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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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R
Idling Rough
rkachampion
Apr 16, 2013
Replies
2
Views
803
Apr 17, 2013
rkachampion
R
A
oem or aftermarket cat?
agon3279
Apr 16, 2013
Replies
5
Views
1K
Apr 17, 2013
jonbo2002
J
Found exhaust leak
gmcman
Apr 14, 2013
Replies
6
Views
1K
Apr 15, 2013
gmcman
T
Knock and crunch from front of engine
TequilaWarrior
Mar 7, 2013
Replies
9
Views
1K
Apr 15, 2013
TequilaWarrior
T
D
PCM Tune = poor gas mileage
DragonTX
Jan 2, 2013
2
Replies
41
Views
6K
Apr 15, 2013
SEMIJim
S
Idling Rough Lately
DenaliHD66
Jan 9, 2013
2
3
Replies
94
Views
6K
Apr 14, 2013
DenaliHD66
S
Can't rotate Idler Pulley, but belt can
ShadowClutch
Apr 11, 2013
Replies
10
Views
2K
Apr 13, 2013
ShadowClutch
S
Question Regarding Coil Pack wiring
ConeKilrAutoX
Apr 10, 2013
Replies
1
Views
679
Apr 13, 2013
CaptainXL
C
Need advice - Fix or replace (long and rambling)
silverunicorn
Mar 23, 2013
Replies
17
Views
1K
Apr 12, 2013
signalnc
S
Cruise control down hill jerk help needed
jeffro312
Apr 9, 2013
Replies
21
Views
9K
Apr 10, 2013
TGFB87
T
Tuning for DFCO
Shdwdrgn
Apr 9, 2013
Replies
0
Views
1K
Apr 9, 2013
Shdwdrgn
M
Easter Sale!!!!!
marshall@pcm
Mar 28, 2013
Replies
3
Views
754
Apr 9, 2013
marshall@pcm
M
Fuel pressure test port
gmcman
Apr 6, 2013
Replies
7
Views
1K
Apr 7, 2013
mrphoenix80
M
X
Stock PCM
xtremeskier97
Apr 6, 2013
Replies
12
Views
1K
Apr 7, 2013
Wooluf1952
Locked
Anyone interested in buying my old PCM4less tuned PCM?
ConeKilrAutoX
Apr 3, 2013
Replies
5
Views
2K
Apr 5, 2013
ConeKilrAutoX
T
P1515 code SES and REP lights
tk_427
Apr 1, 2013
Replies
3
Views
1K
Apr 4, 2013
tk_427
T
C
Break in oil??
CASHKJ
Apr 1, 2013
Replies
8
Views
1K
Apr 3, 2013
Robbabob
MPGs?
groundshock
Mar 21, 2013
2
Replies
48
Views
3K
Apr 3, 2013
meerschm
DIY air intake with IAT sensor
Shdwdrgn
Dec 9, 2011
2
Replies
76
Views
16K
Apr 2, 2013
ShadowClutch
S
S
intermittent stalling
signalnc
Mar 26, 2013
Replies
29
Views
2K
Apr 1, 2013
gmcman
Possible dead alternator....recommendations for a new one..??
davenay67
Mar 25, 2013
Replies
4
Views
840
Apr 1, 2013
davenay67
Happy to report
Sir ffeJ
Mar 30, 2013
Replies
2
Views
723
Mar 30, 2013
Menthol
M
07 Rainier runs cool........maybe
russ455
Mar 30, 2013
Replies
2
Views
749
Mar 30, 2013
Wooluf1952
S
What's going on here? Oilgore
ShadowClutch
Mar 29, 2013
Replies
6
Views
909
Mar 30, 2013
ShadowClutch
S
Need some Advice new Timkin Wheel hubs on there way
jeffro312
Mar 25, 2013
2
Replies
76
Views
4K
Mar 29, 2013
CaptainXL
C
T
Another Thermostat change
Toivo
Mar 28, 2013
Replies
2
Views
902
Mar 28, 2013
Menthol
M
P0442 and tick tick tick
Daniel_832029
Mar 22, 2013
Replies
12
Views
2K
Mar 28, 2013
Daniel_832029
J
Water pump & fan clutch tools
jaguarjoe
Mar 24, 2013
Replies
7
Views
2K
Mar 28, 2013
jaguarjoe
J
A
Motorad 413-192 - air relief or not
AbsoluteZero
Mar 14, 2013
Replies
9
Views
1K
Mar 27, 2013
AbsoluteZero
A
loud fan , no power and doesnt want to go above 40
LordBear
Mar 21, 2013
Replies
12
Views
2K
Mar 26, 2013
LordBear
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Engine & Drivetrain
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