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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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PO442
Yesterday at 11:06 PM
Stuntmanmike1977
Drivetrain
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Re-using Torque converters
Tuesday at 10:44 AM
JayArr
Vortec 5.3L V8
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Runs rough couple miles after starting
Yesterday 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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alternator gremlins?
floridafitz
Sep 12, 2012
Replies
4
Views
1K
Sep 14, 2012
floridafitz
K
Envoy inline 4.2 aux fan help
Kylek
Jul 5, 2020
Replies
4
Views
995
Jul 7, 2020
Mooseman
C
no 3rd or 4th
chris6822
Mar 30, 2021
Replies
3
Views
681
Apr 4, 2021
chris6822
C
NEED HELP
4WD issue
egger46
Dec 19, 2017
Replies
3
Views
1K
Jan 10, 2018
webdawg
W
S
Front Differential Inner Seal
SAABv8tor
Mar 31, 2014
Replies
3
Views
1K
Apr 4, 2014
SAABv8tor
S
L
Shifter has play/not clicking when in gear
ll6
Sep 26, 2020
Replies
3
Views
2K
Sep 30, 2020
mrrsm
T
Oil Leaking from black fitting next to oil filter
Troy
Dec 25, 2013
Replies
3
Views
956
Dec 28, 2013
Troy
T
T
help 4 wd issue
trucker85
Feb 20, 2014
Replies
3
Views
796
Feb 20, 2014
IllogicTC
NEED HELP
Gas Caps
WhiteWolf
Mar 18, 2022
Replies
3
Views
741
Mar 18, 2022
Mooseman
J
P0018
JCJARHEAD
Oct 8, 2014
Replies
3
Views
1K
Oct 10, 2014
JCJARHEAD
J
HAI or Back to stock?
Grimor
Apr 15, 2013
Replies
3
Views
824
Apr 16, 2013
HARDTRAILZ
M
Water Pump
Machoman
Dec 14, 2020
Replies
3
Views
568
Dec 14, 2020
mrrsm
2002 Trailblazer 2WD/AWD/4HI and 4LO
movietvet
Dec 28, 2022
Replies
3
Views
578
Dec 28, 2022
movietvet
FUEL FILTER for 2005, 4.2, 4WD
Petnatcar
Apr 30, 2023
Replies
3
Views
367
May 1, 2023
Petnatcar
J
Thinking of DIY'ing an Efan kit, am I missing anything?
JimHTP
Oct 31, 2012
Replies
3
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1K
Dec 3, 2012
JimHTP
J
2
Possible Tranny Problems?
2004tb
Oct 9, 2012
Replies
3
Views
1K
Dec 7, 2012
johnnytutos
D
rear end clunks
davidaward47
Jul 12, 2020
Replies
3
Views
746
Jul 16, 2020
davidaward47
D
radiator cap leak
WeaponX
Sep 7, 2019
Replies
3
Views
1K
Sep 10, 2019
Mooseman
K
2002 Trailblazer airbox question
KWG2005
Feb 4, 2024
Replies
3
Views
219
Feb 4, 2024
Blckshdw
Exhaust mod?Maybe glasspack
trailblazin06
Jan 8, 2013
Replies
3
Views
1K
Jan 8, 2013
NewfieEnvoy
below regulated operating temp
MikesTB
Mar 26, 2013
Replies
3
Views
786
Mar 26, 2013
v7guy
V
J
Help with airflow mode actuator
jfkmk
Nov 22, 2013
Replies
3
Views
925
Nov 22, 2013
jfkmk
J
SOLVED!
Problem Saab 9-7x Crank no start SOLVED
Pygot
Feb 1, 2020
Replies
3
Views
3K
Feb 15, 2020
Pygot
A
What does changing t-stats do
andy702252
Jan 31, 2012
Replies
3
Views
1K
Feb 8, 2012
KNBlazer
Lug Pattern
Ace1875
Apr 27, 2012
Replies
3
Views
1K
Apr 27, 2012
TexazReece
D
engine jerking
dwzook
Jun 5, 2014
Replies
3
Views
910
Jun 5, 2014
dwzook
D
B
Rpm flutter between 50-70mph
Boostking
Mar 11, 2015
Replies
3
Views
1K
Mar 19, 2015
Boostking
B
E
P0171 - Help with diagnosis
Ed H
May 13, 2014
Replies
3
Views
922
May 13, 2014
Matt
R
NEED HELP
Separating Transmission From Engine 2003 TB EXT 4.2L I6 4x4
Reed
Dec 7, 2015
Replies
3
Views
1K
Dec 13, 2015
mrrsm
E
Doing DoD delete on 05 Envoy 5.3, which cam do I choose?
EnvoyMan
Jan 27, 2023
Replies
3
Views
1K
Jan 27, 2023
EnvoyMan
E
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