even purchased the truck.... its not leaking... would that cooler still cause fluid to back up really bad into his radiator even if it is not leaking the transmission cooler is not leaking?
Great video I need your help I have a 2013 Ford escape titanium just today this afternoon it overheated I opened up the reservoir loosened up the cap so that the pressure can diminish but what ended up happening was a whole bunch of chocolate covered water was on the floor it smelt like transmission fluid but it was not red it was not Pepto-Bismol color it was chocolatey maybe with a hint of transmission fluid I took the reservoir off and it was thick and the chocolate mixture I took the dipstick off the motor there’s no water in the motor I ended up taking the whole front end off so I can take the radiator off but I haven’t been able to get the radiator off yet I was wondering I am very puzzled what do you think can be happening like I said when I loosen the cap on the reservoir so it can lose its pressure you can smell transmission fluid
@@AweHeck yes transmission oil cooler i had to get another one plus buy all new hoses plus a new radiator 1,000 bks later she was good to go but transmission also had water so I did a self home flush and it took 8 gallons of transmission fluid to flush it all out
something i learned in another video is "bypassing" the oil cooler to see if you still are getting the fluid in the coolant is a potential way to test the oil cooler.
What I did I put fresh clean water in the radiator (if you have a transmission oil coolant in the radiator) and then took a pump and started pumping and looking p straight down at the radiator cap to see if there bubbles coming up
@the flat reight mechanic Bought a 03 jetta. Replaced the turbo, alternator and battery. Runs great although i see water coming from the exhaust? I put a small line on the antifreeze reservoir so see if it was goingdown and sure as shit its going down slowly. Only problem is that my oil and transmission fluid look fine..... could this be a start of a blown headgasket or can antifreeze get into the combustion chamber another way?
i been trying to get an answer .My Skoda has issue with gear oil fluid over heating when i travel long distance suddenly i could feel m driving only in the first gear and its not shifting ,and over heat sign comes up also in my coolant i can see traces of oil .pls tell me is it time to give to scrap or is it fixable?
Hello. I have a VW passat V5. The coolant reservoir has oil in it and the oil engine dip stick level is more than normal. Coolant keep disappearing. No leakage underneath the car. The oil and water is mixing and is cloudy. Can it be the gasket, water pump or the oil cooler problem?
@@nathandecastro2441 Honestly that's what you always say. Testing for a head gasket is not that difficult. A chemical test could confirm proper operation.
Theres oil in the coolant tank on my diesel Perkins 4.236 sailboat engine.....do the same principals apply? Can it be the fresh water pump shaft seals?
i have the very same problem with my vw polo 1.6 hatch 2009 oil in water reservoir but no mixing in engine and my polo does not have oil cooler...ive sent the head cylinder for pressure testing but the head is ok and ive changed the head gasket wat could b the couse??????
@@FlatRateMechanic I have a VW Polo SE 1.4 petrol 2007 and I have manual transmission, and I have the same problem with the coolant but the coolant stays pink and clean and just the expansion tank and cap gets dirty. So how can I find the issue here?
I literally have this this morning on my golf 4 and I sent it to a mechanic but I was buzy , what would you guys suggest I ask to prevent em from ripping me off?
Would faulty oil cooler on a 08 vw Passat give performance issues. It dies not overheat but the other day had a oil leak somewhere on the bottom and there’s oil in the coolant reservoir.
my radiator is filled with oil ... pretty sure there is leak in oil cooler ... it's a diesel engine .. I will put plugs at coolant passages in the oil cooler as temporary fix .. I guess thats will be fine ..right ?? ..considering not all engines have oil cooler ...
Jose Peixoto Not true folk, oil cooler was made to prevent the "cold start" on the startup. Oil warms coolant-coolant warms oil its a two way beneficial system that prevents overheating and slightly warms the engine faster on a cold start
@@pooorman-diy1104 Never said its a necessary thing to have in your car. What i said was that it is beneficial to the engine, please read with understanding next time. My answer wasnt meant to you, but the other guy that said that it is for high speed races which doesnt make any sense and thats not the reason it was invented.
@@FlatRateMechanic i got a similar issue on my VW where engine oil leaked into the coolant via engine oil cooler, do i need to change the waterpump as well since engine oil got into it?
@@FlatRateMechanic Pulled mine yesterday, figured it was a bad oil cooler, replaced it, ran the engine drove the van... haven't yet flushed it, it was not getting more then a few drops after driving for an hour or so. I will flush it this week, The point I want top make was I tested my old oil cooler, compressed air as well.. it did not show any signs of leaking .. BUT as you mentioned, it may have been leaking only after the engine reached operating temp. Thus is there a way to test the oil cooler.... at temp off the car ? I haven't yet come up with a way to do that !@!!!
hi i have lancer 2006 . I noticed slightly creamy stuff when i open the radiator cap, it wasn't too much so i cleaned it with cloth but my coolant keep on reducing i checked engine oil regularly but found no signs of problem no heating issues so i then checked ATF which was perfect on level so not sure if it is ATF in coolant or engine oil :-(
hi, I just bought a 08 Chevy cobalt a couple weeks ago and it was running fine..besides the o2 sensor, I got the o2 sensor switched out and not even a week later my car started over heating, there is deffinetly oil in the reservoir tank?? do you think this is because of a blown head gasket??
When the engine is still cold open the radiator valve under the radiador Put a bucket under to collect water mixed with oil Turn motor on put a water hose in reservoir just enough amount to compensate what’s coming out from radiador Put some dishwashing detergente in reservoir you are gonna spend about one hour cleaning the system
Hi... Can you tell me if having a bad oil cooler will cause the engine to lose power? for example if i am driving and i accelerate it feels like it's misfiring, but it's not because I don't get any codes that it is misfiring. I did find oil in my coolant reservoir. The dipstick and engine don't have any coolant. Just did an oil change. Thanks! I have changed spark plugs, coils, airflow sensor.
I have a 2008 vw jetta 2.5L and i have the same problem with it being oil or transmission fluid in my coolant. I stopped driving it cause my transmission started hesitating to change gears in automatic but it changes just fine in manual. I have ordered a transmission cooler for the car and I was going to replace the cooler and flush the radiator coolant out of the car and add more transmission fluid to the car do you think that would solve my problem?
This happen to my Pontiac G6 V6 2006 the engine is an 3.9 something I took it to meineke they did 2 coolant flush yesterday, it got hot very quickly today and all that muddy milkshake stuff came out, when the bubbling stop greasy stuff exploded on me, I dont know why or what happened, can off you offer some insight
Hiiiiii. I own a 2010 BMW 328i has about 105k miles an there is some oil in my coolant. I've taken my vehicle to several shops but no one can give me a definite answer and I'm scared it's going to result in more serious issues because now my car is sounding rougher. PLEEZ help. 😣
Ok Ill have to troubleshoot the other stuff thanks for the info on this video. I have done a compression test all of the cylinders are at normal psi specs. It could be the trans cooler need to check that. The eclipse does have one on the radiator itself integrated. Again thanks for the information.
Hi I have a 2007 HHR brought to Valvoline was fine. Went to Honest one to get a quote for my tie rod etc. they noticed a small amount of oil in my coolant resvour (doesn’t look like this). I’ve drove over 300 mile since my oil change no over heating, no issues, no coolant in oil. I’m not sure as of what to do next as it’s very spendy for all these test. Can it still be a head? Or would the coolant show in oil by now.
I have a Golf Mk5 GT Tdi 140 and I have oil leak on my drive way and also engine oil in my coolant. Not a large amount though. I'm 90% sure it's my oil cooler. What would you do in my situation?
I have a similar situation with my 2013 Passat. No signs of anything weird in the motor oil anyhow and so I am worried my cooler transmission cooler bit the dust.
Actually it's the other way round coolant is done like that to warm the oil up faster on cold days then keep it cool when running but mostly it's to get the oil up to temprature faster
How long do you leave the gasket test in for to find out if its leaking ? I've just replaced the head gasket and it's not overheating but the new coolant feels greasy like the oil is mixing with the water. I didn't think of the oil cooler leaking. Hopefully that's the problem with mine 🤔
When I did the head gasket tester in my antifreeze reservoir the fluid turned from blue to like a light ish green. Maybe I’m color blind and it’s actually yellow? Lol I don’t think it’s a head gasket though because I’m not overheating either, temps are normal etc. same as this vw. Any help would be appreciated thanks!
the thing is, your test would only be positive if the cylinder was to blow into the waterways, overhead cam engines have a oil passage from the block to the head that is more psi then the cooling system. and when it blows out that way the oil system feeds into the cooling system .
This is very true and a great point to bring up. It is very very rare for oil to leak into coolant through the head gasket unless the car has been overheated and the head is warped. Headgasket is designed to hold back over 200PSI in combustion pressure so unless the car has been overheated it is pretty unlikely to have 30psi of oil breech that seal. But as you have stated not impossible. And if the car was not showing any signs of overheating would probably be on of the last this I would consider.
I have a bunch of goop in the cooling system of my 3.9 Impala. Looks like peanut butter pudding, latte color. car runs fine - no smoke engine seems strong. No sign of water in the oil or transmission. I'm hoping it is the transmission cooler. It's thick and nasty. Very hard to flush any of it out. It overheated and I parked it immediately. Any suggestions for cleaning it out? I have heard that soap for the dishwasher, due to its lack of foam will work to flush the stuff out. I'm thinking that I need to seal the radiator off and pressure test it. It has so much gunk in it though I don't know it that would work.
have the same problem, thick muddy peanut butter type liquid that seperates from the coolant/water. picking it up from mechanic tommorow but came to the conculsion that it must be a leaking oil cooler as the pressure from the oil cooler is higher than the pressure from the cooling system. so new oil cooler and going to drive it around for a week with a stripper in the system then in a week take it in for another flush then refill with coolant
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Hello I have a problem regarding golf 5 gti 2006. It is a little oil in the water. I have opened the lid they have cleaned have a mild flake but still dries a little oil. It has a cooling oil cooler with which this yoke is not genuine is japan. What can happen?
The Flat Rate Mechanic I have some type of oil in my radiator. When I bleed my radiator it came out looking like coffee with creamer. How do I find the cause of this. Especially when it leaked onto my timing belt
I have an 08 impala v6 3.5
I have a 2008 vw jetta 2.5L and i have type substance in my coolant. I have ordered transmission cooler for the car I was going to change the cooler and flush all of the coolant out of my car and add more transmission fluid to the car. I have stopped driving the car because it stalls when Switching gears in automatic but it changes gears in a manual just fine. Do you think this will solve my problem?
I would assume that the reservoir had to be changed, with the oil in, it has a sensor... Also thermostat, temp coolant sensor, fan switch, gets all affected... What do you think...
Would a shop test the cooler like that or just replace it, and everything in sight? Impressive, honest mechanic.
Everyday I learn something new about what could happen to my car and everyday I say, not another thing
The one thing you did not check was human error, very common nowadays that none mechanical people place oil in modern car in any hole they can find and coolant in the closest hole possible. Always keeping mechanics in work.
Good point. Anything is possible. I have seen some crazy stuff!
At 5:15you meant just the opposite Oil leaking into the coolant?
Yeah it's awesome when they mistake the transmission fluid dipstick for the oil dipstick and dump 30 weight into your transmission. $5,000 later and it's almost impossible to prove positive who put the oil in the wrong hole. People are so stupid they cost you a lot of money and headaches
Yeah few months ago I accidentally put auto transmission fluid in oil because I need glasses and the bottles looked so alike it didn't go very well
Another quick way is to leave the oil cooler mounted to the engine and remove the water hoses and crank the engine up and see if oil comes out of the water ports, it might only leak with the engine hot
Not a bad suggestion at all. Great idea!
Thank you I think you kind of answer my question there's one other won the rule out on a 6.6 turbo diesel thank you
Figured it was the oil cooler because the sludge matched the motor dipstick. Same thing on mine. The only other thing though is depending on the vehicle it may be a water pump?
Yes, had that on a 1.6 petrol 2010 astra.
How do you clean the oil inside the whole hoses and radiator? I coolant flush ? But what liquid is best to get everything out ?
Fors recomends flushing with a degreaser like simple green.
good day .I have a similar problem you had with the Volkswagen .I have a honda 1,8 exi 2006 model with what you have explained.THE CAR DONT SEEMS TO HAVE A OIL COOLER.Can you assist please.THANKS
Hello sir, i have changed twice the oil cooler on my 2002 passat, twice we clean all the hoses but still my coolant reservoir its still full of oil
Head gasket?
@@project370z it was not the head gasket, the second oil cooler ( new bytheway) was broken inside too.....this is whats happen when we dont buy original parts....yeah, 50 dollars new oil cooler...flush up the cooling system, mount original oil cooler ( 200 usd), now all is clean
I changed mind twice hoping for the best
@@alicutz79 I am having problem in VW Touran, oil mixing in coolant although no sign in sensors and no overheating issues. So need to change oil cooler?
@@bravewarrior33 i have changed 3 oilcoolers, untill i bought original parts.If you buy, buy original oilcooler, is arround 250 euro but it will do the job.All Volkswagen have this issue sooner or later, unfortunately, if you dont change that oilcooler soon, the heater will block inside and you will no longer have heat inside in the winter
If it’s the oil cooler, will you still see white smoke and get the sweet smell at the exhaust?
I've had the same issue and my oil cooler was indeed bad, it was around 40 bucks and got it changed, the flushing process is taking the most time here
I'm on my 10th flush 😭😭
I had the oil cooler and transmission oil cooler replaced and it was flushed 5 times and it seemed clean enough. Now I have oil in the cooler again and I really can't tell if it's from before or new(still leaking into coolant from another place).
Really at my wits end.
@@robbylebotha any update bud, I also replaced both engine oil cooler and transmission oil cooler and the coolant is still mixing with oil and I'm not sure if it's old or new
@@ibrahimsalamah7363 Did you ever figure it out? I would presume it was a bad intake or head gasket?
@@robbylebothahi, it is possible the coolant entering to inside transmission?
Great video. It's made me learn something new about my A3.
Since owning the car, I have done a few long trips like 3 to 4 hours in the car. But no over heating. I don't have obvious signs like Mayo on the oil cap, think it's a head gasket. But I got a head gasket tester.
The results were - yellow means it's a headgasket
Blue means nothing wrong with it
And green means possible headgasket or possible contamination.
My A3 got GREEN. I don't have oil in the coolant tank like this car does, but is it worth changing the filter and flushing the system, then putting new coolant in?
Hope to hear from your reply soon. Thank you.
Very very likely if you have the same type of cooler like the video, it's the cooler. I'm now on my third one at 200k especially if the coolant is just murky and rusty looking.
I have a 2006 Audi A4 cabrio and I just had the same thing happen to me tonight. Is this a common problem with VAG (VW, Audi, lambo, now that they cross parts on engines) autos? Great video! I'm going to flush my system tomorrow and trace coolant lines!!
How so you flush coolant reservoir? With oil cooler off? Water hose down the reservoir until it runs clean?? Any help would be appreciated!!
Hey....I've got a Bora 1.6 and having a problem with the transmission oil mixing with the coolant...the video is helpful..but am wondering if their would be any water in the transmission... how do I go about solving this problem..the previous owner of the vehicle had it parked down for some time......
Helow man thanks for sharing this info,
I have a question, i have a seat corduba 2009 and i sow some oil in the water tank sow i go to the automatic transmission oil coolar to now if is mixing oil and water but how can i now if it s the problem?
besides de oil cooler and the head gaskets, what else could make the oil leak into the coolant reservoir???
I have an 2008 Audi a4 2.0t s-line that just done that same thing. When it does that does it make the car run rough and affects the oil pressure?
Hi, I am not sure if I have a blown head Gasket or not and whether to use a head gasket Sealer. Basically I have oil deposits in my coolant tank, oil has leaked into my coolant resovoir and and a layer of around 2-3mm builds up and sits on top of the coolant. My car is a Peugeot 207 1.4 Petrol 2011 model with manual gearbox. I have been driving it fine for nearly 3 years with this issue and have done approximately 12000 miles since I first noticed this. When I take into into the garage they seem to think it is a blown head gasket. There is also a small oil leak on the cylinder head on the left hand corner.
Sounds like exactly the same problem on my 2010 Audi A4...but after watching this vid I suspect Oil Cooler may be the problem..I'll know 2moro
My golf stopped selecting after I discovered oil in my radiator. Will it select again if change the gear coolant
If the block tester does not turn yellow can you re use the fluid or does it need to be thrown out?
Im not sure if my 2008 kia rio5 has an oil cooler but there is oil in the radiator hose and in the coolant but it has not mixed with the oil
Hi my honda crv 2010 has oil in the water. My question is does honda crv have a oil cooler
Hi, I have a 2001 Honda Civic 1.7 vtec. Temp gauge was reading normal but blowing cold air then temp gauge rose very rapidly. Was not far from home. I bought a thermostat figuring that was bad. Anyways, black oil junk in coolant resivor. Oil on dip stick very black even though just changed recently. Not sure what to do.
I have a bluemotion 1.2 tdi and it's mixing oil in the water reservoir, and noticed the dipstick is dry ,what may be the cause
I have a golden trailblazer . The oil was super low so I refilled it and found out the coolant was low as well but I couldn’t open it up becuase it was presurized , after I let it cook I filled coolant and now the van is leaking this Grayish sludge mixture , it leaked while the van was off but I drove without the engine temp over heating , it stayed way below the half way mark, but now when I parked the van more of that Greyish sludge comes out , what do you think could be wrong ?
I have green slugs coming out my top hose going to my motor
How many times did you flush the system, and did you take any additional components off when you flushed (thermostat, waterpump, radiator)
Good question coz 1 fuel trim premiter is on the thermostate sensor , if its caked in oil the engine may run rich as it gets inaccurate reading on coolant temp
I have oil in my radiator reservoir I do have a code P 1157 I don’t know why I have oil in my coolant. I change my radiator. I cleaned my coolant reservoir and it still has oil in it. Do you happen to know what it could be. This is a 2003 Honda accord LX 2.4 for doors.
Did this in fact end up being the oil cooler?
Do they make test kits to tell if its oil vs transmission fluid?
I noticed in my 2008 F250 6.4 Diesel a Butterscotch creamy substance in my Degas bottle. So, I flushed system out about a month ago. But, now I'm having a hard time moving shift arm into gear and transmission not smooth. So, I checked degas bottle and transmission stick. Dang if it the creamy stuff wasn't in both places. An area mechanic said I probably need to flush again plus get transmission flushed then replace my radiator. What do you think???
I have a 2014 Chrysler town and country that has the same sludge in the radiator. How should I troubleshoot this type of vehicle?
What about on a ford f150 change the oil cooler twice and gasket over heats still have that problem had the engine rebuilt by certified mechanic please help thanks
Hello sir
If you just done service a week ago and you start having this problem could it be anything to do with the service?
Hey! Thank you for your information.. Let me give you the run down.. 01 4Runner 6 cylinder... Transmission cooler is built into the radiator.. Took my truck to Toyota dealership 3 days ago.. Diagnosis was tranny fluid and coolant had mixed together.. They replaced my radiator with a new one.. Flushed tranny twice.. Paid and drove off the lot and got home to check my coolant reservoir. Mud milkshake!!!!!! Returned to dealership very upset.. WHile driving back tranny was shifting hard. Almost slipping a few times.. No overheating from what I can tell on gauges. Being that they replaced radiator, flushed tranny and told me all was well I trusted it was fixed.. Obviously not. Can you advise me on what to do or to be aware of at this point???? Thank you sir..
Well unfortunately once coolant contaminants transmission there is a high probability that they'll be permanent damage caused to the transmission. Flushing it out several times is your best bet In hope that it will save it. It's really all you can do. And as for the sludge in the overflow tank chances are it was probably just residual. It's really hard to get all that stuff out of the system once it's in there. I have successfully flushed transmissions in the past but we also make sure the customer is fully aware that it could possibly not help at all. Best of luck.
The Flat Rate Mechanic Thank you sir for replying.... Let me ask you this.. After many TH-cam videos and research I had learned when coolant and tranny fluid mix together due to a bad intercooler one is supposed to flush the engine as well because the coolant runs through the thermostat and such also. Causing that fluid to be present in other parts of the engine. I know they didn’t do and engine flush. They also didn’t replace transmission fluid filter.
They should have done both those things. Yes.
Can a oil cooller problem could lead to engine piston breaking
How do you determine which failure for oil in radiator but not visa versa 13 Impreza 2.0
I have some gunk in my coolant resevior but it's more of a whiteish lighter brown color but it doesn't seem like it really mixed with the coolant.. sort of just floating on top of the coolant.
Maybe you can help me I have a 1999 ford f150 4.2 v6 it' looks like it has oil in my overflow tank does it have oil cooler on it
How do you get rid of the sludge that migrated through the system heater core ect.
Sir I have Nissan wingroad 1.8 and same problem I have.my car was parked for 6 months and now I m starting with new battery it misfires with check light n temperature light pop up n oil is coming out from radiator cap when I open .wat you thing the problem is.n how to fix it.
Hey buddy great video I did something stupid I put about a quart of oil in my overflow antifreeze overflow and when I realized it I quickly took the Overflow container off poured it out and now flush the system like 3 times but the weird thing is is the car won't start ever since I put the oil in the Overflow container and realized it right away I didn't start the car so it never ran through the system all the way and it just won't start at it since I flushed it out three times I've tried starting it and it just keeps turning over and over and over and I was wondering if it is that quincentennial or is that just weird timing that maybe something else broke too thanks a lot buddy and it's on a Cavalier 02 Chevy Cavalier
Very good video with outstanding camera views.
Hi
I have vw bora 1999 it has 93 thousand kilometer manual transmission the car doesn't overheat doesn't smoke I mean no white smoke coming from the exhaust there is no milky or oil on the coolant tank no milky on the oil deep stick doesn't loose coolant
But I see milky on the oil cap
My question is what causes that because I don't know if it is head gasket blown or wht
Foe, the cause might be that you drive on short distances. If your oil and coolant doesnt warm up enough it might cause the cap to be muddy. Try flooring it around the city to warm up the engine to the right temperature then drive on a higher rpm for a bit and see if it fixed the issue shorty
Hello Flat Rate Mechanic, got a quick query. Hopefully, you see this comment and can answer. :-)
I've got an 2011 Opel/Vauxhall Insignia CDTI that I use as my workhorse car. It's got 65,000 miles on the clock and has got oil in the cooler. Hoping it's not a head gasket because they're a nightmare on Insignia's. It'd be a shame to scrap or sell it distressed as it's a good clean car in great condition (exterior and interior).
1) There's no visible white smoke.
2) There's no smell from the exhaust.
3) No milky coloration in the oil. In fact, oil seems fine.
4) No steam from the engine/exhaust.
5) There's no overheating...needle stays at 90 all day long.
6) There was slight diminished acceleration up a motorway/freeway slip road followed by a "coolant low, top up" message on the dashboard but I've driven it 25 miles since with no incident. No limp mode, no significant reduction in performance.
What do I find slightly concerning is that there seems to be more oil in the coolant even though I've not run the car for 24 hours. Most of it's still pink with a small grey head. Plus, there were some very small bubbles in the radiator after running it according to Halfords Autocentre.
Do you think this is an oil cooler issue or a head gasket issue? Mechanics/Engineers I've called seem split on the issue.
I don't no if your still on this channel are not but if so got a question for you , My friend had me come to his house today to look at his 2002 Ford Ranger Edge 4.0.. He said someone told him the water pump or the transmission cooler was leaking, When i checked it out it was a big hole in a water hose that come straight up from his water pump to around his intake about 6 inches long.. well I took that off but I noticed the water was oil pink really bad, and so is the inside of the radiator... It looks like his transmission lines is running to a separate transmission cooler that is not part of the radiator that someone installed before he even purchased the truck.... its not leaking... would that cooler still cause fluid to back up really bad into his radiator even if it is not leaking the transmission cooler is not leaking?
If you bypass the old cooler what will happen
I would want a new OEM oil cooler installed. I wouldn’t trust that old part anymore.
why? it was literally tested to be good
Great video I need your help I have a 2013 Ford escape titanium just today this afternoon it overheated I opened up the reservoir loosened up the cap so that the pressure can diminish but what ended up happening was a whole bunch of chocolate covered water was on the floor it smelt like transmission fluid but it was not red it was not Pepto-Bismol color it was chocolatey maybe with a hint of transmission fluid I took the reservoir off and it was thick and the chocolate mixture I took the dipstick off the motor there’s no water in the motor I ended up taking the whole front end off so I can take the radiator off but I haven’t been able to get the radiator off yet I was wondering I am very puzzled what do you think can be happening like I said when I loosen the cap on the reservoir so it can lose its pressure you can smell transmission fluid
Did you find out what is was?
@@AweHeck yes transmission oil cooler i had to get another one plus buy all new hoses plus a new radiator 1,000 bks later she was good to go but transmission also had water so I did a self home flush and it took 8 gallons of transmission fluid to flush it all out
something i learned in another video is "bypassing" the oil cooler to see if you still are getting the fluid in the coolant is a potential way to test the oil cooler.
I have this in my 01 Honda accord what can I check?
If its automatic it is probably your radiator.
@@FlatRateMechanic we had a radiator change ..but it sti has oil,what do u suggest ..and it has a leak,I have to keep refilling
What I did I put fresh clean water in the radiator (if you have a transmission oil coolant in the radiator) and then took a pump and started pumping and looking p straight down at the radiator cap to see if there bubbles coming up
I need to know how to fix the problem?
I have the same car. Was it actually the oil coolant that you changed
Yes it was the oil cooler
@@FlatRateMechanic where did you get the caps?
@the flat reight mechanic Bought a 03 jetta. Replaced the turbo, alternator and battery. Runs great although i see water coming from the exhaust? I put a small line on the antifreeze reservoir so see if it was goingdown and sure as shit its going down slowly. Only problem is that my oil and transmission fluid look fine..... could this be a start of a blown headgasket or can antifreeze get into the combustion chamber another way?
I have a 2002 Jeep Liberty the coolant tank has a thick brown sludge (thicker than in this video) what could it be? Please help!
i been trying to get an answer .My Skoda has issue with gear oil fluid over heating when i travel long distance suddenly i could feel m driving only in the first gear and its not shifting ,and over heat sign comes up also in my coolant i can see traces of oil .pls tell me is it time to give to scrap or is it fixable?
I am having this problem on my vw passat 2013. But I'm overheating do u think it's the oil or transmission cooler?
Hello. I have a VW passat V5. The coolant reservoir has oil in it and the oil engine dip stick level is more than normal. Coolant keep disappearing. No leakage underneath the car. The oil and water is mixing and is cloudy. Can it be the gasket, water pump or the oil cooler problem?
Most likely an oil cooler problem
honestly i’d say head gasket
@@nathandecastro2441 Honestly that's what you always say. Testing for a head gasket is not that difficult. A chemical test could confirm proper operation.
Theres oil in the coolant tank on my diesel Perkins 4.236 sailboat engine.....do the same principals apply? Can it be the fresh water pump shaft seals?
i have the very same problem with my vw polo 1.6 hatch 2009 oil in water reservoir but no mixing in engine and my polo does not have oil cooler...ive sent the head cylinder for pressure testing but the head is ok and ive changed the head gasket wat could b the couse??????
I would be suspecting trans cooler then.
@@FlatRateMechanic I have a VW Polo SE 1.4 petrol 2007 and I have manual transmission, and I have the same problem with the coolant but the coolant stays pink and clean and just the expansion tank and cap gets dirty. So how can I find the issue here?
Hi from Mexico, is a automatic jetta or manual? Thanks
I have the same problem with my ram 5.7 and no coolant when I drain the oil or the dip stick
I literally have this this morning on my golf 4 and I sent it to a mechanic but I was buzy , what would you guys suggest I ask to prevent em from ripping me off?
What was the resolution to this? What did they tell you
@@juanfroste9909 I got a new radiator surprisingly cheap barely 150.
Why u didn’t check pressure in cylinder?
Maybe is just blown head gasket?
Combustion leak test for CO2 as well will be good to do.
Guess you didn't watch the whole vid... He clearly did a co2 test
Mine is looking like and doing the exact same thing except mine Volkswagen is over heating soo any guesses?
Would faulty oil cooler on a 08 vw Passat give performance issues. It dies not overheat but the other day had a oil leak somewhere on the bottom and there’s oil in the coolant reservoir.
The rear main seal is very common on throws cars and it can cause a lean driveability problem and a check engine light.
@@FlatRateMechanic how does the rear main cause a lean code? thanks
my radiator is filled with oil ... pretty sure there is leak in oil cooler ... it's a diesel engine ..
I will put plugs at coolant passages in the oil cooler as temporary fix .. I guess thats will be fine ..right ?? ..considering not all engines have oil cooler ...
Absolutely YES; oil cooler is for VERY HIGH speed driving in hot days: NEVER needed for calm everyday drives.
Jose Peixoto Not true folk, oil cooler was made to prevent the "cold start" on the startup. Oil warms coolant-coolant warms oil its a two way beneficial system that prevents overheating and slightly warms the engine faster on a cold start
@@damianwalaszczyk9626 but not all engines have oil cooler .... so it's not a necessary thing ..
@@pooorman-diy1104 Never said its a necessary thing to have in your car. What i said was that it is beneficial to the engine, please read with understanding next time. My answer wasnt meant to you, but the other guy that said that it is for high speed races which doesnt make any sense and thats not the reason it was invented.
I have c15 cat diesel. Do you thing oil cooler issue?
Great video. Was it the oil cooler in end?
Yes, it was.
@@FlatRateMechanic i got a similar issue on my VW where engine oil leaked into the coolant via engine oil cooler, do i need to change the waterpump as well since engine oil got into it?
Ok what was the reason of oil mixing water ?
Why sensor not warning overheating issues when oil cooler fails?
What was the issue at the end? You left us without an answer to the case.. it is like a tv series 😁😂💪🏾
This one did have a bad oil cooler.
@@FlatRateMechanic Pulled mine yesterday, figured it was a bad oil cooler, replaced it, ran the engine drove the van... haven't yet flushed it, it was not getting more then a few drops after driving for an hour or so. I will flush it this week, The point I want top make was I tested my old oil cooler, compressed air as well.. it did not show any signs of leaking .. BUT as you mentioned, it may have been leaking only after the engine reached operating temp. Thus is there a way to test the oil cooler.... at temp off the car ? I haven't yet come up with a way to do that !@!!!
hi
i have lancer 2006 . I noticed slightly creamy stuff when i open the radiator cap, it wasn't too much so i cleaned it with cloth but my coolant keep on reducing i checked engine oil regularly but found no signs of problem no heating issues so i then checked ATF which was perfect on level so not sure if it is ATF in coolant or engine oil :-(
Sell it. Dont say anything
hi, I just bought a 08 Chevy cobalt a couple weeks ago and it was running fine..besides the o2 sensor, I got the o2 sensor switched out and not even a week later my car started over heating, there is deffinetly oil in the reservoir tank?? do you think this is because of a blown head gasket??
Once you replace the oil cooler how should you clean the oil out of the coolant system?
When the engine is still cold open the radiator valve under the radiador
Put a bucket under to collect water mixed with oil
Turn motor on put a water hose in reservoir just enough amount to compensate what’s coming out from radiador
Put some dishwashing detergente in reservoir you are gonna spend about one hour cleaning the system
I have a Nissan Altima 1998 and pas oil in the radiator what should I do to fix it
when i changed oil i noticed that it is mixed with water.. in water tank doesnt have oil. what is the problem
Hi... Can you tell me if having a bad oil cooler will cause the engine to lose power? for example if i am driving and i accelerate it feels like it's misfiring, but it's not because I don't get any codes that it is misfiring. I did find oil in my coolant reservoir. The dipstick and engine don't have any coolant. Just did an oil change. Thanks!
I have changed spark plugs, coils, airflow sensor.
Hello, I'm currently having the same issue. Any results on what your issue was?
Head gasket
I have a 2008 vw jetta 2.5L and i have the same problem with it being oil or transmission fluid in my coolant. I stopped driving it cause my transmission started hesitating to change gears in automatic but it changes just fine in manual. I have ordered a transmission cooler for the car and I was going to replace the cooler and flush the radiator coolant out of the car and add more transmission fluid to the car do you think that would solve my problem?
Hi how can I check if my oil cooling system is working well on my BMW x3 2007 I did find some oil on the cooling reservoir tank
This happen to my Pontiac G6 V6 2006 the engine is an 3.9 something I took it to meineke they did 2 coolant flush yesterday, it got hot very quickly today and all that muddy milkshake stuff came out, when the bubbling stop greasy stuff exploded on me, I dont know why or what happened, can off you offer some insight
Shelia35 what ended up happening and how much did it cost to fix?
Hiiiiii. I own a 2010 BMW 328i has about 105k miles an there is some oil in my coolant. I've taken my vehicle to several shops but no one can give me a definite answer and I'm scared it's going to result in more serious issues because now my car is sounding rougher. PLEEZ help. 😣
Would a heater core cause this? I have a 1997 eclipse no oil cooler no coolant in any other areas. It did have brown milky crap in the radiator.
A bad or leaking heater core could not cause that.
Ok Ill have to troubleshoot the other stuff thanks for the info on this video. I have done a compression test all of the cylinders are at normal psi specs. It could be the trans cooler need to check that. The eclipse does have one on the radiator itself integrated. Again thanks for the information.
I have 2013. Mercedes Benz 300C 4matic is doing the same thing. I have oil in my coolant. This is common problem with that year
I've got a Bora....and am seeing oil in the coolant reservoir.....my mechanic said I have to get a new engine..
Hi I have a 2007 HHR brought to Valvoline was fine. Went to Honest one to get a quote for my tie rod etc. they noticed a small amount of oil in my coolant resvour (doesn’t look like this). I’ve drove over 300 mile since my oil change no over heating, no issues, no coolant in oil. I’m not sure as of what to do next as it’s very spendy for all these test. Can it still be a head? Or would the coolant show in oil by now.
Car has 102k miles always been maintained... no smoke. Nothing driving normal I do about 80+miles a day
Yep you need more pressur. Had same issue . It wont lea untill put on heat or more highee pressure
So was it a rusty radiator from using tap water
I have a Golf Mk5 GT Tdi 140 and I have oil leak on my drive way and also engine oil in my coolant. Not a large amount though. I'm 90% sure it's my oil cooler. What would you do in my situation?
Hey did you fix the problem?
Does an VW golf 1 have this oil cooler
I have a similar situation with my 2013 Passat. No signs of anything weird in the motor oil anyhow and so I am worried my cooler transmission cooler bit the dust.
Actually it's the other way round coolant is done like that to warm the oil up faster on cold days then keep it cool when running but mostly it's to get the oil up to temprature faster
hi i have a vw mk1 and i think oil and have mixed because i see dust like colour in oil tube how fix it
How long do you leave the gasket test in for to find out if its leaking ? I've just replaced the head gasket and it's not overheating but the new coolant feels greasy like the oil is mixing with the water. I didn't think of the oil cooler leaking. Hopefully that's the problem with mine 🤔
Same
When I did the head gasket tester in my antifreeze reservoir the fluid turned from blue to like a light ish green. Maybe I’m color blind and it’s actually yellow? Lol I don’t think it’s a head gasket though because I’m not overheating either, temps are normal etc. same as this vw. Any help would be appreciated thanks!
Hi,I have similar problem turned green, no overheating but lose some coolant, did you find out what was the problem
the thing is, your test would only be positive if the cylinder was to blow into the waterways, overhead cam engines have a oil passage from the block to the head that is more psi then the cooling system. and when it blows out that way the oil system feeds into the cooling system .
This is very true and a great point to bring up. It is very very rare for oil to leak into coolant through the head gasket unless the car has been overheated and the head is warped. Headgasket is designed to hold back over 200PSI in combustion pressure so unless the car has been overheated it is pretty unlikely to have 30psi of oil breech that seal. But as you have stated not impossible. And if the car was not showing any signs of overheating would probably be on of the last this I would consider.
I have a bunch of goop in the cooling system of my 3.9 Impala. Looks like peanut butter pudding, latte color. car runs fine - no smoke engine seems strong. No sign of water in the oil or transmission. I'm hoping it is the transmission cooler. It's thick and nasty. Very hard to flush any of it out. It overheated and I parked it immediately. Any suggestions for cleaning it out? I have heard that soap for the dishwasher, due to its lack of foam will work to flush the stuff out.
I'm thinking that I need to seal the radiator off and pressure test it. It has so much gunk in it though I don't know it that would work.
Wesley Edwards lower intake gaskets very common on that motor
have the same problem, thick muddy peanut butter type liquid that seperates from the coolant/water. picking it up from mechanic tommorow but came to the conculsion that it must be a leaking oil cooler as the pressure from the oil cooler is higher than the pressure from the cooling system. so new oil cooler and going to drive it around for a week with a stripper in the system then in a week take it in for another flush then refill with coolant
@@noneofurbiz7459 Out of curiosity, did the replacement cooler fix your issue?
Did it end up being the oil cooler
I have a 910 bluebird I have a little oil on top coolant and in radiator car runs normal with a little as smoke and no over heating car runs normal