Ford Triton intake manifold coolant leak.
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Additional information on Ford Triton intake manifold coolant leak. 4.6, 5.4, 6.8 engines
Ron Williams
Mobile Fix Automotive
26793 Madison Ave Suite 100
Murrieta, Ca. 92562
951-579-7146
Website www.mobilefixautomotive.com/
FaceBook / mobilefixautomotive
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Ford Triton coolant leak 4.6, 5.4, and 6.8 engines
Actual breakdown video of what the intake gasket looks like when it fails.
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I'm a very competent mechanic but don't have too many of these under my belt as they say, thank you for the insight. It has been highly enlightening.
Ron you just might be 1 of the greatest of all time
I want to personally thank you very much. I purchased a '98 F-150 with the 4.6L engine about 6 months ago and I would have given up on it if not for this video. I started by replacing coil packs, plugs, plug wires, injectors, fuel pump, and several sensors. When I saw the slush on the bottom of my oil cap I thought it had blown a head gasket. It turns out the problem the whole time was a leaking intake manifold gasket in 3 places including the crossover tube. So, Thank-you and you make great videos.
Thank you for your videos! I've learned a lot. Did a job on my Expedition with busted spark plugs and now it's running like a champ.
Ron, and Justin, thank you for the great video. My daughter has an ‘04 Expedition I passed down to her. The water pump went out, and she continued to drive it. I changed out the thermostat, hoses, and water pump. All good, right? No!!! The antifreeze was getting low in the expansion tank daily. I thought maybe there was air in the system I didn’t bleed. Then, when I drove it I could smell that sweet, hot antifreeze odor. Did some looking, and found it was leaking at that manifold corner on the opposite side you referenced in your video. I did saw a piece of black plastic laying in the valley under the manifold in antifreeze but thought nothing of it. Figured it was trash. I used compressed air to clean out the antifreeze to have a fresh place to investigate before I started the engine. That’s when I saw it flowing from that area (right side of the manifold). With the info you provided I’m wondering if that small piece of plastic I saw was a broken edge from the manifold. I’ll check in the morning with an inspection mirror. I do you believe you set me on the right path!!! Thank you.
Your son Justin is a good cameraman, far better than most TH-cam videographers. He doesn't have the shakes (comes from being sober) and keeps things in focus (ditto.)
You can be proud of him.
I appreciate your vent for the day as I have the same feelings about automotive design engineers in so many situations. That's why the used to say FORD meant "Fix Or Repair Daily"
Ford stealerships are riddled with corruption and cheating customers.
Ford prototyping team "won't this be hard to work on?"
Ford engineers "yeah, but that won't be our problem."
Nope...........this will ensure that these fools bring it to us to charge them $1000 to fix something that could have been done for $200!
FYI, it was what you said, Ron. Again, on the opposite side of your example. Got the new part, and putting it all back together. Thanks again!!!
Thankyou for the videos you have been a big help! I agree with you about the knuckle head engineers who probably never turned a wrench a day in their lives, I'm in the process of taking a broken spark plug out of the#4 cylinder on a 2001 2 valve 5.4 and I'm not a engineer but I see a lot of stuff that could be designed different so wish me luck!!!
I'm currently in the process of doing this to my 2008 F150, 4.6. Great tip on the gasket that located underneath the thermostat area. I still have my intake off, and I will definitely look at that gasket tomorrow. Since I had the upper intake removed, I went ahead and replaced the valve cover gaskets. That's another job in itself.
It’s about time someone post a good video. Great job guy
I got 4.6 engine on my 1997 Ford Expedition when I was changing out the spark plugs and the original plug cables just the other day I noticed some coolant green fluid on there and a lot of corrosion. You video helped me figure out my next steps. Seems like the work on this old is never ending but with 72k miles and in great interior and exterior shape for it is worth it for me. Thank you sir!
Wait until you hit 320k on the orig motor & tranny like my 1-owner 98 Eddie Bauer 4wd. Suddenly you realize you haven't had a car payment in 21 years. Makes the cost of maintenance & repairs irrelevant. See you at 400k.
Здравствуйте, у меня тоже форд экспедишн 1998г.в, но впускной коллектор из металла
Just watched your video and you answered my question about my coolant leak. I now know what to do. Thanks
Hey Ron, I have a 2002 Ford F-250 5.4L 2V CCLB 4WD with 227,400 miles on the clock. I noticed the tell tale signs too. Coolant pooling under the air Intake, wetness on the crossover tube, coolant dripping from the Bell Housing, coolant in the tailpipe, yeah it was a mess. I ordered a Dorman, because there were no Ford Manifolds in the country during December 2022. I was getting the Night Terrors thinking about the Dorman failing after all the work needed to take out and put in. Called Ford again and found one in Indiana!!! Shipped, delivered (to Florida) and we replaced about 2 weeks ago. Working great so far, yeah, there was coolant in the valley, typical piece on original Ford Manifold had cracked allowing coolant to leak. Replaced the plugs, some of the boots and cleaned the valley good. Thanks for the video!
Just found this video and it’s the best one yet. My 08 f150 4.6 started leaking and misfiring 3 years ago and JB welded it and it worked. It is now acting up again but I’m gonna do it again bc I’m not changing that intake. Thank you sir
Thanks Ron for answering my call and question! You're awesome!!
Your welcome
Excellent video, thanks Ron and Justin.
From Austin Texas.
You are awesome for putting these videos out for all of us. Thank you.
Your are best thanks for all your help I do have the problems
Your video gave me the opportunity to be able to work on my own truck. And for that I am very greatful.
Ron, I agree with you regarding the difficulty getting to the bolts on the underneath of the thermostat crossover part of the intake manifold. I do disagree that it could have been redesigned with the bolts going in from the top. The reason I disagree is that if the bolts were made to go in from the top, the nuts to hold the bolts would have to be made to be contained within the plastic part of the manifold and I think it would be too fragile and you would likely twist the nuts out of the plastic when removing. Of course making the entire intake out of metal would have resolved the issue entirely. Great video!
Engines are extremely well designed by teams of smart people who are under tight budgets and ridiculous government constraints on weight. Engine gaskets really aren't supposed to last 25 years like I need them to. I don't think the engineers were tasked to consider problems at the 20+ year mark when most (not me) would have a new vehicle again.
Very informational keep it up Mr. Ron
Thanks, Ron. And Justin.
Thanks, Ron. This is what's wrong with my 2003 Grand Marquis leaking right at that gasket in between the thermostat housing and the intake manifold
Hi ron this is ron up in the upper Michigan having the same problem on our truck good video very helpful thanks
Thanks Ron &Justin .
Thank you SIR.for breaking it down...i.m on my 3rd manifold fix...07 ford f150 .bought this truck new...NO MORE FORD TRUCKS FOR ME....1200.00 dollars a pop
One of the best videos yet on the cause/repair of the mysterious coolant leaks on Ford's 4.6 engines! Similar to GM's notorious leaks on their 3.8 V6 engine's poorly designed manifolds, I found that the ungraded aftermarket parts are the way to go...had good luck with Dorman parts on many a 3.8 leak repair! (But this 4.6L repair is a whole lot more involved labor-wise.)
And I have found the Dorman manifold for the Triton engine suck. I wont install them anymore! Thanks for the compliment
@@SandCarServices good to know that Dorman product is no good on the 4.6....They worked well for me on Buick 3.8 v6.
Dorman used to be a good company but like most they are using China as source and that's a problem.
@@SandCarServices Dorman is hit or miss I work in parts and have found several dorman parts that actually say ford and other makers on them and some that actually say made in USA. I used dorman with great success only because I know which parts are good and which to avoid. I have had to replace the intake twice. The first because the crossover was plastic and I noticed a crack In the thermostat housing and the second it started leaking on the passenger side.
Not to mention the GM 3100 lower intake manifold and distributor gasket Leaks! Did one of them on my Grand Prix it was quite a challenge.
This helped me soo much! Thanks for posting this video. Exactly what I needed.
Great info. Keep the videos up very helpful. Did my 1997 5.4 #8 insert after watching your video on them. Have 8k on it and still running.
+Cyndi Thoreson thank you
Great info Brother and i like the details. Very Helpful. Keep up the great work.
Thanks for the video Ron (and Justin). I've got an 04 Expedition with the Triton and I was admittedly dreading doing this fix. I appreciate you guys breaking it down step by step. Its always a process, but now it looks like it will just be a weekend or so. Thanks again.
Thank you Ron, Appreciate your information.
Great heads-up on the two gaskets when removing the 6 bolts underneath
Great video, just bought the 5.4 expedition and it’s in real good shape, but that exact point is leaking, looks I’ll be able to get to know my truck real well fixing those gaskets! Hopefully that back wall is still intact, thanks for the help!!
Thanks. Just got a leak from the thermostat housing on my Crown Vic.....I think I'll just replace the whole intake and save myself having to do it twice. lol I take it that the Dorman intakes are junk.....without brass inserts for the coil pack screws, etc.....so it would be better to get a Ford Intake....?? Keep up the great videos.
Very good explanation of a Triton motor intake issue---I learned a lot Ron!
great video thanks, this help me save costs with keeping my old truck on the road
Awesome video I've been looking for this exact situation because mine is doing this exact thing a lot of people told me it was the rubber over the back of the hood and I tested that theory and it didn't Pan out so thank you very much
Great info and sad I didn't find this video back when I was starting my DIY trip through a '02 5.4L intake manifold job. Used an SKP since it met OEM and had good reviews unlike Dorman, added grey RTV gasket maker where there were gaskets and even put it inbetween the plastic plenum and aluminum piece along with tightening the bolts for it (they weren't tight and caused a leak).
Thank you for the video I have a 03 Expedition with the same problem I wish I come to you but I live in NC
Great video. I just wanted to add that I have a 98 F150 5.4 Triton V8 with the two valve configuration. My intake manifold is all aluminum and does not have those two secondary gaskets held on with a 3 - 8 m m v
98 Expie 5.4......our aluminum intakes are more valuable than our cats to the 1999+ Series plastic intake crowd. 😂 320k - 1 owner truck. I'm just now having to replace my intake gaskets...not bad for a 25 yr old truck.
Realized I was having this issue. After thinking it was oil (dummy) I took apart my valve cover to replace that gasket... but it was fine. I eventually realized it was dirty coolant, thought maybe the intake man gasket was leaking but after close inspection I saw it was the thermostat housing where some run out was coming from... popped the top housing unit off and noticed no gasket or gasket maker seal was there. Someone most have replaced the therm before I bought it didn’t seal it and got frustrated and sold the thing because it was low power from the spark wells being drowned lol.
So 2000 f150 xlt 4.6L thermostat seal missing, leaking coolant under pressure down the drivers bank flooding the spark wells.
Fix was to add a gasket sealant to housing. Easy
For the looks of it it sems like ill be doing some repair on my 01 f150 5.4,i see some coolant coming out from the corner close to the thermostat,not alot but we will se,good vid by the way.
And thank you for the information you are amazing. looking at a 2001 f150 that is misfiring. But ran great before that.
When you replaced gasket, did it take care of the misfire problem. Mine just happened and curious to see if that resolved when you replaced gasket?
Thanks for the video lesson, real helpful. My triton is leaking coolant left side under the heater tube. Sick of making repairs on used vehicles but new ones are too $$. Interesting on the jb weld 'rigging' - I'm just going with a whole new manifold from Amazon since I have to take the whole thing off anyway.
Thank you Ron!
Had a slow leak in the “V” in my 2002 Ford 5.4l. Appreciate the video. Now to decide if I want to attempt this. Lol
It's very time consuming. But can be done. If you have another vehicle, and don't mind parking your truck for like 1 aweek, then go for it. I say a week because I work, but if you're retired, then it should take about 2 days to complete. Day one will be taking stuff off, day 2 will be putting everything back.
@@sgt.hollowpoint6968 we got rain coming this week, but the week after I’m going for it. Going to be very Meticulous and label as I go...lol
Hey Ron Thanks for sharing this video with me. i have e350 5.4 triton also. i did an overhaul on the engine. I now find oil mixing with water but my heads have been checked at the machine shop and they are ok. what do you recommend?
Cool video , really informative I have a 2008 Ford F-150 STX, I noticed that the top of the intake housing that's seen in the video that it definitely have something to do with thermostat on the driver side so the top and facing it to the left with the hose connector I'm noticing a lot of build-up antifreeze out through the top left side of top motor
Great stuff guys
For anyone wondering - our Mitchell labor guide says 4.8 hours to do this job so it's somewhat labor intensive. If you have the aid of an air compressor and pneumatic tools you can cut the time down quite a bit.
Do not use air tools on installing.
Thanks for your 5.4 intake video focusing on the crossover gaskets. I have my 5.4 Triton intake out cleaned and ready to be reassembled. I got the intake manifold gasket from Autozone yesterday and I have a Dorman unit which has o ring-type gaskets at each opening instead of the strip with the blue raised rubber seals. Can I successfully install the new strip with the blue raised rubber seals ? If so, do I have to remove the orange Dorman oring-types? Or do I return the gasket I have and wait a couple days for new orange seals? Thanks.
Hello Ron, I truly appreciate your videos and sound advice. I have a 2003 Expedition 5.4 Triton, I have replaced the thermostat about a year ago, recently the water pump and intake manifold. After a few minutes driving I get a spike on the temp gauge for about 10 seconds before returning to the normal position, thankfully it remains there for the journey. I have also replaced the reservoir cap to no avail. It seems to point to the thermostat, any other ideas before I change out again? Also wanted to get your opinion on a 'failsafe' version of the thermostat.
Yes all is true!! My 02 Mustang GT 5speed car has 4.6 every where this man said leaks happen are truly correct!! My car leaked for years but leaked very little , finally got the nerve up n money saved for parts if needed to do job!!! No biggy Just took longer to clean up the engine for new gaskets then the actual work
I watched your video and it was about the same thing that was wrong with my moms truck. Thank for the helpful videos. Keep up the good work.
This may be a silly question but ...I think you have a good knowledge of these vehicles with so much hands on experience. I have a 2003 F250 5.4 L - 2 valve with 118,00 miles and the engine has not given me a single issue, not even a check engine/ code! It has started up everyday since except for a fuel pump failure a few years back. With this intake seemingly so prevalent, is it only a matter of time it fails and do you recommend replacing the gaskets as a preventative measure? It's usually good not to repair unless its broke, but I will if necessary. Just glad it's not a 3 valve! Also thanks for an informative video!
Great video Ron...pretty much confirmed my suspicion that the intake manifold will need to be replaced. My 5.4 is leaking coolant from the passenger end of the coolant crossover. You indicate this is a "suplementary" video, but I can't find the video you reference that shows removal and (I hope!) replacement of the intake manifold. Pointer?
Good info. Thanks to you and your son.
I have a 2008 p71 with this very problem. I am planning to replace the manifold. However, I want to make sure I get the proper one. I contacted ford and they no longer carry a different one for the civilian or police. I was told by the parts guy the newly available one is civilian. I also know there is a Dorman replacement available but read bad reviews both in quality and loss of performance on the p71. there is a Ford Racing M9424P46 Intake Manifold but it says that it is for 1999 to 2004. I am kind of stuck on how to proceede I do not want to invest all the time and money replacing this intake only to find out I lost some performance or it will not match up correctly. I wish there was a way to talk to you by phone for quick advice. Keep putting out these great videos Thank you they are very helpful.
love when people know how to speak clearly
good job buddy
I just performed this repair with JB weld mine had this exact issue the wall that holds the gaskets in place had been blown out broken from the inside I carefully built a wall back up using JB weld and then a small Dremel tool to very carefully cut out the valley for the gaskets let it cure very well and it worked well but I took my time and did it carefully and it's still working well today
That was thorough. Thanks
Thanks for posting! Helps alot on my problem! Great! Job.....
Two years ago, I traded in an 01 f350 5.4. The engine had a misfire in #3 cylinder that had no code. I also noticed the coolant reservoir darkening. Not knowing what to do, I took it to the dealer and they recommended a new engine. I believe the intake gasket was the real problem all along. The odd thing I thought was the engine wasn't burning coolant, but the oil was getting in the coolant system.
Great video
Thanks for the great informative video. Do you have the torque specs for the crossover bolts? I cant fing them anywhere. Thanks
Very informative now I know what I got to do
My 2000 f150 5.4 i bought new shot craps at the cross over at 285,000 miles. I installed the Dorman 615-188 myself a yr ago and to be very honest,i was impressed with it..no problems. As for the self tapping screws i like them better. Before installing i put a dab of grease on them and using a 1/4inch drive ratchet put all the screws in all the way and backed them out...made installing brackets and coil packs easy...no reason to over tighten them. If people are stripping them out,they probably don't need to do the install. I used a 1/4 ratchet inch drive on all of it. *Do Not Use Air Tools*Follow torque and sequence instructions that come with it. I also used the thermostat that came with it. I noticed No loss of power-No noise...couldn't tell any difference between it and OEM....runs smooth. The old plugs had 7000 miles on them but installed a new set while everything was off and easy to get to. The bypass tube under the old intake looked good so i left it alone,they are Not easy to remove even with the old intake off. You Will Need a torque wrench that measures in inches and pounds...*Do Not Skimp On This*...and play it by feel. All brackets,fuel rails,air intake fit perfect. I spent all day taking it all off separating it all on the bench and cleaning what went back on and cleaning around all the ports surface. Spent 1/2 day the next day putting it all back together taking my time. If you try to hurry...don't do this job...you will probably be disappointed in the end results. The intake was 112 $ at o'riley's plus tax and comes with instructions and torque diagram.
Hey Ron, I have the same problem. I had quite a bit of coolant not in the actual intake ports but in the smaller rectangle shaped ports. Should I get as much of that coolant out as possible? Don't really want to leave it in there unless it is suppose to be there. Thanks for your help
Is it possible to reinstall the crossover bolts face up? I was just working on my spark plugs (P0300 cylinder 3,4, and 7 leak). Not sure that its coolant leaking into the wells as it's just oily smelling sludge... but I'm about out of DIY fixes until I take it into a shop
Great video, thanks
Hey Ron, just had this issue with my truck the motor hydrolocked and I have coolant in cylinder 1, I’m trying to order the thermostat housing seal that you showed in the video and can’t find it for the life of me, not sure if I’m looking for the wrong thing or if I have to make my own gasket, this video is very very helpful and I thank you very much, keep up the great work👍🏻
Some seals are not available any longer.
I've got a leak on that cross over and the d rings don't come with the manifold gasket set so where do I get them what are they called and a part number the video was a lot of help thank you
Thanks for the Vid. And from what I got out of it. You said that I don't have to pull the WHOLE manifold to cure the leak from the crossover for 5.4 Triton ? Being that I noticed I don't have an apparent exhaust leak. Passed emissions and all. But, I do see a small leak of coolant to the opposite side of the thermostat in the front. And I'm getting that the bolts can be removed from the top and bottom of the crossover ?
What do you typically charge to replace the head gasket and plugs on that exact truck ?
Question: Can a leaking intake gasket cause coolant to leak into the #4 cylinder on a 2000 ford 5.4 two valve engine. It cranks and runs bit after a minute or so light grey smoke comes out of the exhaust, watch your vids alot, you are the best I've seen on the internet..Thanks..
Thank you To teach me how I can fix my own car
@ronwilliams do you have part numbers for the gaskets used I can not seem to find the gaskets for under the thermostat.
Hey how you doing sir enjoy the video. I am currently here because I just discovered that I evidently have a leak on my upper intake manifold on the passenger side in between the crossover and the intake. I’m not sure if I should go ahead and order an intake and have one on standby or order the gaskets and plan on it being a gasket issue.? Do you have any thoughts or opinions on that? Or recommendations? Additionally the big bulky part underneath of the intake manifold does that actually serve any purpose at all or is it simply just a spacer/dead area? I ask because mine is all cracked across the front
The new gaskets showing in your video Ron---what brand are those please?
Do u recommend RTV gasket sealer when applying a new gasket jus for extra safety around the thermostat housing an heater core thanks I'm fixing my crown Victoria with same intake manifold 4.6
I have the same problem on my 02 Ford Expedition got water when I pull up first coil on passenger side front and when I gun it a little you can hear antifreeze sounding tru from the inside dash board so do I need to rebuild the engine or call it a loss from Dallas Tx.
This Sunday, tomorrow I am going to see if they forgot to torque down the manifold bolts properly, what else can it be ?
RON THANKS FOR VIDEO Can you please tell me best replacement manifold besides DOORMAN I hear bad things about them thanks from Michigan
I have a 2003 Ford Expedition 5.4 2v. I replaced all my coil packs today. I had my engine rebuilt around 25k miles ago, I put a brand new motorcraft intake on at that time. I noticed antifreeze in spark plug 5 & 6 holes. I tightened the thermostat housing bolts down as they didn’t seem properly torqued. Could this be resolution, or would it make it worse as far as antifreeze leak goes?
Does the upper intake manifold gasket replacement kit come with the gaskets for the lower or do you got to get those separately is my initial question
Good day! Can you recommend what type of oil to use in a 1990 460 big block? As well as the differential please. Greatly appreciated!
Hay Ron what if there is oil in the coolant and tried changing the oil cooler and gasket to what do you know about it
Hey Ron what state are you located in I have a 03 Ford expedition the same issues and need it fixed soon as possible
Wow! Great video. We have to do this repair to one of our own service trucks. We are throwing Bar's Leak into it for now and it seems to have slowed the leak but not stop it. We're carrying gallons of water with the truck to ensure no overheating plus monitoring the ECT on our scanner. It's difficult to take this truck out of service but we'll need to soon. Thank you so much for this informative video.
On the part of Ford engineers - yeah! We've never been a fan of Ford engineering. We love working on GM vehicles. I can't tell you how many times we've wanted to give a swift kick to the nuts of a Ford engineer and say "What in the FUCK were you thinking?" LOL
hello great video
I recently started having misfire and I removed one of the coils off and found a good amount of coolant in there over the spark plug is that a sign that the intake manifold gasket needs replacing? btw my oil is clean there is no over heating or smoke from the exhaust its is a Infiniti 2009 fx50 with over 200k miles
thank you
They fixed this later on. On my 11' Expedition 5.4, you can change the crossover tube gaskets on the engine.
Lol little to late...
How about on a 2010 lincoln navigator 5.4 liter. Do you have to take off the intake manifold to take the Engine Coolant Crossover Pipe off, To get to those gaskets?
Did the '98 4.6 have this issue too? I smell coolant in the exhaust but it fails the blown head gasket test.
Have you ever tried to drill out the bolts that are for the cross over and retap new in from the top saving from having to take the whole thing off?let me know what you think about this idea please
Thank you
Good information thanks
I wish I was able to go to your shop. I had that exact problem but they took me to the cleaners and had to replace instead of doing the welding and fixing the part.
I no longer fix them its replacement only because to many of the repairs came back broken. So dont blame the shop always
much appreciated ! intake is off and im making sure i dont make a mistake not going far enough with 'while we're at it' additional replacements etc.
hmmm i might want to just get a new manifold for insurance i dont need to do this ALL OVER AGAIN should the plastic manifold fail or has an invisible defect