Solving Engine Performance Issues (Part 1) - EricTheCarGuy
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- เผยแพร่เมื่อ 24 มิ.ย. 2012
- Visit me at: www.ericthecarguy.com/
See Part 2
• Solving Engine Perform...
Vacuum leaks
• How To Find A Vacuum L... +
Voltage leaks
• Finding Ignition Volta...
Power Balance
• How To Perform A Power...
Compression testing
• How To Perform a Compr...
Leak down testing
• How To Perform A Leak ...
I get a lot of questions via email and over at the forum about the steps to take when you encounter a performance issue like my Subaru's hesitation issue and I often feel like I sound like a broken record when I cover the basic steps that I cover when encountering a situation like that. My main point here is that if you have a performance problem and you're going to throw parts at the problem start with the basics before you to off and start replacing sensors that you suspect are a problem, if you don't have evidence of a faulty sensor then don't start there start with the simple tune up items and check for vacuum leaks and air leaks as I've shown here and I believe you'll have better results and save yourself some money in the process. In short the rule of KISS applies, Keep It Simple Stupid.
If you have questions about your own engine performance issues head over to my website and either ask the search function or ask the forum, we'd be happy to help.
www.ericthecarguy.com/forum/de...
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ETCG
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Man its 2020 and I will always go back to your videos to educate my self on cars
… 2023..
Cleaning the MAF sensor on an older car can really help performance. I just cleaned the MAF sensor in my mom's 99 Outback (very similar to the one in the video) and the engine runs noticeably smoother.
Hey Eric, Tanner here.
I know you probably have 2500 other comments like this, but you sure know how to make a helpful video. I used, in particular, the spark plug section to help me with changing the spark plugs in my '95 Range Rover 4.0se. Now, I'm not a total idiot with cars but that doesn't mean I'm particularly mechanically inclined. Your channel has given me some solid confidence to tackle my vehicles mechanical needs. Anyways, back to the point. I switched out my spark plugs today and man, I sure can tell that my car is happier. A little surprise i found is that the starting of my car seems to have improved noticeably, which I was happy to see. The performance of the car itself also seems to have been improved. I suppose that's what happens when you get rid of 20 year old plugs, eh? Needless to say, I'm a happy guy!
Anyway, thanks for the videos and for the confidence to pop my hood. Tomorrow I plan to flush my power steering fluid. Wish me luck!
My 2000 F 150 was running bad, really bad. Chugging, stalling, jerking, I mean bad. It hadn't been maintained at all. Watching your videos inspired me to try a couple of things myself. I changed plugs and plug wires and installed a new fuel filter. These three things have more than doubled my fuel economy and overall performance is great. I'm a believer in maintenance now, a changed man and I owe it all to you and these great, easy to understand and informative videos. Keep up the good work.
have you cleaned the mass air flow censor ? it totally helps my car
Hey. What is your vote on marvel mystery oil for rough idle?
I have watched so many videos for diagnostics and you have been the best for helping with describing the whole thing step by step and why to do so. I ended up subscribing to your channel and definitely recommend your videos to everyone.
Hey Eric, being a Subaru Tech for ten yrs, the very first thing was to clean the throttle plates and yes, NGK are the plugs.. I even used them in my Chry LHS. GREAT video..
Giving a new meaning to “always wear safety glasses” 👓 😂 lol
The most annoying kind of car repair: "I fixed some things...but nothing seems to be any better".
I agree, ignition performance issues take a whole other level of patience especially when the car isn't running right and time constraints apply.
Thanks for good tips Eric! I have a 1996 Mazda 323 (I believe it's called Mazda Protege there in the States). 1,5 liter 16 valve DOHC engine. I had some idle issues with it and significant decrease in power lately. Now I replaced the old fuel filter and cleaned the MAF- sensor. While taking the air intake housing off to get access to the fuel filter I found out that the housing had huge cracks in it, so unmeasured air was getting into the mix. Fixed it and now it runs smoothly.
okay, so i dont use the ac so i removed the belt from the compressor on my subaru 93 legacy with ej22, does that belt run anything else that i need it to be replaced back? thanks
One tip for installing spark plugs is to gently lower them with your socket wrench (or torque wrench and socket) and set the plug on the threads until its just about to catch but don't tighten it yet just turn the plug counter clockwise very slowly (like loosening it) and wait till you hear or feel a tiny "tink" and that's the very top of the thread of the spark plug dropping in line with the very top of the head's thread for the spark plug. Once you hear that tiny "tink" start tightening it to torque spec and you'll never cross up or bugger the threads since pretty much seems like most if not all heads on cars these days are aluminum. (not sure if I have ever seen any car without aluminum heads)
Tyler Finvold thank you! I do the same thing never stripped or crossthreaded a sparkplug because of it
Interesting... Thank you!
I usually use a piece of hose. Works a lot better.
I do the same except I do not bother turning them left. I start tightening by hand right away but just use my fingertips so no real force is applied. Then spin them til snug and that is when the socket wrench comes into play for final tightening. Crush down the crush washer until snug and then maybe a 1/4 or 1/8 turn to be tight.
The timing belt slipped a notch on my Suby. Mine hesitated a few seconds from stop. I had a bend harmonic balancer key, and that would cause the belt to jump. The key hole was beaten beyond repair. The problem got worse.
Thanks for your very good videos. I have the exact same symptom on Subaru Impresa 2008 (front wheel drive), I begin to suspect it is a Subaru's factory problem, I thought of changing ignition advancement, but it is fixed
Thanks man. I've had the same issues. Changing my sparks back to the NGK today and if that doesn't work then my filter.
very educative..yu hav educated me alot..thank yu ericthecarguy
Eric, Autolites don't belong in Fords any more than they belong in a Subaru. Fords have run Motorcraft since the 70s, when they sold Autolite to Allied Signal. Autolite is an aftermarket plug that has many specifications over many different car manufacturers. They're not OEM on anything I'm aware of. But I agree, NGK would have been a better plug than an Autolite.
Do your home work Motorcraft spark plugs are made by Autolite.
True story✔
thank god for this, I've had the same problem in a suzuki jimny , no check engine light and scanner fuel trims are not overly helping or other diagnostic from the scanner. Even the suzuki service centre has no clue
START WITH THE BASICS - THANK YOU SO MUCH !!! could not put off any longer the worsing hesitaion/engine performance on my 130K Elantra so i google ( EricTheCarGuy -hesitation). BOOM -this excellent video quickly tells me: hum, maybe I should change those plugs after 80k miles - problem solved! So from thinking maybe my Elantra finally gave up the ghost to pure joy (from getting passed/horned by gramma to being able to challenge hot rodders). Big fan for about 10 years now, you are the go-to-guy for us car DIY enthusiasts - THANKS A HUNDRED TIMES & 100 MORE TIMES IN THE FUTURE !!!!!
Jealous of that fuel filter location. In my 06 Sti its attached to the fuel pump in the tank and is a huge pain to change
+Lucien Gauvin My cousin got the same car and he asked me to changed it i feel your pain.
01 Dodge Durango also has the fuel filter in the tank...I'm not going to mess with it as long as no problem arises requiring the replacement!
there is 2 one on the pump one in line
Just like me ,,with a hyundai getz
transmission vs. engine = stall test. If stall RPM is too high, transmission. If stall RPM is too low, engine.
hi eric. i have a 1991 plymouth laser. its got a oil system problem. cold start the guage
needle goes right to the right buried. oil seems to be pooling on the valves and head.
so what happens is oil goes into the intake through the pcv valve. happens here and there not all the time. could this be the oil pump relief valve sticking? or a clog on the
cylinder head oil holes? let me know what you think thanks
I have a problem that i am not sure how to diagnose. I have a manual car, when ever i am driving with my foot off the clutch and also off the gas pedal, the car pushes forward then pull backs(something like a jerked motion) as the rmp nears 1200. whats wrong?
i noticed something about the spark plugs that you missed, they are blowing the compression pressure through the spark plug.
you can tell by the brown witness marks going up the ceramic part of the plug after the metal part of the spark plug.
it happens to all spark plugs eventually, heat, vibration and pressure causes the seal to break down.
If that is the case then the center part would be loose right ?
clean the headlights, it will add +5hp
put in led bulbs and your get a extra 55 hp :)0, add wipers on the headlights and your beat every car in the world , oh yea lol
Smoked light covers, 600 HP to the wheels!
nope - the car just looks faster.
Liam Rowe and a K&N sticker on the body. Forgot about that one.
Wow this is great info, plz tell me more!
I have a 98 gmc conversion van. it was running fine then when I started it later it was running really rough and the exhaust smells like gas and engine light came on. could the plugs or wires make it do that. should I give it a tune up first?
hey Eric, I have a 2012 Sentra. when the car is cold and I shift to 3 gear (stick), I can hear a click sound.. but when is in normal temperature it does not sound. what is it? is it normal?
You should probably takeoff the greasy gloves before you get it the car and touch everything! Just a thought..
You should always gap the plugs, makes a difference in how well the plug fires. Don't forget anti-seize.
yea anti- seize too bad others dont use it makes changing the plugs or any other parts a dream!!!!!!!!!!!!
XC if your spark plugs are platinum or iridium and the threads are coated in a silver finish then there is no need to use anti-seize as they are already coated in a property that restricts them from being a pain in the ass the next time you take them out! lol
NGK plugs don't need anti-seize, they state this on their website, and the plugs are pre-gapped most of the time. You can check this with a feeler gauge.
Nick Leijenhorst Even if they are "pre-gapped", you should always check anyway. Also every engine requires a different gap, so the gap set by NGK may not be correct. Anti-seize is very important for aluminum heads to prevent thread galling and reduces the chance that you'll break the plugs during removal.
XC
NGK don't require anti-seize or gapping. Just make sure you get the correct spark plug no. for your car and they'll be fine.
Hi..i have a question i have a 2006 scion tc ...now..the NGK....the threads are lil longer than. The botch spark plugs....now i bought those not the NGK. Would that affect the car
Hi I have a 2003 Mazda Protégé Speedsport and I seem to have a massive lag in power between 3k and 5k and it has lots of power following, I've been troubleshooting and had no luck so far, any suggestions?
It shocked me how new spark plugs make a HUGE difference in performance.
Its like he says, they pretty much build the engine around the spark plugs (or at least their detonation model).
ya if you don't have any spark it won't burn any fuel
Keys879 just like we built the A-10 around a Gatling gun
NGK or Bosch spark plugs work the best for foreign cars.
Bosch has been straight Garbage and overrated by experience, NGKs in other hand are amazing
midos67 Bosch is trash.
Bosch or NGK Plugs are both good for foreign makes. Though NGK is a higher quality plug than Bosch. My favorite plug for my Chevy truck though is AC Delco
I would hope so AC Delco is OEM for GM vehicles
My Chevy Truck is a GM vehicle
Hello Eric, I have a 1997 Acura CL 3.5 L when I come to a stop at a light, upon coming to a complete stop my car jerks, when the light turns green and I give it some gas it jerks again and then drives off good. Do you think its a transmission issue?
I replaced plugs and coils on my '05 Falcon yesterday. Runs beautifully now and sounds better.
wtf is that thing hanging off the back of his head
Pony Tail 😇 my little pony my little pony. ..
super duper lol
Love those dirty latex gloves. Those mean hard work. Stay dirty!
@Mr Hansen 🤔🗡️
Hi Eric, I have a 2005 Mazda 6 2.3l 5 speed A/T with 150000 km, the car hesitates when I put the pedal to the metal in any gear including Neutral and Park, the car struggles to go uphill. The car has not thrown any codes, I changed the Spark plugs, air filter is clean. Which direction should i go from here?
Hi Eric. How do I know when my car horns are going bad? Horns usually come in pairs and I think one of them isn't workin. When I hit the horn the sound just doesnt sound right anymore. How do I check if they are shot or it could be just a voltage drop? thanks
that pony tail tho ...
Pony tail -- Man bun-- ??? LOL...MAYBE A LITTLE FEMININE?????
autolite plugs suck all around.
I don't know what part of your ass you pulled that out of but I would not ever use fram spark plugs on an (92-98) i6 motor.
Hi Eric, I have a question how often do iI have to change the spark plugs and park plugs wires? thanks
My friend has the same car as i have
grand am gt 3400 v6
i fixed the side engine mount plate it was split in half on the passenger side and that was ok,
i took it for a run but noticed the the engine seems to jump at take off is it possible that there maybe another mount bad as in Transmission mount. and do you know how many engine mounts are on this Car.
always check your gap on your new spark plugs. why be lazy
+Ernesto
By checking the gaps on modern spark plugs with gap tools you actually harm the spark plug itself
+AtibbsSPARTAN That doesn't make a bit of sense. Leaving your spark plugs at the wrong gap is going to be much more detrimental than double checking the factory gaps. Not sure how you'd harm them by checking.
+Ernesto Stopped doing that after week when working with NGK sparkplugs, they are gapped perfectly, so if the box was never opened, there is no reason to check it.
NGK, Denso spark plugs come in pre gapped. You are not supposed to gap them. I use Denso spark plugs on my camry. So I know.
It does make sense,You don't fuck with the gap on iridium's.
turbo lag LOL
Hi Eric, I changed several spark plugs over a short period of time, and all of them they have an orange crown on the top side, the one the lead plug's. I can't find anywhere why that is happening is it normal? I'm running some ignition advance but other than that the engine is stock.
i have a friend that owns a sj70 suzuki sierra and we cant figure out why but as soon as he changes gears the revs drop and the car stalls and no its not because he cant drive a manual he has owned the car for 3 years now driving it fine any sugestions?
Hmmmm so putting NGKs on my Mercedes was probably a bad idea eh...
Lol! I've learned Japanese cars like Japanese plugs (Denso or NGK) American cars like American plugs (Champion, Autolite) and for German, idk, Bosch?
spookypunky Bosch are for European cars.
That's what I figured
wait so you have to use american made plugs for american vehicles??
fargeeks nah i run ngk in my chevy it runs great ngk is a good brand
dude... lose the pony tail
MrThatsYe why should he?
Stop saying "dude"
thinking the same thing...
MrThatsYe l
I have an esue with my s60 volvo 2001 non turbo. It jerking when i put into higher gear especially when it cold start. The spark plug was change 2 years ago, i had replace 2 of the ignition coil lately, this problem came when the mass air flow sensor had an esue I cleand it but still have the problem. The problem is no engine light no code so I don't know where to fix. Maybe some oil got into the spark plug when the vvt gasket broke and oil runs around the ignition and into the timing belt. The motor run smothly when it idleing and the rpm is normal. I know that there is no esue with the transmition gear. I don't know maybe I will let the pro look at it. Any help out there?
Has code po 300 random misfire -2000 toyota tundra 3.4L. i found two spark plugs are oily wet.
What problem is it? Thank you for your video
Dad always taught me if you've got a problem it's one of 3 things: Fuel-Air-Spark...of course this was before engine computers, but I suppose it still holds true to some degree today and has never left me unable to diagnose my problems.
I had Ngk v power in there n was experiencing a hard start bout to change them to Ngk iridium is that a good idea ??
I just want to comment, Im having the same problem on my subaru hesitation when accelerating, so i have added the injection cleaner it only works for so long and its back to the same thing, hesitation, so should i check the spark plugs and fuel filter, on my 2010 subaru legacy?
hello EricTheCarGuy best plugs for honda city 2001 is there any difference between single tip or multiple tip plugs? IS the multi tips plug fuel effecient or not ??
Hey Eric,
Have a question for you. I have a Nissan Sentra B15 2001, enginge 1800 cc. Is there any specific type of spark plug you recomend for a Nissan? Thanks a lot.
I actually have those spark plugs in my 94 toyota tercel and it runs ok but according to the manual it needs the NGK BPR5EY11( a.k.a. V-POWER ) plugs or equivalent that have a groove in the center electrode.
Hi, I have subaru Impreza 2008 hatchback. Everytime I drove my car uphill the shifting of the engine is delay? And also in running behind.
What do you think the problem or my car and what are the things that I need to check.
Thanks
Hi i have a 2007 gmc envoy denali is doing the same as your car but the obd scanner reads camshafts and crankshaft position sensor correlation bank A, i replace both and the check engine still read the same and the car is not fix can you help please.
watching cars being serviced and servicing cars give's me some stress relieve. it really does. I don't know my self why.
hi big buddy i realize this is a old video , but a question i have for you , i have a automatic 99 dodge neon 2.0 sohc. as i drive it does have power but as i go around a corner then up a hill it slows down then it's like i got to push down on the gas to get it to muster power. then when i have to slow down behind someone going up a hill. the same issue i have to push the gas pedal. we as drivers , are sorta like doctors , you can tell when something isn't quite right. any suggestions . thanks for your time and help., your friend from missouri, mark.
have a 2002 chevy tahoe pressure was about 45psi. change filter and remain about the same. can I assume is the pump or can the fuel regulator have some to do with it. I don't have a check engine light.
I have an H6 3.0 2006 subaru. Spark plugs are MUCH different and a pain in the ass to change (what isn't on an h6) do you have any tips?
just found out my thermostat wasnt really good since i bought the car. and really now i changed it it runs so much smoother. how does that work? cooler engine smoother ride?
I have just changed spark plugs on chrystler mini van and all six plugs are black and smell gasoline, how do I slove this running rich problem and my van is also missing I do not know which cylinder please advise, thanks
i have a 99 eclipse and when i accelerate it will start to go then it seems to choke itself(if that makes sense) then picks up again. sometimes it will stall if i hit the gas quickly and let off quick (like in a parking lot) anyone have any ideas on it?
Mine is only chugging n lugging in 5th gear on my 03 Mach 1. Had all new plugs done and was perfect for about 5 miles. Now back to the same chug n lug in 5 th gear. Any suggestions for next step. Could it be a coil pack? If it is a bad coil will that foul the new plugs I put in? Ran good with new plugs for a cpl miles n now it's lugging again. Ty guys!
I have hesitation in my 2002 Chevy trailblazer. I checked the plugs and they got oil on the threads. do you think its oil leaking into the plugs. I also changed the coils and it helped alot. But now it seems that its miss firing, but im guessing its the cheap coils i got. Plugs are new btw.
I need help i have a 92 acura legend i just replaced my spark plugs but theres still some hesitation im running denso double platinum what should i check next oh by the way my fuel filter hose is leaking
hello sir eric.. i have this 2003 nissan sentra.. it accelarates good but when the moment i shift into 3 to 5 gear it hesitates.. i dont know what to do,, my sentra is fuel injected by the way.. thanks sir,, hoping for your reply..
i have 350 cid in my Chevy Monte SS what do you think is the best spark plugs?
I am having perhaps a similar issue in 2007 Forester. I have no check engine light and historically the car sat for a year or 2 with dirty tank and blocked in tank filter as well as failed in tank strainers. I first changed filter, Strainer and put aftermarket pump, then I used POR15 tank process with second new filter and left side strainer, then new genuine fuel pump module (filter, strainer, pressure regulator, gauge and pump). Along the way I have cleaned injectors twice, new genuine plugs early in the game, air filter and throttle body cleaned several times. I am now leaning to dampers x 2 on fuel rails (they might be a mess based on original tank condition), Electronic throttle pedal (a friend had one that needed cleaning once) or wondering if the Cat has an intermittent blockage (can that happen?). There are times when the car runs very nice and than pretty much out of the blue performance reduces to about half. It never leaves me stranded and even gets up steep hills just relatively slow. If I floor it it does kick down and rev high but on upshift it looses power again. Before I resealed the airbox in the fender that box used to buzz a lot under power loss conditions. Any ideas?
I`ve switched from OEM spark plugs to iridium/platinum ones and my throttle response got better... my top speed tooI`ve also experimented with other iridium spark plugs that aren`t even designed for my engine with the same results....What do you think of this? Should I go back to oem?
where or how would you find out what type of plugs are best for your model of car? and you see alot of cars do you think e3 plugs are worth like the 5 extra dollars over most normal plugs?
Yesterday, I noticed my first and second gear lost power, but when I put in 3rd gear, 4th to 5th, I could feel the energy. Do you know what the cause for it? I checked my engine I saw oil on my spark plug. Do you think this is the cause of first gear and gear no power? I hope you can help me, please.
Yo my man, I Have the 06 Impala 3.5 L what brand should I use and which one is better copper iridium or platinum. And will the spark plug with the fine wire core be better to use for
This was the first video i ever saw with ETCG. Then I was kinda stuck on this channel..
Great videos, great ideas and super informative! Keep it up!
Greetings from Sweden.
Good luck getting those plugs in and out! I changed them on a '98 Outback of mine and the rear two are a PAIN.
Eric, what do advise on how to remove a seized plug? This is for a 2001 civic 1.7 VTEC.
Thank you
Hey Eric. I have a hesitation but not while driving. Only at idle and starting the car. I recently replaced the timing belt with help and spark plugs myself and the vehicle rpms are ridiculous. Any ideas what it could be ? Would a maf make that a problem?
As far as the spark plugs, I had the same issue...I had Autolite plugs in a Mitsubishi (from the previous owner) and it wasn't performing as it should (partially because they were also corroded)...once I changed over to NGK plugs, the difference was almost night and day
hi eric, was just wondering, if your manufacturer recommends a certain type of standard ngk plug, and you instead put in an iridium, is this in fact detrimental? having issues in my rb25det skyline where it feels like (and sounds like) its dropping a cylinder, plugs look average. Had a ton of people say coil packs but they look brand new, so was gonna start with plugs as they are cheaper, even if i do go with iridiums.
I did a fuel pressure test, when I turned the key to the "Run" position I only got 18 or so lbs, then I turn the key off and did it again and it climbed up to the upper 20's the last time I did it got up to the needed 39 lbs. Is that a problem or normal?
Hello sir, can you please help me on this. I have a honda accord LX 1999 170,000 miles on it. Gas mileage problem, full tank just for 200 miles which is more or less 14 miles per gallon. I don't know why still the same like that even i cleaned the intake manifold, aicv,change the spark plugs,wires,rotor. Looks all normal no engine lights on. Only problem is gas mileage. Any suggestions what's wrong on it? Anyone?
Hi Eric. How did you tightened the spark plugs? Did you torqued as the manufacturer suggests or did you indexed the spark plugs (place them with the gap facing the intake)? I have seen people saying that indexing will improve performance and milage. Can you comment on that? Thanks. Greetings from Brazil.
Amazing how much the shop has changed since these Subaru videos
I have seen by replacing just one bad coil is the fix however so many say that all the coil packs should be changed is this not true?
Yep, good to put those ngk's in there....that #3 plug (@ 6:44) looked like it had some carbon tracks down the porcelain too...you probably already know to swap in a new set of wires if you find those carbon tracks.....
when i am going up a hill and i accelerate (especially if i should downshift and dont) i hear a gurgling or rattlesnake sound (doesnt seem like the metal rattle of a heat shield for ex). any ideas?
When you say correct spark plugs ? Do you mean going to the name brand dealer? I got a 99 lexus es300? I took the spark plugs out en on the end of the metal hooks ir had white stuff can i just scrape the white stuff out or what?
When taking the spark plug boot off...did you just yank it off? Or do you need to rotate it and pull? I dont want to ruin my wires on a day I need to get to work
when you says about the rattling machinegun noise you said go watch what video now? can you give a link? thanks
Also had a no click no crank issue replaced starter and starter inhibitor switch mounted above clutch pedal aka neutral safety switch main relay was purchased in 2016 but if electrical which I strongly feel it is due to my engine was rebuilt in April of 2016 and carefully maintain my vehicle I feel it is electrical..car just suddenly died wouldn't take a jump or pop start father in-law hammered my starer breaking it into pieces so had no choice in replacing it....any solutions with that issue would be helpful also.thanks
i had that problem in my mazda and put ngks in it and wow what a difference. and its a 92! good vids keep them coming.
My 2003 Honda Element 2.4l 4 cylinder only has a strainer in the fuel tank. Where do I attach the gauge to read the pressure?
What kind of plugs would be good for my full ton 06 chevy express? I usually just spend the extra bucks to get the better ones but don't know much about specific brands when it comes to them.
Whats the difference between the items in this vid compared to the same symptoms with the problems concerning emissions system.
I have a very similar problem but it only happen during a cold start. already change the spark plug. can u plzzz help, thank u!!!
eric i have the car jacked up. there are 2 allen head screws along side the oil preasure
sending unit. one of these could be the relief valve. but they are not coming loose.
i have to get a mm allen socket right now im using a 5/16. going to try to open them.
they are very tight.