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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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4.2 cylinder sleeve replacement
Gfmdesign
Nov 12, 2023
2
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40
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2K
Mar 19, 2024
mrrsm
NEED HELP
2002 tb Oil leak spilling in to the belt
rolo95
Jan 22, 2024
Replies
11
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520
Jan 30, 2024
Mooseman
NEED HELP
high engine oil consumption
yazan
Aug 23, 2018
Replies
3
Views
889
Dec 13, 2023
mrrsm
A
NEED HELP
Belt Tensioner?
AC75TB07
Aug 19, 2023
Replies
14
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906
Nov 8, 2023
Realism
NEED HELP
2002 Chevy Trailblazer no crank
BlueDazing
Mar 22, 2023
2
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4
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158
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7K
Oct 27, 2023
TJBaker57
NEED HELP
Looking for info on testing COP, good ohm range
Drec
Oct 25, 2023
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1
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304
Oct 25, 2023
TJBaker57
T
NEED HELP
After putting in new rebuild 4.2 Envoy can't get it to start up.
Tboy4u2nv
Oct 20, 2023
Replies
7
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543
Oct 24, 2023
azswiss
A
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Clean Throttle & MAF Sensor... Still Rough at Idle...
AC75TB07
Sep 21, 2023
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8
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644
Sep 22, 2023
mrrsm
A
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Manually Adjust Transfer Case Position?
AC75TB07
Aug 19, 2023
Replies
21
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2K
Aug 22, 2023
AC75TB07
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S
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difference between a 2005 4.2l and a 2006 4.2l short block
shuby63
Jul 12, 2023
Replies
2
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512
Jul 12, 2023
Mooseman
S
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02 Envoy cooling issues
Scooter72
Jun 20, 2023
Replies
7
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713
Jun 27, 2023
Scooter72
S
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Oil Pressure guage drops to zero (sometimes) during idle
stvrob
Jun 26, 2023
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5
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565
Jun 27, 2023
TJBaker57
P
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P0102 and P2101
pell
Apr 21, 2023
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9
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735
May 7, 2023
pell
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VVT disassembly information needed.
cornchip
Mar 23, 2023
Replies
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394
Mar 24, 2023
mrrsm
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Envoy Parasitic battery drain
evcorchado
Jan 3, 2023
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732
Jan 3, 2023
Mooseman
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Fuel Pressure regulator location
Harut
Oct 14, 2022
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19
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2K
Nov 25, 2022
Harut
H
T
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"Top End Soak" ... question
TequilaWarrior
Apr 29, 2022
Replies
11
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6K
May 3, 2022
TollKeeper
K
NEED HELP
2008 Trailblazer No Spark
kw1hf
Apr 21, 2022
Replies
13
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2K
Apr 29, 2022
budwich
B
D
NEED HELP
Wiring diagram & pinout chart .
D.L.G.
Mar 11, 2022
Replies
2
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4K
Mar 12, 2022
mrrsm
NEED HELP
Fuel pump relay
WhiteWolf
Mar 1, 2022
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3
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735
Mar 2, 2022
WhiteWolf
J
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02 envoy rep
Jrob21
Jan 17, 2022
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15
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2K
Jan 18, 2022
Mooseman
L
NEED HELP
2002 GMC envoy won't start
loopdawg111
Jan 15, 2022
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3
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1K
Jan 16, 2022
59840Surfer
P
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Shifting problems
pell
Nov 25, 2021
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0
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704
Nov 25, 2021
pell
P
M
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fuel smell—-I changed almost everything
mudpaws672
May 10, 2021
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33
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5K
Oct 4, 2021
Chickenhawk
NEED HELP
Surging or lunging
John Koda
Oct 3, 2021
Replies
3
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819
Oct 3, 2021
John Koda
Z
NEED HELP
05 Trailblazer Fuel Gauge Problem. Bad PCM?
Zmoney
Jun 4, 2021
2
3
Replies
85
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7K
Sep 8, 2021
Mramses
M
M
NEED HELP
Oil dipstick measurement
Mramses
Sep 2, 2021
Replies
10
Views
2K
Sep 4, 2021
flyboy2610
NEED HELP
Best way to lock flywheel for harmonic balancer replacement.
Timber531
Jun 10, 2021
2
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52
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7K
Aug 22, 2021
Mooseman
F
NEED HELP
02 Trailblazer LT Over heating
Fmechanic
Aug 9, 2021
Replies
6
Views
888
Aug 19, 2021
JayArr
NEED HELP
Transmission shift linkage issues
littleblazer
Jul 28, 2021
Replies
7
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2K
Aug 3, 2021
Blckshdw
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