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CPB's latest activity
CPB
replied to the thread
My first GMT800, 01 2500HD LQ4
.
I'm not sponsored by Dorman, but maybe I should be. The right rear exhaust manifold bolt had long broken off in the head prior to my...
Apr 21, 2026
CPB
replied to the thread
Inconsistently odd fuel delivery issues (I THINK?)
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I would measure fuel pressure if you're leaning towards it being a fueling issue.
Apr 21, 2026
CPB
replied to the thread
My first GMT800, 01 2500HD LQ4
.
Tried this a few weeks ago. That's a broken extractor. Took it to a local exhaust shop and they said, "You can't get those out!" I...
Apr 12, 2026
CPB
reacted to
AuroraGirl's post
in the thread
Features deleted by GM (gmt800 life cycle)
with
Like
.
found this on the service data 2003: A Component Comparison from the Previous Year • Exhaust gas recirculation (EGR) system has...
Apr 12, 2026
CPB
replied to the thread
Features deleted by GM (gmt800 life cycle)
.
Yeah, I just know when buying an exhaust manifold for a 6l 2500 that the EGR opening disappears when looking at the 2004 MY. Earlier...
Apr 9, 2026
CPB
reacted to
stutaeng's post
in the thread
Features deleted by GM (gmt800 life cycle)
with
Like
.
That was a GOOOOOD thing! Everyone and their cat HATE EGR systems...LOL
Apr 9, 2026
CPB
replied to the thread
Features deleted by GM (gmt800 life cycle)
.
Not sure if on the list, but the EGR was deleted in 2004. (At least true for the LQ4, not sure how accurate on other engines.)
Apr 9, 2026
CPB
reacted to
INW-Iron-Steel's post
in the thread
My first GMT800, 01 2500HD LQ4
with
Like
.
Nice truck and cool thread! I see you're using the "beefy" Dorman RD stuff. I'm not typically a fan of Dorman, but the marketing got me...
Mar 28, 2026
CPB
replied to the thread
My first GMT800, 01 2500HD LQ4
.
"It's not stupid if it works" Added a Dorman 800-196 check valve to the supply line for the fuel rail. -Dorman 800-196 -Female 3/8"...
Mar 28, 2026
CPB
replied to the thread
2004 Tahoe dies randomly while driving.
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Regarding fuel pressure, just to echo the others. There is a spot on the rail for attaching a fuel pressure gauge. I'd route that...
Mar 27, 2026
CPB
reacted to
Tonimus's post
in the thread
2004 Tahoe dies randomly while driving.
with
Like
.
Welcome to the group. Hope you get it figured out. You should definitely start with a fuel pressure check as ORVietVet says. You may...
Mar 27, 2026
CPB
reacted to
ORVietVet's post
in the thread
2004 Tahoe dies randomly while driving.
with
Like
.
Welcome to the forum, from Oregon. Needs to get a fuel pressure test
Mar 27, 2026
CPB
replied to the thread
99 1500 4.8 oil separator options
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I use the radium kit for these trucks. It's got a nice bracket and a ball valve to bypass the can in case you forget to drain it during...
Mar 21, 2026
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