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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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C
04 TB EXT and POOR gas mileage
convincer253
Apr 4, 2012
2
Replies
60
Views
6K
Apr 6, 2014
gmcman
A
At Peak Performance
andy702252
Apr 4, 2012
Replies
24
Views
2K
Apr 8, 2012
03envoy
9
Preventative Maintenance
98tsiawd
Apr 4, 2012
Replies
9
Views
1K
Feb 15, 2013
The_Roadie
S
While I'm in there...Replacing Alternator.
steamcorners
Apr 4, 2012
Replies
21
Views
3K
Apr 6, 2012
MAY03LT
G
Fuel Injector Removal?
Gordo
Apr 6, 2012
Replies
11
Views
2K
Apr 7, 2012
Ace1875
@
Too many Electrical problems
@Bravada
Apr 7, 2012
Replies
9
Views
2K
May 5, 2012
Joshtradamus
J
M
POP while accelerating now limp home
MRaymond1
Apr 8, 2012
Replies
12
Views
2K
Apr 10, 2012
fadyasha
Engine ticking, possible to quiet it down?
Mike534x
Apr 9, 2012
2
Replies
43
Views
5K
May 13, 2013
Mike534x
V
Throttle Body Spacer?
VoyDude
Apr 9, 2012
Replies
3
Views
1K
Apr 9, 2012
4wVoy
M
Troubleshooting MAF Sensor on 2006 4.2
mb522
Apr 9, 2012
Replies
3
Views
1K
Apr 9, 2012
The_Roadie
8
tpms light flashes and stays on!
808trailblazer
Apr 10, 2012
Replies
12
Views
5K
Apr 16, 2012
Envoy09
Stupid Headlamp washer nozzle
fadyasha
Apr 11, 2012
Replies
15
Views
3K
Apr 13, 2012
Jkust
J
p0526
Me007gold
Apr 11, 2012
Replies
4
Views
2K
Aug 6, 2012
Dad-O-Matic
9
02 Envoy, update PCM with 2005+
98tsiawd
Apr 11, 2012
Replies
6
Views
2K
Apr 12, 2012
The_Roadie
4
Rocker arm ratio?
400Magnum
Apr 11, 2012
Replies
0
Views
801
Apr 11, 2012
400Magnum
4
Pcm torque specifications
03envoy
Apr 12, 2012
Replies
8
Views
1K
Apr 13, 2012
Ace1875
V
i have a leak idk where its coming from
Valetman23
Apr 12, 2012
Replies
2
Views
902
Apr 13, 2012
Valetman23
V
N
finally got the vibration gone ...... i hope
nbenjamin
Apr 13, 2012
Replies
3
Views
969
Apr 20, 2012
CaptainXL
C
idles rough and has a hesitation
LordBear
Apr 13, 2012
Replies
17
Views
3K
Apr 17, 2012
rppoit
Plans for more power. Suggestions?
fadyasha
Apr 15, 2012
Replies
9
Views
1K
Apr 19, 2012
Pittdawg
tune and tranny
borretje
Apr 16, 2012
Replies
9
Views
1K
Jun 24, 2012
Pittdawg
Changed spark plugs today.
Me007gold
Apr 17, 2012
Replies
4
Views
2K
Apr 20, 2012
filthyfingers
Check Engine Light Steady
keepontruckin
Apr 19, 2012
Replies
5
Views
1K
Apr 20, 2012
keepontruckin
M
Help Interpret my Freeze-Frame Data from P0171 Code
mb522
Apr 19, 2012
Replies
2
Views
4K
Apr 19, 2012
Wooluf1952
4
Cylinder head intake runner dimensions?
400Magnum
Apr 19, 2012
Replies
5
Views
1K
Apr 25, 2012
limequat
Supersparkz Review
03envoy
Apr 20, 2012
2
Replies
42
Views
6K
Jun 18, 2012
RayVoy
slight Transmission fluid leak?
ConeKilrAutoX
Apr 20, 2012
Replies
4
Views
1K
May 24, 2012
ConeKilrAutoX
K
MagnaFlow universal
kjkim93
Apr 20, 2012
Replies
2
Views
1K
Apr 20, 2012
kjkim93
K
N
ac and
Nizar
Apr 21, 2012
Replies
4
Views
979
Apr 21, 2012
CaptainXL
C
E
K&N CAI decrease in MPG? & How to get more MPG overall
edjosh3rd
Apr 21, 2012
Replies
12
Views
2K
May 2, 2012
Mooseman
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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
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