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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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PO442
18 minutes ago
Stuntmanmike1977
Drivetrain
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Re-using Torque converters
Tuesday at 10:44 AM
JayArr
Vortec 5.3L V8
New
394
5.2K
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394
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5.2K
M
Runs rough couple miles after starting
Today at 10:43 AM
MD_Envoy_Driver
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
Fluid Service interval for Transfer case?
c good
Nov 13, 2022
Replies
3
Views
469
Nov 14, 2022
c good
C
New York State inspection fail
MPB
Feb 6, 2024
Replies
11
Views
465
Feb 8, 2024
AmpOverload
B
NEED HELP
Question 🤔
Bronsonc1856
Aug 4, 2021
Replies
2
Views
463
Aug 4, 2021
Redbeard
R
Transmission compatibility of pre '06 models
gmcman
Jul 8, 2023
Replies
2
Views
459
Jul 9, 2023
gmcman
M
E-Fan issue
MichEnvoyGuy
Nov 6, 2023
Replies
5
Views
430
Nov 8, 2023
Mooseman
T
2003 Trailblazer LT Ext cranks but wont start no fuel pressure
TrailblazerLTExtended
Oct 4, 2023
Replies
6
Views
428
Oct 4, 2023
Mooseman
W
Exhaust Pipe to Manifold Gasket
wormwood1978
Aug 15, 2023
Replies
5
Views
428
Sep 11, 2023
wormwood1978
W
C
Worth picking up an extra engine?
c good
Feb 3, 2024
Replies
6
Views
415
Feb 9, 2024
c good
C
Beat auxiliary cooler to get
02trailblazerLS
Dec 12, 2020
Replies
1
Views
400
Dec 12, 2020
Mooseman
H
2006 trailblazer rear a/c line replacement
htseat2000
Oct 8, 2021
Replies
1
Views
383
Oct 8, 2021
Mooseman
FUEL FILTER for 2005, 4.2, 4WD
Petnatcar
Apr 30, 2023
Replies
3
Views
367
May 1, 2023
Petnatcar
S
Got stranded
Stuntmanmike1977
Apr 8, 2024
Replies
13
Views
367
Apr 22, 2024
Mike534x
K
Can a ignition cylinder be recorded to an old key without the previous ignition cylinder?
Kimmie
Jul 21, 2022
Replies
2
Views
366
Jul 21, 2022
mrrsm
C
BG EPR oil treatment?
c good
Dec 29, 2023
Replies
3
Views
354
Dec 30, 2023
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
c good
Dec 8, 2023
Replies
6
Views
345
Dec 9, 2023
TollKeeper
P0495 code
Dmflash
Oct 22, 2023
Replies
6
Views
333
Oct 23, 2023
Mooseman
Bound to happen sooner or later
Ilikemy3s
Feb 7, 2024
Replies
5
Views
327
Feb 7, 2024
mrrsm
Alternator compatibility between years
gmcman
Jan 15, 2023
Replies
2
Views
310
Jan 16, 2023
gmcman
C
05 sierra Stuck in 2nd
ColoradoKid512
Mar 4, 2023
Replies
2
Views
309
Mar 6, 2023
Mooseman
Low Voltage to Transmission Pressure Switch
Firebyrd91
Oct 9, 2023
Replies
0
Views
306
Oct 9, 2023
Firebyrd91
Please Help Identify Broken Sensor
Btorres1977GContractor
Feb 18, 2024
Replies
1
Views
266
Feb 18, 2024
mrrsm
J
How to remove battery tray 2004 TB LS?
John04TB
Oct 5, 2023
Replies
2
Views
259
Oct 7, 2023
Mooseman
K
2002 Trailblazer airbox question
KWG2005
Feb 4, 2024
Replies
3
Views
218
Feb 4, 2024
Blckshdw
T
NEED HELP
Please, help accessing front 3 bolts on oil pan in order to remove it.
Tatsun
Mar 20, 2024
Replies
2
Views
191
Mar 20, 2024
Mooseman
W
Defective Battery or did my TB fry it?
wormwood1978
Mar 23, 2024
Replies
4
Views
180
Mar 23, 2024
mrrsm
What happens if you overfill your engine oil?
flyboy2610
Apr 13, 2024
Replies
4
Views
159
Apr 14, 2024
flyboy2610
C
BG Products E.P.R. Seems to be helping oil consumption
c good
Mar 17, 2024
Replies
0
Views
132
Mar 17, 2024
c good
C
Is this amount of differential play normal?
l008com
Apr 23, 2024
Replies
2
Views
70
Apr 23, 2024
l008com
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