Anyone had trouble with loss of compression on cylinder #4?
'02 with 57k miles. Has an occasional pinging sound like spark knock under acceleration. Octane boost did not help. A compression check revealed 210 psi on cyls 1-3 and 100 psi on cyl 4! Loss of some power is evident.
It has also been steadily consuming more oil. Now, I need to put in about 1.5 quarts between 3000 mile changes.
Check this site out. It will give you a list of what could be wrong. http://www.autozone.com/UseCase,S001/UserAction,viewSimpleDiagInfo/Parameters,info/getInTheZone.htm 1. Click on "sounds" 2. Click on "pinging" 3. Click on "acclerating" that will give a list of items to check out. Good luck.