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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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PO442
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Stuntmanmike1977
Drivetrain
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Normal Transmission Temperature?
Yesterday at 12:38 PM
Brian K
Vortec 5.3L V8
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Runs rough couple miles after starting
Friday at 10:43 AM
MD_Envoy_Driver
LS2 6.0L V8
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Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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2002 Trailblazer Motor Mount Replacement (Passenger Side)
Scott400
Jun 29, 2016
Replies
11
Views
3K
Aug 21, 2016
Jon Blaze
J
S
NEED HELP
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
Transmission wont shift out of park
dvs.dave.03ltz
Mar 14, 2019
Replies
11
Views
2K
Mar 17, 2019
Reprise
NEED HELP
UNKNOWN FRONT END NOISE
joshtheawesome
Sep 16, 2017
Replies
11
Views
2K
Sep 25, 2017
HARDTRAILZ
J
NEED HELP
2008 Chevy trailblazer Lt 4x4
Jgonzalez
Dec 30, 2020
Replies
10
Views
1K
Jan 5, 2021
JerryIrons
J
NEED HELP
2006 chevy trailblazer relearn
ayalamarcus5223
Apr 25, 2020
Replies
10
Views
2K
Apr 27, 2020
Cthornburg1972
C
NEED HELP
Charging System Low Voltage
Robbabob
Mar 6, 2018
Replies
10
Views
1K
Mar 10, 2018
mrrsm
NEED HELP
Transmission jerks at 50-60 mph
rene_320
Jan 24, 2017
Replies
10
Views
2K
Feb 1, 2017
gmcman
C
NEED HELP
Valve spring retainers popped off
chaphar540
Aug 31, 2019
Replies
9
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4K
Aug 31, 2019
chaphar540
C
NEED HELP
2003 TB 4.2. Wont go over 5mph
Joshj517
Feb 18, 2019
Replies
9
Views
2K
Feb 21, 2019
gmcman
C
NEED HELP
Intake manifold broken bolt
crazyelvis3577
Jun 28, 2016
Replies
9
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5K
Jul 4, 2016
coolasice
C
X
NEED HELP
AC / Heater Blower working intermittently with dash lights
Xodus989
Oct 5, 2022
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9
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844
Oct 9, 2022
Xodus989
X
0
NEED HELP
2006 trailblazer no power/start
06tbrudy
Jun 4, 2019
Replies
9
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1K
Jun 10, 2019
06tbrudy
0
NEED HELP
Trailblazer cranking but won't start
keile
Jan 19, 2017
Replies
9
Views
1K
Jan 23, 2017
keile
NEED HELP
Temperature hoses???
JK171
Feb 23, 2016
Replies
9
Views
1K
Feb 24, 2016
Mooseman
NEED HELP
P1221 Only with A/C on
Ric_Whit
Aug 19, 2022
Replies
8
Views
1K
Aug 20, 2022
mrrsm
NEED HELP
Speaker feedback
Traz
Jan 1, 2019
Replies
8
Views
957
Jan 7, 2019
Traz
B
NEED HELP
Fuel leak
byteme
Aug 6, 2019
Replies
8
Views
1K
Aug 11, 2019
mrrsm
H
NEED HELP
Coolant leak
htseat2000
Dec 15, 2017
Replies
8
Views
1K
Dec 17, 2017
NJTB
N
C
NEED HELP
Engine/transmissions dowels
crazyelvis3577
Sep 20, 2016
Replies
7
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1K
Sep 21, 2016
AWD V8
R
NEED HELP
Boiling sound from radiator overflow
Rick
Aug 4, 2021
Replies
7
Views
1K
Aug 4, 2021
Rick
R
M
NEED HELP
2002 TB LS 4WD front wheels not engaging
moneymike
Nov 17, 2019
Replies
7
Views
2K
Nov 25, 2019
moneymike
M
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NEED HELP
Help with fuel tank replacement
nvoy04MJIN
Mar 10, 2016
Replies
7
Views
1K
Mar 12, 2016
mrrsm
NEED HELP
4wd didn't switch to 2wd
Riktar
Jan 26, 2018
Replies
7
Views
2K
Feb 2, 2018
Riktar
NEED HELP
02 Trailblazer Transmission Replacement Issues [Solved]
SmokeyMcBlazer
Dec 16, 2017
Replies
7
Views
2K
Dec 22, 2017
Mooseman
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
ERROR P0300 Help!?!
Ghost
Feb 11, 2017
Replies
6
Views
2K
Feb 13, 2017
Ghost
NEED HELP
Exhaust question
dna59
Sep 9, 2018
Replies
6
Views
1K
Sep 11, 2018
dna59
M
NEED HELP
2003 Trailblazer transmission
mudpaws672
Jun 30, 2021
Replies
6
Views
782
Jul 2, 2021
JimInRadfordVA
NEED HELP
Reverse Coolant Flush?
RyanEAS
Jan 17, 2016
Replies
5
Views
1K
Jan 18, 2016
linneje
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