Hi all! Sorry for the wordy post. Short version is I have a #2 misfire and everything appears to be working properly, but suspect the thing is just worn out and needs rebuilding/replacing.
1997 GMC Sierra C1500
5.0 with 188k
Quick history:
Bought the truck needing intake manifold gaskets...
Hey, any luck with this? I’ve had similar problems with mine after intake manifold gaskets and spider mpfi upgrade. Still showing lean and random misfire. It’s a work in progress and likely has vacuum leaks I’m trying to find. But, I also pulled out the new spark plugs and they’re all fouled...