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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
Yesterday at 11:29 AM
movietvet
Drivetrain
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1.1K
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13.3K
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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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40
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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Please, help accessing front 3 bolts on oil pan in order to remove it.
Tatsun
Mar 20, 2024
Replies
2
Views
165
Mar 20, 2024
Mooseman
NEED HELP
Possible bad fuel pump (confirmation needed)
ghost_leader07
Nov 8, 2023
Replies
28
Views
960
Nov 14, 2023
mrrsm
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
NEED HELP
Stick Dipstick!
l008com
Jul 24, 2019
Replies
38
Views
6K
Dec 7, 2022
Mooseman
X
NEED HELP
AC / Heater Blower working intermittently with dash lights
Xodus989
Oct 5, 2022
Replies
9
Views
820
Oct 9, 2022
Xodus989
X
H
NEED HELP
4WD not working
HoldenEst
Sep 9, 2022
Replies
4
Views
465
Sep 10, 2022
Mooseman
NEED HELP
Overheating issue with AC ON!
ghost_leader07
Aug 17, 2022
2
Replies
49
Views
3K
Aug 23, 2022
ghost_leader07
NEED HELP
P1221 Only with A/C on
Ric_Whit
Aug 19, 2022
Replies
8
Views
1K
Aug 20, 2022
mrrsm
NEED HELP
Shifter locked in neutral
Drec
Jul 28, 2022
Replies
14
Views
1K
Aug 2, 2022
Drec
NEED HELP
P0651
psa55
Jun 7, 2020
Replies
17
Views
4K
Jul 14, 2022
mrrsm
NEED HELP
Gas Caps
WhiteWolf
Mar 18, 2022
Replies
3
Views
722
Mar 18, 2022
Mooseman
NEED HELP
Recommended Exhaust Manifold Replacement?
MrShelley
Oct 14, 2021
Replies
15
Views
2K
Jan 30, 2022
Schurkey
R
NEED HELP
06 Trailblazer EXT 4.2 Engine swap
Rick
Nov 8, 2021
Replies
30
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4K
Jan 10, 2022
NJTB
N
S
NEED HELP
4x4 Working strange
Sn1perdeath
Aug 27, 2021
Replies
25
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2K
Sep 10, 2021
chris68369
C
R
NEED HELP
Boiling sound from radiator overflow
Rick
Aug 4, 2021
Replies
7
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1K
Aug 4, 2021
Rick
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Question 🤔
Bronsonc1856
Aug 4, 2021
Replies
2
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456
Aug 4, 2021
Redbeard
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2003 Trailblazer transmission
mudpaws672
Jun 30, 2021
Replies
6
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772
Jul 2, 2021
JimInRadfordVA
C
NEED HELP
Starter only clicks
cretecrawler
Mar 21, 2021
Replies
18
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2K
Mar 23, 2021
cretecrawler
C
NEED HELP
Replacing LH bearing in front diff, have questions.
gmcman
Mar 7, 2021
Replies
19
Views
2K
Mar 19, 2021
gmcman
J
NEED HELP
2008 Chevy trailblazer Lt 4x4
Jgonzalez
Dec 30, 2020
Replies
10
Views
1K
Jan 5, 2021
JerryIrons
J
V
NEED HELP
Doesn’t stay running when cold
Voy07
Dec 20, 2020
Replies
20
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2K
Dec 24, 2020
Voy07
V
K
NEED HELP
AC compressor question
KEEBZ489
Oct 27, 2020
Replies
5
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868
Oct 30, 2020
Mektek
M
NEED HELP
Intake hose loose with heavy white smoke out from the engine
yazan
Oct 8, 2020
Replies
6
Views
2K
Oct 8, 2020
mrrsm
NEED HELP
Fan Clutch from hell lol
Aec678
Aug 30, 2020
2
Replies
58
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5K
Sep 13, 2020
TJBaker57
S
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saab97x5.3i Where are the rust spots on the transmission tubes?
Sprung Monkey
Aug 14, 2020
Replies
11
Views
1K
Aug 29, 2020
gmcman
NEED HELP
2006 chevy trailblazer relearn
ayalamarcus5223
Apr 25, 2020
Replies
10
Views
2K
Apr 27, 2020
Cthornburg1972
C
R
NEED HELP
Annoying chirp under hood
richphotos
Apr 19, 2020
Replies
19
Views
3K
Apr 25, 2020
richphotos
R
M
NEED HELP
2002 TB LS 4WD front wheels not engaging
moneymike
Nov 17, 2019
Replies
7
Views
1K
Nov 25, 2019
moneymike
M
G
NEED HELP
Runs drives fine cold warms up and stalls no restart
Gogo5o
Nov 5, 2019
Replies
17
Views
3K
Nov 15, 2019
Maverick6587
K
NEED HELP
Can't quite figure this one out.
Kansasborn
Sep 25, 2019
Replies
3
Views
781
Oct 24, 2019
Maverick6587
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