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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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Only 3000 miles on oil, but One year old. Change filter too?
May 7, 2024
Realism
Drivetrain
New
1.1K
13.3K
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1.1K
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13.3K
2004 Buick Ranier CXL 4.2 Transfer Case?
Sunday at 9:24 PM
mrrsm
Vortec 5.3L V8
New
394
5.2K
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394
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5.2K
0
Runs rough couple miles after starting
Friday at 2:17 PM
04envoyxlv8
LS2 6.0L V8
40
839
Threads
40
Posts
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
3
Views
204
Yesterday at 8:40 PM
Mike534x
P0495 code
Dmflash
Oct 22, 2023
Replies
9
Views
388
Friday at 6:28 PM
Mooseman
Is this amount of differential play normal?
l008com
Apr 23, 2024
Replies
2
Views
87
Apr 23, 2024
l008com
S
Got stranded
Stuntmanmike1977
Apr 8, 2024
Replies
13
Views
387
Apr 22, 2024
Mike534x
4.2L Dieseling sound
zaid3ssaf
Nov 13, 2020
Replies
20
Views
2K
Apr 19, 2024
Mooseman
What happens if you overfill your engine oil?
flyboy2610
Apr 13, 2024
Replies
4
Views
170
Apr 14, 2024
flyboy2610
W
Defective Battery or did my TB fry it?
wormwood1978
Mar 23, 2024
Replies
4
Views
204
Mar 23, 2024
mrrsm
W
Thermostat Preventative/Proactive Replacement
wormwood1978
Jan 19, 2024
Replies
13
Views
669
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
198
Mar 20, 2024
Mooseman
M
2005 Trailblazer Starting Issues.
Mothman
Feb 17, 2024
Replies
7
Views
563
Feb 29, 2024
Realism
Please Help Identify Broken Sensor
Btorres1977GContractor
Feb 18, 2024
Replies
1
Views
274
Feb 18, 2024
mrrsm
C
Worth picking up an extra engine?
c good
Feb 3, 2024
Replies
6
Views
421
Feb 9, 2024
c good
C
New York State inspection fail
MPB
Feb 6, 2024
Replies
11
Views
494
Feb 8, 2024
AmpOverload
Bound to happen sooner or later
Ilikemy3s
Feb 7, 2024
Replies
5
Views
346
Feb 7, 2024
mrrsm
Whirring buzz from under the hood, take a guess
Realism
Jan 13, 2024
Replies
12
Views
642
Feb 5, 2024
Realism
K
2002 Trailblazer airbox question
KWG2005
Feb 4, 2024
Replies
3
Views
228
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
369
Dec 30, 2023
Mooseman
C
Do the 5.3 Envoys and Trailblazers have the "Tow/Haul" feature?
c good
Dec 14, 2023
Replies
6
Views
520
Dec 14, 2023
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
c good
Dec 8, 2023
Replies
6
Views
361
Dec 9, 2023
TollKeeper
S
Slight hesitation/vibration at idle
seadoojetski
Dec 5, 2023
Replies
10
Views
516
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
701
Nov 15, 2023
Know1else
K
NEED HELP
Possible bad fuel pump (confirmation needed)
ghost_leader07
Nov 8, 2023
Replies
28
Views
1K
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
440
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
496
Oct 30, 2023
Sparky
Confirmed: Clearing codes re-enables Cruise Control
RiverGuy
Aug 3, 2023
Replies
4
Views
836
Oct 14, 2023
AmpOverload
Low Voltage to Transmission Pressure Switch
Firebyrd91
Oct 9, 2023
Replies
0
Views
319
Oct 9, 2023
Firebyrd91
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