Good ideas, but already tried-on my THIRD dealer service department, GM Tech Support acts like they're stumped, it's always the same code"#4 cylinder misfire". I've done a search, there are a lot of similar problems posted(CD player related???), but not a lot of solutions listed. I'm askin...

I know I'm coming in late on this, but has anyone tried a different oil filter-you may be having an oil drainback problem, causing low oil pressure on a cold start. Another scarier possibility could be loose piston wristpins-a lot of GM engines are infamous for noisy cold starts that quiet down as t...

I need all of the Vibe owners to post their "check engine" light problems and solutions-namely the apparently unsolvable cylinder misfire codes-I have made 7 dealer trips, so far they have changed plugs,2 ignition coils,2 #4 fuel injectors, and a complete cylinder head-none of it has helpe...