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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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O2 Sensor Recommendation please?
Saturday at 10:51 AM
jmonica
Drivetrain
New
1.1K
13.3K
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1.1K
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13.3K
Front diff asjuster bearing
Yesterday at 7:27 PM
Gerbil21
Vortec 5.3L V8
New
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
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
Yesterday at 4:46 PM
Replies
0
Views
39
Yesterday at 4:46 PM
c good
C
W
Thermostat Preventative/Proactive Replacement
wormwood1978
Jan 19, 2024
Replies
12
Views
426
Mar 1, 2024
Mr. Peabody
M
M
2005 Trailblazer Starting Issues.
Mothman
Feb 17, 2024
Replies
7
Views
459
Feb 29, 2024
Realism
Please Help Identify Broken Sensor
Btorres1977GContractor
Feb 18, 2024
Replies
1
Views
218
Feb 18, 2024
mrrsm
C
Worth picking up an extra engine?
c good
Feb 3, 2024
Replies
6
Views
344
Feb 9, 2024
c good
C
New York State inspection fail
MPB
Feb 6, 2024
Replies
11
Views
403
Feb 8, 2024
AmpOverload
Bound to happen sooner or later
Ilikemy3s
Feb 7, 2024
Replies
5
Views
255
Feb 7, 2024
mrrsm
Whirring buzz from under the hood, take a guess
Realism
Jan 13, 2024
Replies
12
Views
542
Feb 5, 2024
Realism
K
2002 Trailblazer airbox question
KWG2005
Feb 4, 2024
Replies
3
Views
177
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
307
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
382
Dec 14, 2023
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
c good
Dec 8, 2023
Replies
6
Views
315
Dec 9, 2023
TollKeeper
S
Slight hesitation/vibration at idle
seadoojetski
Dec 5, 2023
Replies
10
Views
440
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
597
Nov 15, 2023
Know1else
K
NEED HELP
Possible bad fuel pump (confirmation needed)
ghost_leader07
Nov 8, 2023
Replies
28
Views
900
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
378
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
7K
Nov 6, 2023
mrrsm
Where can I get the TCC PWM eliminator kit?
gmcman
Oct 29, 2023
Replies
3
Views
407
Oct 30, 2023
Sparky
P0495 code
Dmflash
Oct 22, 2023
Replies
6
Views
266
Oct 23, 2023
Mooseman
Confirmed: Clearing codes re-enables Cruise Control
RiverGuy
Aug 3, 2023
Replies
4
Views
694
Oct 14, 2023
AmpOverload
Low Voltage to Transmission Pressure Switch
Firebyrd91
Oct 9, 2023
Replies
0
Views
256
Oct 9, 2023
Firebyrd91
J
How to remove battery tray 2004 TB LS?
John04TB
Oct 5, 2023
Replies
2
Views
247
Oct 7, 2023
Mooseman
T
2003 Trailblazer LT Ext cranks but wont start no fuel pressure
TrailblazerLTExtended
Oct 4, 2023
Replies
6
Views
373
Oct 4, 2023
Mooseman
E
Parts cleaner to clean oil pickup tube
emedlin
Sep 27, 2023
Replies
21
Views
1K
Oct 2, 2023
emedlin
E
temp raise after 15 min drive with AC on, but go back if i turn off AC
rolo95
Sep 1, 2023
Replies
21
Views
765
Sep 15, 2023
aaserv
New exhaust manifold
corky
Jul 4, 2023
Replies
4
Views
532
Sep 12, 2023
JayArr
SOLVED!
Loose, Rattle-y Heat Sheilds
l008com
Jul 15, 2023
Replies
24
Views
1K
Sep 11, 2023
JayArr
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