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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
Today at 12:28 AM
Stuntmanmike1977
Drivetrain
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B
Normal Transmission Temperature?
Sunday at 12:38 PM
Brian K
Vortec 5.3L V8
New
394
5.2K
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394
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5.2K
M
Runs rough couple miles after starting
Friday at 10:43 AM
MD_Envoy_Driver
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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D
rear end clunks
davidaward47
Jul 12, 2020
Replies
3
Views
748
Jul 16, 2020
davidaward47
D
N
Ring and pinion pattern
Natedupr1
Nov 18, 2018
Replies
5
Views
745
Nov 18, 2018
mrrsm
M
4.2 2003 heater hose
medic550
Jul 13, 2015
Replies
0
Views
745
Jul 13, 2015
medic550
M
I
Hello and Help
IFISHNC
Apr 30, 2013
Replies
1
Views
744
Apr 30, 2013
Wooluf1952
NEED HELP
Gas Caps
WhiteWolf
Mar 18, 2022
Replies
3
Views
743
Mar 18, 2022
Mooseman
I
Changing Belts, Tensioners Rainier 5.3L
iceflow
Jan 15, 2014
Replies
2
Views
739
Jan 16, 2014
iceflow
I
LEAK AROUND WINDSHIELD
Petnatcar
Oct 2, 2018
Replies
4
Views
733
Oct 2, 2018
Mounce
L
2004 Envoy P0526 code
Lisa'sEnvoy
Mar 30, 2021
Replies
1
Views
732
Mar 30, 2021
Mooseman
C
Any problem going back to Synthetic Blend oil after full Synthetic?
c good
Apr 27, 2022
Replies
3
Views
731
Apr 28, 2022
littleblazer
P0107 P0122 P0223
6716
Jun 27, 2020
Replies
0
Views
729
Jun 27, 2020
6716
Envoy Torque Converter not locking
Medic3166
Dec 21, 2018
Replies
2
Views
727
Dec 21, 2018
TequilaWarrior
T
How much is too much for trans pump
Grimor
Jul 23, 2014
Replies
2
Views
727
Jul 23, 2014
RedEnvoyDenali
A
Heat Shield
Alansd
May 16, 2014
Replies
1
Views
726
May 16, 2014
The_Roadie
I
Misfire Cylinder 1 - Plug Swap
Instrumental
Jun 30, 2017
Replies
2
Views
726
Jul 3, 2017
Instrumental
I
Delphi box in engine compartment
MikeHayes
Jun 23, 2017
Replies
2
Views
725
Jun 23, 2017
MikeHayes
Lots and Lots ...of GM 4.2L Engine Swap Videos
mrrsm
Feb 17, 2018
Replies
0
Views
718
Feb 17, 2018
mrrsm
M
No Reverse
mlan12
Jul 31, 2015
Replies
3
Views
717
Jul 31, 2015
Mike w
What Sensor/Connector is This?
Maverick6587
Feb 28, 2019
Replies
2
Views
715
Feb 28, 2019
Maverick6587
Strange noises from underneath.
John T.
Jun 17, 2022
Replies
2
Views
714
Jun 18, 2022
John T.
4wd disconnect axle
mark'stb
Oct 15, 2018
Replies
2
Views
706
Oct 16, 2018
mark'stb
Q
NEED HELP
four wheel help
Quadzilla
Sep 19, 2019
Replies
4
Views
705
Sep 20, 2019
Quadzilla
Q
What is this any why is it leaking?
WeaponX
Apr 27, 2019
Replies
2
Views
704
Apr 28, 2019
Mooseman
Radiator cap selection
CajunWon
Nov 19, 2019
Replies
1
Views
703
Nov 19, 2019
Mounce
J
Buick Rainier fuel pump.
j-bone
May 9, 2014
Replies
4
Views
699
May 9, 2014
j-bone
J
Amsoil power foam ?
Ilikemy3s
Sep 9, 2022
Replies
4
Views
695
Sep 9, 2022
Mike534x
Cranks won't start
Greg0322
Dec 18, 2018
Replies
3
Views
695
Dec 19, 2018
Mooseman
C
no 3rd or 4th
chris6822
Mar 30, 2021
Replies
3
Views
686
Apr 4, 2021
chris6822
C
C
Would you put in a new Fuel Pump if it's never been replaced at 190 K miles?
c good
Oct 2, 2022
Replies
5
Views
685
Oct 5, 2022
gmcman
P
Frustration
Phill
Sep 17, 2022
Replies
1
Views
684
Sep 17, 2022
mrrsm
Where to find ignition coil harness for 2005 TB 6 cyl
Charles Austin Miller
Jul 4, 2018
Replies
4
Views
679
Jul 4, 2018
Charles Austin Miller
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