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Forums
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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NEED HELP
Tranny slipping and surging. 4WD switch flashing
Apr 4, 2024
filthyfingers
Vortec 5.3L V8
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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H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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B
Thumping while turning and braking
bdorsch44
Mar 18, 2013
Replies
3
Views
919
Mar 19, 2013
CaptainXL
C
W
Belt squeaking.
wagfam810
Dec 30, 2011
Replies
3
Views
2K
Dec 30, 2011
RayVoy
W
Non Greaseable U-Joint - Front Shaft, Front Axle, Front Pinion - 04 TB LT
webdawg
Sep 22, 2017
Replies
3
Views
1K
Oct 12, 2017
webdawg
W
M
Cam Position Sensor p0340
Mektek
Jun 25, 2020
Replies
3
Views
796
Jun 29, 2020
Mektek
M
C
P0306 - p0014
chagob
Oct 6, 2012
Replies
3
Views
1K
Oct 21, 2012
chagob
C
S
Rough Idle | No Codes
Scry0402
Dec 15, 2022
Replies
3
Views
904
Dec 15, 2022
Scry0402
S
Insulation rattling against exhaust
pL2005
Jul 20, 2017
Replies
3
Views
1K
Jul 25, 2017
pL2005
C
leaking tranny fluid
chrisN
Sep 6, 2013
Replies
3
Views
1K
Sep 7, 2013
chrisN
C
E
2004 trailblazer problems.
evant999
Sep 7, 2013
Replies
3
Views
1K
Sep 7, 2013
tblazerdude
Coolant Gone!
psa55
May 27, 2018
Replies
2
Views
753
May 31, 2018
psa55
G
electrical issue? loose connection ?
goombi
May 28, 2018
Replies
2
Views
804
May 29, 2018
mrrsm
T
CV axle problem
tim mc
Nov 23, 2012
Replies
2
Views
962
Nov 23, 2012
tim mc
T
M
fuel system
mnmray
Feb 11, 2012
Replies
2
Views
983
Feb 12, 2012
mnmray
M
B
Bad front diff bearings. anyone changed?
bgipson89
May 21, 2015
Replies
2
Views
970
May 28, 2015
bgipson89
B
R
Torque on intake gasket 2007 Blazer 3.4 litter
Ronnie1967
Nov 9, 2019
Replies
2
Views
471
Nov 9, 2019
Mooseman
C
Codes p0740 p0785 p01860
Chevytruck
Mar 21, 2022
Replies
2
Views
1K
Mar 21, 2022
mrrsm
NEED HELP
05 trailblazer tranny no noise or nothing
Tbluvr
Nov 16, 2018
Replies
2
Views
644
Nov 19, 2018
KEEBZ489
K
Walker exhaust systems
dla442
Dec 28, 2013
Replies
2
Views
952
Dec 29, 2013
gmcman
Z
Vibrations and growling from Underneath!!!!
zamimj222
Jan 2, 2012
Replies
2
Views
1K
Jan 2, 2012
zamimj222
Z
D
Trailblazer rear blower staying on
Dpack
May 19, 2013
Replies
2
Views
992
May 19, 2013
Dpack
D
M
03 Trailblazer No crank, No start
Mrautoserv72
Dec 19, 2020
Replies
2
Views
478
Dec 19, 2020
Mrautoserv72
M
B
NEED HELP
Question 🤔
Bronsonc1856
Aug 4, 2021
Replies
2
Views
457
Aug 4, 2021
Redbeard
R
U
Replace engine Question
Uncle_Joe
Sep 10, 2019
Replies
2
Views
766
Sep 11, 2019
mrrsm
C
1 Quart in 2600 miles OK?
c good
Apr 3, 2022
Replies
2
Views
495
Apr 3, 2022
Mooseman
J
How to remove battery tray 2004 TB LS?
John04TB
Oct 5, 2023
Replies
2
Views
251
Oct 7, 2023
Mooseman
A
Noise when moving (possible wheel bearing)/Traction control and 4x4 light.
acpowell
Jan 7, 2013
Replies
2
Views
930
Jan 7, 2013
acpowell
A
What is this sensor for??
WeaponX
Nov 18, 2019
Replies
2
Views
744
Nov 18, 2019
seanpooh
Alternator compatibility between years
gmcman
Jan 15, 2023
Replies
2
Views
298
Jan 16, 2023
gmcman
C
Tranny dipstick broke
Coachphil
Dec 27, 2020
Replies
2
Views
642
Dec 27, 2020
Redbeard
R
D
Closed Loop -one or two?
Duane357
Aug 4, 2012
Replies
2
Views
1K
Aug 5, 2012
Duane357
D
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