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I did the sea foam treatment. It has helped out but I still get the noise form one cylinder. Spark plugs are next then some more marvel mystery oil in the crankcase for one more oil change along with a compression check to locate the offending cylinder. Next step is after that is a new set of...

I have been watching the videos on youtube Ibet it will show where the leak is. How much do I use. A full can or a third? I read a post where a guy did it 3 times from the same can with a rest period of about 15 mins between each treatment?

I even checked the egr tube thinking it was cracked but it wasnt. It even makes the valve noise while cold at initial startup even afer idiling for about a minute. When I drive away the valves begin to rattle. then settles down after warmup then will come back under load or heavy acceleration. I...

After doing some research on here it seems like the place to start. Im currently searching for a seafoam supplier in the Ft Worth area. Hopefully auto zone or oriellys carrys it Thanks.

I currently own a 2000 xlt 5 litre AWD and have having some problems with valve noise. Rattles like crazy on 87 not so bad on 89 octane. Been using synthetic oil since I owned it. Has 167k miles. Other than that no problems. Tried the water injection method of removing carbon from the cylinders...