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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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OEM Thermostat Temperature
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Drivetrain
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NEED HELP
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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Catalytic converter replacement options EPA vs carb
Feb 18, 2024
Mike534x
LS2 6.0L V8
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839
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H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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Transmission service
James taylor
Feb 11, 2019
Replies
11
Views
2K
Apr 3, 2019
Mounce
Transmission replacement
corky
Jan 23, 2023
Replies
6
Views
580
Jan 27, 2023
aaserv
P
Transmission Range question
Petey
Oct 2, 2016
Replies
5
Views
790
Oct 3, 2016
Petey
P
T
Transmission question
timothy918
Apr 14, 2013
Replies
20
Views
2K
May 13, 2013
dfc739
J
Transmission question
jd8181
Jan 22, 2014
Replies
12
Views
1K
Jan 24, 2014
DocBrown
J
Transmission problems on gmc envoy
JAVINDRA
Oct 16, 2018
Replies
4
Views
3K
Oct 20, 2018
John in RI
L
NEED HELP
Transmission problems (tcc, shifting)
Leukay
Jul 17, 2017
Replies
18
Views
4K
Sep 27, 2017
seanpooh
B
Transmission oil pump replacement
Babas11911
Sep 2, 2012
Replies
2
Views
932
Sep 3, 2012
Wooluf1952
J
transmission no gears when warmed up
jdutcher4426
Mar 22, 2019
Replies
8
Views
1K
Apr 2, 2019
tak13
T
Transmission line uncoupled
coolride
Aug 29, 2019
Replies
35
Views
2K
Sep 8, 2019
coolride
B
Transmission Line leak at the wheel well head clamp... temporary fix?
budwich
Dec 18, 2020
Replies
32
Views
2K
May 7, 2021
budwich
B
J
Transmission line change project notes
JerryIrons
Jul 9, 2021
Replies
9
Views
991
Aug 15, 2021
matermark
NEED HELP
Transmission jerks at 50-60 mph
rene_320
Jan 24, 2017
Replies
10
Views
2K
Feb 1, 2017
gmcman
C
Transmission issues please help
chris6822
Apr 12, 2021
Replies
19
Views
2K
Apr 16, 2021
JayArr
Transmission Issues
FearlessAZ
Jun 13, 2016
2
Replies
43
Views
4K
Jun 30, 2016
FearlessAZ
M
Transmission high rpm on highway
MarkRR59
May 5, 2022
Replies
4
Views
614
May 5, 2022
TollKeeper
Transmission Help
kronkus
May 13, 2019
Replies
5
Views
1K
Oct 23, 2019
kronkus
B
Transmission fluid pump installation
Babas11911
Sep 5, 2012
Replies
3
Views
1K
Sep 6, 2012
Babas11911
B
Transmission fluid into oil to clean lifters and stopping the knock?
WeaponX
Nov 14, 2019
Replies
10
Views
27K
Nov 16, 2019
littleblazer
S
transmission filter seal...replace or not?
sunliner
Mar 19, 2018
Replies
5
Views
1K
Mar 20, 2018
sunliner
S
L
Transmission filter kit - deep or shallow pan ?
lincolnshibuya
Jun 5, 2018
Replies
7
Views
3K
Jun 6, 2018
HARDTRAILZ
SOLVED!
Transmission fails to shift
CajunWon
Mar 6, 2020
Replies
5
Views
2K
Mar 6, 2020
CajunWon
C
Transmission Cooling line flush? Recommendations Please.
c good
Jul 22, 2012
Replies
7
Views
1K
Sep 15, 2012
WarGawd
A
Transmission Cooler Line Fittings different for 2002?
Andromeda
Feb 3, 2021
Replies
8
Views
3K
Feb 7, 2021
JayArr
J
Transmission Cooler Leak
jafo2424
Mar 11, 2014
Replies
8
Views
1K
Mar 12, 2014
meerschm
Transmission compatibility of pre '06 models
gmcman
Jul 8, 2023
Replies
2
Views
450
Jul 9, 2023
gmcman
Transmission codes and hard shifting
Mike534x
Nov 26, 2020
Replies
10
Views
1K
Dec 10, 2020
Mike534x
Transmission advice/insight needed
dna59
Aug 16, 2018
Replies
12
Views
1K
Aug 20, 2018
Chickenhawk
D
Transmission ????
dobrodave
Jan 10, 2014
Replies
5
Views
864
Jan 10, 2014
gmcman
D
Transmission
Dave4411
Dec 17, 2017
Replies
8
Views
1K
Feb 14, 2018
Beatdown Z
B
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