Engine Performance problem
1998 Chevy Silverado V8 Four Wheel Drive Automatic 146000 miles
I have changed dist cap, rotor, sparkplugs(@ 100,000), wires, fuel filter, and cleaned maf sensor. I didn't have codes a first but, then service engine light came on and code said cylinder 5 misfire. I pulled the sparkplug and the electrode was built up with black crusty gunk on one side and white and clean on other side. Plug in cylinder 3 was also built up. I changed the plug (5) and added seafoam cleaner to gas. Local Autozone guys said it could be a clogged injector, bad plug, or I may need to change injector spider. I have run a tank of gas with seafoam and Idle seems to be better at times but not always. It is worse when cold. Acceleration was rough but seems smoother after I cleaned MAF sensor Is there anything I missed? Thanks, Mike
have the same problem?
Wednesday, May 13th, 2009 AT 8:05 PM