I did a valve cover gasket replacement. Changed all spark plugs and coilpacks. The car is still misfiring. I also just did the timing belt and water pump. Why it's still misfiring?? I'm new to this whole forum thing so bear with me lol. I'm wondering if it would be my cat, fuel pump, fuel filter. Or could it be a sensor?
View 2 RepliesI'm thinking of purchasing a 2001 GLX VR6 Jetta with lots of deferred maintenance (shocks/struts, brakes, exhaust). Most worryingly, the valve cover gasket is leaking oil. The price is pretty low, but is such a beast worthwhile at any price or is it better parted out? And the interior is about as beat up as the mechanical--screeching passenger window motor, broken glove compartment ... Is this thing worth being brought back to life?
View 6 RepliesMy mk4 sat for a while and upon starting up was misfiring. I checked for pvc leaks and didn't see anything but went ahead and cleaned my maf sensor and decided to pull my coils. Cylinder 1 had oil on the tip and around the spark plug which to me spelled out a bad valve cover gasket. I got all the parts to do the inner and outer gaskets and replace the coil and spark plug, however we got a snowstorm and my luck a rabbit got in and ate the wiring on one of my fuel injector connectors.
So went ahead and put on the new gasket, replaced the coil and plug and bought a new Fuel Injector Connector and spliced in onto the Injector "Pigtail'. I double checked everything was reattached properly and let the gasket sealant dry for 24 hours. I went to start it tonight and after trying to turnover it completely cuts out, wont even start up. I'm extremely frustrated at this point and am thinking the rabbit must have gotten to something else unless I did something wrong in the process of repairing.
New valve cover gasket on my 03 VR6 GTI, new plugs, oil filter and cooler seals, new gaskets on the intake manifold and when we started it up . . . .
[URL] .....
It runs rough.
EPC light is on.
Stall at idle.
Runs great at full throttle.
I have a a 02 jetta 1.8 turbo the code po343 came up after new temp sensor,valve cover gasket and full tune up. is it an easy fix the car is misfiring an very hard starting.
View 1 RepliesSo I'll be taking on a project to replace the valve cover gasket on my 2002 Camry V6. There's a bit of leakage through the gasket. And while I'm at it, I'll replace the spark plugs as well. I'm looking for a write up on this project. did a lot of searching but couldn't find anything.
View 14 RepliesHow difficult is it to replace the valve cover gasket on a 2001 Santa Fe with a 2.7? Can I just do the 'front' valve cover? Are there any tutorials with plenty of pictures while doing this?
View 4 RepliesA few days ago I noticed some oil leaking from the left (front) valve cover area and I suspect it's the gasket. Fortunately, I didn't see any leaks from the back cover. It seemed like an easy job to replace the gasket, but as I started to disconnect the wiring, e.g., cam sensor, spark plugs, etc., I can't seem to find a way to remove the black plastic wiring harness 'housing' out of the way.
View 1 RepliesIn order to replace the valve cover do the spark plugs have to be taken off ?
View 12 RepliesHow to replace valve cover gaskets on 2002 430sc???
View 14 RepliesReplaced this gasket that seems to be leaking oil. Looks simple enough, is there anything i should do or know before taking on this job? It's a 2002 Accent GS 1.5L ....
View 8 RepliesI noticed the oil smell that can be associated with a leaking Cam Tensioner Adjustor Seal from my 2003 1.8T Passat a few months ago. The dealer confirmed that it was leaking and that it was covered by my extended warranty since my car was 5 years old and at 70K miles. I had the work done and after I picked up the car I noticed that the oil level was at the top of the hashes not at the top bend like it was when I took it in.
I don't know what caused it to drop to the hashes but I do know that the level has dropped to 3 visible hashes in the little over 1K that has been put on the car since then. I am concerned because in it's first 70K miles the car did not visibly lose a drop of oil.
Any logical cause for this annoying trend, the only thing that changed was that the Cam Tensioner and Valve Cover Gaskets were replaced. Is it possible something else was messed up during the repair?
I've got a 2004 Mazda 6 with the 3.0L V6 & a 5-speed, with about 128k miles.
The car runs fine, but was leaking oil onto the exhaust manifold and so I recently had the valve cover gaskets replaced. the mechanic could not get replacement gaskets from Mazda, and so changed the valve covers themselves also, and consequently needed to replace a couple of hoses that connect to the valve covers.
Since the repair, the car drives fine - acceleration seems normal, I don't notice any performance issues. The CEL is NOT lit.
1) When the car is in neutral, but rolling, the idle consistently bounces back and forth precisely between 1250 & 1500 rpm. This occurs always, and happens whether the gearshift is in neutral or the clutch is depressed. With the radio off I can hear the engine surging when this is going on. As soon as the car comes to a complete stop, the idle immediately drops to the a rock-steady position just below 1000 rpm, as it always has.
2) I assume related to the above, but since the repair my gas mileage has dropped from its usual 18-19mpg to 15.7-15.9mpg as recorded at two fill-ups, and my current tankful is looking to return equally low mileage.
I brought the car back to the shop and the mechanic took the car out for a drive with me, with his computer hooked up while we drove. He found nothing wrong, nothing out of whack, and saw no evidence of any air leaks.
1) Seems strange to me that the valve cover gasket couldn't be obtained, and new valve covers were needed. I want to believe the garage is being straight with me. Is this really plausible?
2) What could cause the idle to behave this way? I understand what a valve cover does (in my earlier years I changed the cylinder head on my old Saturn) and can't figure out how or why changing the valve covers would have an effect like this.
That leads me to conclude this is more likely caused by the new, slightly different hoses attached to the valve cover, but I don't know exactly what those hoses do or why they connect to the valve covers, so I'm stuck here.
I have a 2002 F250 5.4with Air Conditioning. The valve covers are leaking and the gaskets need to be replaced. I am attempting the valve cover gaskets. I was able to get the drivers side cover off with some difficulty. For the passenger side valve cover. There is very little " no" room to get at the bolts. I read somewhere that I may have to drop the engine on that side. I will do that if I have to.
View 5 RepliesI've got a coolant leak here (I wiped away some of it before taking the picture):
Close up
This is the only place I can find coolant leaking and it's running down all the way to the water pump:
When I wiped away from just below the valve cover gasket it flaked right off and it doesn't appear there is any oil mixed in. I changed the oil today and it didn't appear to have any coolant mixed in either.
The coolant doesn't appear to have any oil in it's nice and pink as it should be. I started the car from a cold start and sat and watched the area waiting for it to leak but nothing ever came out, of course.
I know there shouldn't be coolant leaking from this area anyways but I don't know how else to explain the trail pictured. I definitely have a small leak somewhere as I've found coolant on the floor of the garage before.
Do I just replace the valve cover gasket and move on or is there something else I should be concerned with here?
I just noticed what appeared to be an oil leak around the valve cover gasket, which the VW dealer has determined to be a defective cam sensor. Apparently the VW parts distribution center in Wisconsin has 530 of these in stock, so it may be a common failure. This is on a 2010 GTI with 28,xxx miles. Thought the community would like to know.
View 2 RepliesA couple months ago I was hearing a hissing noise under the hood throwing the same code replaced the Valve cover, after there was no issues. Yesterday saw I had CEL and I was throwing P0174 code and there is a similar vacuum leak sound coming from under the hood but the Breather in the valve cover is not sucking in air. The Oil cap comes off but the engine starts to bog, what it could be now?
View 2 RepliesI drive a 2003 24V VR6 GLI
I recently did a valve cover repair to stop the dreaded misfire problem. Well, I'm still waiting on a few things but during the spark plug change obviously some of the oil from where the valve cover leaked previously fell into the pistons because I couldn't really clean it all out efficiently. This seems like it would cause a lot of problems? Do you think I should throw old spark plugs in there and let all the oil burn up before finally replacing them? I really don't want to foul up my brand new NGK's.
Also, I pulled p0300, p0305, p0306, so I am guessing oil in the spark plug/coil pack connection may cause some of the misfires, but do you think two of my coil packs are bad still? My plan was to move them around to see what happens after I get the new parts and am actually running again.
when replacing valve cover gasket, using the cork based one. Do you use any gasket sealant or any kind of silicone or just put it in by its self.
View 5 RepliesI know this isn't the usual ticking of the injectors and I believe it's to fast to be a lifter tapping. I believe it's the camshaft chain hitting against the valve cover. I took the valve cover off and the chain is still tensioned tightly so it makes me wonder what this could be..
View 1 Repliesso I have a 2azfe engine
So there's an oil leak coming from the valve cover gasket (just purchased vehicle dirt cheap with 220k)
found this
Notice all the oil sitting on top of the exhaust mani gasket
In the left(lower) part of the picture it appears to be scraped.
the gasket appears to be newer, I did NOT use a screw driver to remove the valve cover, which is what this appears to have been done..
Can this be sanded down then filled with jb weld, and then regasketed?