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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
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38.8K
OEM Thermostat Temperature
Today at 2:46 PM
mrrsm
Drivetrain
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1.1K
13.3K
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1.1K
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13.3K
NEED HELP
Tranny slipping and surging. 4WD switch flashing
Apr 4, 2024
filthyfingers
Vortec 5.3L V8
392
5.2K
Threads
392
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5.2K
Catalytic converter replacement options EPA vs carb
Feb 18, 2024
Mike534x
LS2 6.0L V8
40
839
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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T
5.3 loses power at speed/stalls
tommyt
Mar 9, 2014
Replies
7
Views
857
Mar 10, 2014
The_Roadie
C
4x4 problem
chevman
Mar 2, 2014
Replies
20
Views
2K
Mar 7, 2014
chevman
C
Weird 4wd issue goin on.
Darkrider_LS
Mar 4, 2014
Replies
25
Views
2K
Mar 7, 2014
Darkrider_LS
gas smell
gkrenzer
Aug 22, 2012
Replies
18
Views
15K
Mar 7, 2014
Matt
C
2004 I6 in 2002 LTZ
Cward
Mar 1, 2014
Replies
5
Views
775
Mar 3, 2014
jsheahawk
My efan setup (Montana/Venture efans)
Mooseman
Mar 19, 2012
2
Replies
79
Views
11K
Mar 3, 2014
Sparky
Q
2003 4.2L Hemorrhaging Oil in Cold Temps
Quadzilla724
Feb 8, 2014
Replies
15
Views
2K
Feb 28, 2014
IllogicTC
A
Time for a new truck - need advise
ahimon
Jan 10, 2013
Replies
27
Views
2K
Feb 27, 2014
dmanns67
K
torque specs for thermostat bolts
kctrailblazer
Feb 26, 2014
Replies
4
Views
12K
Feb 26, 2014
kctrailblazer
K
Would I feel any difference with a K & N air filter !!!!!!
Malo
Jan 17, 2014
2
Replies
43
Views
3K
Feb 26, 2014
blazinlow89
M
2002 Trailblazer 4wd stumper.
Michigantb
Feb 8, 2014
Replies
3
Views
2K
Feb 25, 2014
IllogicTC
T
Evaporative System Monitor
tr23
Feb 24, 2014
Replies
4
Views
758
Feb 24, 2014
IllogicTC
S
Intermittant 900 rpm Idle, P0171 Code & Reduced Fuel Mileage
scarecro
Oct 30, 2012
Replies
7
Views
5K
Feb 22, 2014
IllogicTC
Engine Died after driving through deep snow. Service Brake System message.
duluthsnow
Feb 22, 2014
Replies
10
Views
1K
Feb 22, 2014
duluthsnow
4X4 prob and now no forward or reverse...help
duluthsnow
Dec 17, 2013
Replies
10
Views
5K
Feb 22, 2014
The_Roadie
I
Reduced engine power in 02 tb after replacing computer, pedal, throttle body
Imgonnacry
Feb 21, 2014
Replies
8
Views
856
Feb 22, 2014
KNBlazer
FPR Vacuum Hose Part Number? 2004 4.2 TB
KNBlazer
Feb 21, 2014
Replies
8
Views
1K
Feb 22, 2014
KNBlazer
T
help 4 wd issue
trucker85
Feb 20, 2014
Replies
3
Views
792
Feb 20, 2014
IllogicTC
H
2006 transfer case issue
h-m
Feb 1, 2014
Replies
25
Views
4K
Feb 20, 2014
The_Roadie
High Revving After Spinning Tires
DenaliHD66
Feb 6, 2014
Replies
15
Views
2K
Feb 19, 2014
NJTB
N
K
SeaFoam
kdannyk
Feb 19, 2014
Replies
4
Views
1K
Feb 19, 2014
Justin_kyllo
J
o2 sensor
DarkBlazer02
Jan 30, 2013
Replies
9
Views
2K
Feb 18, 2014
IllogicTC
R
TCC flutter Advice?
r-charger
Feb 9, 2014
Replies
2
Views
2K
Feb 18, 2014
r-charger
R
B
Stuck in 4LO (4WD service light on and no light on TCCM)
battleborn
Feb 14, 2014
Replies
11
Views
3K
Feb 18, 2014
IllogicTC
D
Front Differential R & R
djhallenb
Feb 12, 2014
Replies
8
Views
1K
Feb 17, 2014
MOJoe2002
M
First Timer....Odd rear end question?
zephyr429
Feb 17, 2014
Replies
9
Views
915
Feb 17, 2014
IllogicTC
Knocking, Octane
DenaliHD66
Feb 15, 2014
Replies
14
Views
1K
Feb 16, 2014
IllogicTC
S
torque app?
Stayathomedad
Feb 12, 2014
Replies
13
Views
1K
Feb 14, 2014
Texan
M
Running a little too warm
MichEnvoyGuy
Jan 31, 2014
Replies
5
Views
1K
Feb 7, 2014
IllogicTC
Feels like 4lo when in 2hi (Cold conditions only)
autocad712
Feb 2, 2014
Replies
22
Views
2K
Feb 5, 2014
denvern
D
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