Originally Posted by Jordan927

Don't discount that EGR code. A plugged EGR passage or improperly functioning EGR system can cause all sorts of issues.

130 is a little low on compression...150-160 is considered good 200K

Have you done a wet compression check and a leak down check? Wet will tell you if the rings are getting bad and a leak down, dry then wet, will tell you if the valves are not sealing properly. Basically...if you get leakage when dry and none when wet your rings are bad...if you get leakage when dry and again when wet, your valves are not sealing. Also if the compression goes up significantly when wet you have bad rings.

Also look into plugged fuel filter, it can put out correct pressure, but restricted flow can cause this issue.

I would also clean the crap out of that engine, could be pretty carbon-ed up.
Seafoam or similar through the intake. Likely wont fix the issue...buy not a bad idea.

I have a friend with an 02 silverado 2500 with a 6.0L. It pulls very well, so there should be no issue.

Originally Posted by Jordan927

Hate to say it...but if you want a good tech for a GM vehicle, you need to go to GM.

I know they're 100 bucks an hour...but sometimes you get what you pay for. Plus they have access to all TSB's and diagnostic equipment for those vehicles.

I've seen mechanics labor over an issue for days that the GM techs fixed in a forenoon. Not to say that other mechanics aren't highly skilled, its just that the guys at GM generally only have GM's to deal with, and they know the quirks.


Finding a really good mechanic is a PITA.

Originally Posted by 1FastBrick

Maybe in your area they are good but that's not always the case.

Good mechanics are always hard to find.


I have worked on and fixed several cars that have been to different shops including different dealers in the area and they still couldn't fix it.