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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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2002 TB running great
Wednesday at 11:29 AM
movietvet
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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40
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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C
BG Products E.P.R. Seems to be helping oil consumption
c good
Mar 17, 2024
Replies
0
Views
110
Mar 17, 2024
c good
C
What happens if you overfill your engine oil?
flyboy2610
Saturday at 5:18 PM
Replies
4
Views
123
Sunday at 11:03 AM
flyboy2610
W
Defective Battery or did my TB fry it?
wormwood1978
Mar 23, 2024
Replies
4
Views
147
Mar 23, 2024
mrrsm
S
Got stranded
Stuntmanmike1977
Apr 8, 2024
Replies
6
Views
161
Apr 8, 2024
TollKeeper
T
NEED HELP
Please, help accessing front 3 bolts on oil pan in order to remove it.
Tatsun
Mar 20, 2024
Replies
2
Views
170
Mar 20, 2024
Mooseman
K
2002 Trailblazer airbox question
KWG2005
Feb 4, 2024
Replies
3
Views
204
Feb 4, 2024
Blckshdw
J
How to remove battery tray 2004 TB LS?
John04TB
Oct 5, 2023
Replies
2
Views
251
Oct 7, 2023
Mooseman
Please Help Identify Broken Sensor
Btorres1977GContractor
Feb 18, 2024
Replies
1
Views
252
Feb 18, 2024
mrrsm
Low Voltage to Transmission Pressure Switch
Firebyrd91
Oct 9, 2023
Replies
0
Views
286
Oct 9, 2023
Firebyrd91
Alternator compatibility between years
gmcman
Jan 15, 2023
Replies
2
Views
298
Jan 16, 2023
gmcman
C
05 sierra Stuck in 2nd
ColoradoKid512
Mar 4, 2023
Replies
2
Views
300
Mar 6, 2023
Mooseman
Bound to happen sooner or later
Ilikemy3s
Feb 7, 2024
Replies
5
Views
302
Feb 7, 2024
mrrsm
P0495 code
Dmflash
Oct 22, 2023
Replies
6
Views
303
Oct 23, 2023
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
c good
Dec 8, 2023
Replies
6
Views
332
Dec 9, 2023
TollKeeper
C
BG EPR oil treatment?
c good
Dec 29, 2023
Replies
3
Views
333
Dec 30, 2023
Mooseman
FUEL FILTER for 2005, 4.2, 4WD
Petnatcar
Apr 30, 2023
Replies
3
Views
353
May 1, 2023
Petnatcar
K
Can a ignition cylinder be recorded to an old key without the previous ignition cylinder?
Kimmie
Jul 21, 2022
Replies
2
Views
357
Jul 21, 2022
mrrsm
H
2006 trailblazer rear a/c line replacement
htseat2000
Oct 8, 2021
Replies
1
Views
379
Oct 8, 2021
Mooseman
Beat auxiliary cooler to get
02trailblazerLS
Dec 12, 2020
Replies
1
Views
393
Dec 12, 2020
Mooseman
C
Worth picking up an extra engine?
c good
Feb 3, 2024
Replies
6
Views
394
Feb 9, 2024
c good
C
T
2003 Trailblazer LT Ext cranks but wont start no fuel pressure
TrailblazerLTExtended
Oct 4, 2023
Replies
6
Views
403
Oct 4, 2023
Mooseman
W
Exhaust Pipe to Manifold Gasket
wormwood1978
Aug 15, 2023
Replies
5
Views
403
Sep 11, 2023
wormwood1978
W
M
E-Fan issue
MichEnvoyGuy
Nov 6, 2023
Replies
5
Views
407
Nov 8, 2023
Mooseman
New York State inspection fail
MPB
Feb 6, 2024
Replies
11
Views
436
Feb 8, 2024
AmpOverload
Transmission compatibility of pre '06 models
gmcman
Jul 8, 2023
Replies
2
Views
448
Jul 9, 2023
gmcman
C
Do the 5.3 Envoys and Trailblazers have the "Tow/Haul" feature?
c good
Dec 14, 2023
Replies
6
Views
449
Dec 14, 2023
Mooseman
B
NEED HELP
Question 🤔
Bronsonc1856
Aug 4, 2021
Replies
2
Views
457
Aug 4, 2021
Redbeard
R
C
Fluid Service interval for Transfer case?
c good
Nov 13, 2022
Replies
3
Views
457
Nov 14, 2022
c good
C
C
Piston slap or rod knock?
c good
Feb 3, 2023
Replies
2
Views
461
Feb 5, 2023
littleblazer
Where can I get the TCC PWM eliminator kit?
gmcman
Oct 29, 2023
Replies
3
Views
463
Oct 30, 2023
Sparky
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