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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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OEM Thermostat Temperature
Friday at 8:07 PM
Mike534x
Drivetrain
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13.3K
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13.3K
NEED HELP
Tranny slipping and surging. 4WD switch flashing
Apr 4, 2024
filthyfingers
Vortec 5.3L V8
New
393
5.2K
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393
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5.2K
Rate this Used Airfilter
Today at 6:57 AM
Ilikemy3s
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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Is this amount of differential play normal?
l008com
Today at 5:47 AM
Replies
2
Views
14
Today at 6:31 AM
l008com
S
Got stranded
Stuntmanmike1977
Apr 8, 2024
Replies
13
Views
284
Yesterday at 7:26 PM
Mike534x
4.2L Dieseling sound
zaid3ssaf
Nov 13, 2020
Replies
20
Views
2K
Friday at 11:17 PM
Mooseman
What happens if you overfill your engine oil?
flyboy2610
Apr 13, 2024
Replies
4
Views
133
Apr 14, 2024
flyboy2610
W
Defective Battery or did my TB fry it?
wormwood1978
Mar 23, 2024
Replies
4
Views
155
Mar 23, 2024
mrrsm
W
Thermostat Preventative/Proactive Replacement
wormwood1978
Jan 19, 2024
Replies
13
Views
562
Mar 23, 2024
wormwood1978
W
T
NEED HELP
Please, help accessing front 3 bolts on oil pan in order to remove it.
Tatsun
Mar 20, 2024
Replies
2
Views
178
Mar 20, 2024
Mooseman
C
BG Products E.P.R. Seems to be helping oil consumption
c good
Mar 17, 2024
Replies
0
Views
113
Mar 17, 2024
c good
C
M
2005 Trailblazer Starting Issues.
Mothman
Feb 17, 2024
Replies
7
Views
523
Feb 29, 2024
Realism
Please Help Identify Broken Sensor
Btorres1977GContractor
Feb 18, 2024
Replies
1
Views
256
Feb 18, 2024
mrrsm
C
Worth picking up an extra engine?
c good
Feb 3, 2024
Replies
6
Views
398
Feb 9, 2024
c good
C
New York State inspection fail
MPB
Feb 6, 2024
Replies
11
Views
442
Feb 8, 2024
AmpOverload
Bound to happen sooner or later
Ilikemy3s
Feb 7, 2024
Replies
5
Views
309
Feb 7, 2024
mrrsm
Whirring buzz from under the hood, take a guess
Realism
Jan 13, 2024
Replies
12
Views
599
Feb 5, 2024
Realism
K
2002 Trailblazer airbox question
KWG2005
Feb 4, 2024
Replies
3
Views
207
Feb 4, 2024
Blckshdw
2002 TB 4.2 died at stop & immediate restart
movietvet
Oct 22, 2023
2
Replies
51
Views
2K
Jan 19, 2024
movietvet
C
BG EPR oil treatment?
c good
Dec 29, 2023
Replies
3
Views
336
Dec 30, 2023
Mooseman
C
Do the 5.3 Envoys and Trailblazers have the "Tow/Haul" feature?
c good
Dec 14, 2023
Replies
6
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456
Dec 14, 2023
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
c good
Dec 8, 2023
Replies
6
Views
335
Dec 9, 2023
TollKeeper
S
Slight hesitation/vibration at idle
seadoojetski
Dec 5, 2023
Replies
10
Views
483
Dec 9, 2023
mrrsm
Wheel bearing hub assembly
Dmflash
Mar 8, 2023
2
Replies
68
Views
4K
Nov 28, 2023
far eastan
F
NAPA High Mileage Oil?
l008com
Oct 5, 2023
Replies
4
Views
647
Nov 15, 2023
Know1else
K
NEED HELP
Possible bad fuel pump (confirmation needed)
ghost_leader07
Nov 8, 2023
Replies
28
Views
971
Nov 14, 2023
mrrsm
B
No crank no start isn't it lovely
bennieRohde
Oct 24, 2023
2
3
Replies
83
Views
2K
Nov 10, 2023
bennieRohde
B
M
E-Fan issue
MichEnvoyGuy
Nov 6, 2023
Replies
5
Views
413
Nov 8, 2023
Mooseman
NEED HELP
P0171 on my 04 Trailblazer LT won't go away
ghost_leader07
Sep 24, 2021
2
3
Replies
117
Views
8K
Nov 6, 2023
mrrsm
Where can I get the TCC PWM eliminator kit?
gmcman
Oct 29, 2023
Replies
3
Views
469
Oct 30, 2023
Sparky
P0495 code
Dmflash
Oct 22, 2023
Replies
6
Views
308
Oct 23, 2023
Mooseman
Confirmed: Clearing codes re-enables Cruise Control
RiverGuy
Aug 3, 2023
Replies
4
Views
767
Oct 14, 2023
AmpOverload
Low Voltage to Transmission Pressure Switch
Firebyrd91
Oct 9, 2023
Replies
0
Views
292
Oct 9, 2023
Firebyrd91
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