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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
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2.5K
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38.8K
2002 TB running great
Yesterday at 11:29 AM
movietvet
Drivetrain
New
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
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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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40
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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Confirmed: Clearing codes re-enables Cruise Control
RiverGuy
Aug 3, 2023
Replies
4
Views
762
Oct 14, 2023
AmpOverload
H
Signal wire shows 12 volts... ignition off
halfawhole again
Jul 27, 2023
Replies
6
Views
567
Jul 28, 2023
TJBaker57
SOLVED!
Loose, Rattle-y Heat Sheilds
l008com
Jul 15, 2023
Replies
24
Views
1K
Sep 11, 2023
JayArr
C
SOLVED!
Clunking from rear end
Cdrum
Jul 11, 2023
Replies
14
Views
2K
Jul 22, 2023
pell
P
Transmission compatibility of pre '06 models
gmcman
Jul 8, 2023
Replies
2
Views
448
Jul 9, 2023
gmcman
New exhaust manifold
corky
Jul 4, 2023
Replies
4
Views
554
Sep 12, 2023
JayArr
T
Loss of power
tiffi221986
Jun 29, 2023
Replies
7
Views
517
Jun 29, 2023
TollKeeper
P
Where did the oil go?
pell
Jun 11, 2023
Replies
11
Views
589
Jun 17, 2023
Mooseman
P0305, AWD failure, and loss of cruise control
HMan_Rainier
May 29, 2023
2
Replies
54
Views
2K
Jul 20, 2023
mrrsm
M
4.2 motor swap
mechanic rich
May 23, 2023
Replies
8
Views
522
Sep 7, 2023
Mooseman
F
I6 Blown head gasket
Fishnbob
May 16, 2023
Replies
8
Views
527
May 16, 2023
Fishnbob
F
FUEL FILTER for 2005, 4.2, 4WD
Petnatcar
Apr 30, 2023
Replies
3
Views
352
May 1, 2023
Petnatcar
Check my logic - Part 2!
TollKeeper
Apr 7, 2023
Replies
25
Views
922
Jun 19, 2023
Mooseman
P
Diagnosing and prep for harmonic balancer replacement 4.2 L I6
pastorbud
Apr 1, 2023
Replies
29
Views
2K
Apr 12, 2023
mrrsm
SOLVED!
Intermittent stops cranking during start attempt
movietvet
Mar 19, 2023
2
Replies
76
Views
3K
May 23, 2023
movietvet
The Ultimate "while your in there" overhaul
Daniel644
Mar 17, 2023
Replies
9
Views
575
Mar 23, 2023
Mooseman
Wheel bearing hub assembly
Dmflash
Mar 8, 2023
2
Replies
68
Views
4K
Nov 28, 2023
far eastan
F
C
05 sierra Stuck in 2nd
ColoradoKid512
Mar 4, 2023
Replies
2
Views
300
Mar 6, 2023
Mooseman
Tbss intake injectors and throttle body upgrade then I lost 2nd gear 😔
Yeagamyster04
Feb 10, 2023
Replies
3
Views
509
Feb 11, 2023
Yeagamyster04
C
Piston slap or rod knock?
c good
Feb 3, 2023
Replies
2
Views
461
Feb 5, 2023
littleblazer
Trying to Decode my Error Code(s)
l008com
Jan 30, 2023
Replies
21
Views
1K
Feb 18, 2023
Mooseman
S
knocking noise from transmission and stalling
santon
Jan 30, 2023
Replies
9
Views
2K
Feb 1, 2023
mrrsm
E
Doing DoD delete on 05 Envoy 5.3, which cam do I choose?
EnvoyMan
Jan 27, 2023
Replies
3
Views
1K
Jan 27, 2023
EnvoyMan
E
Transmission replacement
corky
Jan 23, 2023
Replies
6
Views
576
Jan 27, 2023
aaserv
Filters arrived, have to go back under the TB
movietvet
Jan 18, 2023
Replies
23
Views
1K
Jan 24, 2023
movietvet
Alternator compatibility between years
gmcman
Jan 15, 2023
Replies
2
Views
298
Jan 16, 2023
gmcman
The fluid purge has started & ended.
movietvet
Jan 15, 2023
Replies
10
Views
743
Jan 16, 2023
movietvet
SOLVED!
4.2 cam phaser 03 Tb Ext LT
mattpaul89
Jan 13, 2023
Replies
12
Views
1K
Feb 7, 2023
mrrsm
2002 Trailblazer 2WD/AWD/4HI and 4LO
movietvet
Dec 28, 2022
Replies
3
Views
563
Dec 28, 2022
movietvet
C
Envoy lurches slightly forward when in Park and starting.
c good
Dec 28, 2022
Replies
7
Views
603
Dec 29, 2022
Mooseman
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