77mercury77
TYF Newbie
- Joined
- Jan 27, 2016
- Posts
- 27
- Reaction score
- 16
So GM has a TSB for Trucks with AFM made before 2010 to replace the valve cover with a new revision, add an AFM shield in the oil pan and to do a hot piston soak with their top cleaner.
I have done both the valve cover and the AFM shield on my 2010 escalade about 25K miles ago however I am still getting oil and sludge on my spark plugs in cylinders 1 and 7.
Any one here have experence with the performing piston soak? Is there an issue with only doing the cylinders that have oil fouling? Any tips on the process? I have the solution coming in and im gonna do it this weekend as a last attemp before doing more serious work.
I have done both the valve cover and the AFM shield on my 2010 escalade about 25K miles ago however I am still getting oil and sludge on my spark plugs in cylinders 1 and 7.
Any one here have experence with the performing piston soak? Is there an issue with only doing the cylinders that have oil fouling? Any tips on the process? I have the solution coming in and im gonna do it this weekend as a last attemp before doing more serious work.