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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
New
2.5K
38.8K
Threads
2.5K
Posts
38.8K
2002 TB running great
Yesterday at 11:29 AM
movietvet
Drivetrain
New
1.1K
13.3K
Threads
1.1K
Posts
13.3K
NEED HELP
Tranny slipping and surging. 4WD switch flashing
Apr 4, 2024
filthyfingers
Vortec 5.3L V8
392
5.2K
Threads
392
Posts
5.2K
Catalytic converter replacement options EPA vs carb
Feb 18, 2024
Mike534x
LS2 6.0L V8
40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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C
Strangest drive train noise w/ video
Clooney
Jun 25, 2021
Replies
11
Views
1K
Jun 29, 2021
Clooney
C
S
I may have ruined the oil pump?
Sprung Monkey
Jun 25, 2021
Replies
36
Views
4K
Jul 28, 2021
Sprung Monkey
S
TCM LOCATION
John Koda
Jun 21, 2021
Replies
4
Views
5K
Jun 21, 2021
Chickenhawk
S
How hard can a 5.3 engine install be on gmt360
Sprung Monkey
Jun 5, 2021
Replies
15
Views
2K
Jul 20, 2022
Reprise
K
ac refill for short wheelbase ?
KEEBZ489
May 30, 2021
Replies
3
Views
609
May 31, 2021
Mooseman
$1700 A/C quote to replace the evaporator under the dash
6716
May 26, 2021
Replies
16
Views
2K
Jul 6, 2021
6716
E
04 into 07 engine swap
Emanuel Banda
May 18, 2021
Replies
1
Views
554
May 18, 2021
Mooseman
S
I’d like to test compression on the 07 5.3 V8
Sprung Monkey
May 17, 2021
Replies
10
Views
5K
May 19, 2021
Sprung Monkey
S
C
Another Dex Cool Question. Did I mess up?
c good
May 15, 2021
Replies
12
Views
1K
May 20, 2021
littleblazer
Oil Filter Removal Trick?
l008com
May 13, 2021
Replies
12
Views
2K
Jun 4, 2021
JayArr
H
4x4 service light
Hawkce541
Apr 28, 2021
Replies
2
Views
811
Apr 28, 2021
Hawkce541
H
J
Does the 4.2 platform have an INERTIA CUTOFF SWITCH ?
jhenry999
Apr 20, 2021
Replies
7
Views
1K
Jun 24, 2021
Mooseman
Oil/Grease Coming From Somewhere
psa55
Apr 17, 2021
Replies
8
Views
1K
May 2, 2021
Reprise
S
Cruising good only about 1.5 miles then she cuts off.
Sprung Monkey
Apr 14, 2021
2
Replies
59
Views
5K
Oct 17, 2021
Martyelzz4
C
Transmission issues please help
chris6822
Apr 12, 2021
Replies
19
Views
2K
Apr 16, 2021
JayArr
SOLVED!
Locked out
zaid3ssaf
Apr 11, 2021
Replies
19
Views
2K
May 8, 2021
Tankcruiser
C
Locked
4l60e help please
chris6822
Apr 4, 2021
Replies
8
Views
1K
Apr 12, 2021
Blckshdw
I really need some advice before I blow up this truck😤
Metanoiahenery
Apr 2, 2021
Replies
10
Views
1K
Apr 6, 2021
northcreek
L
2004 Envoy P0526 code
Lisa'sEnvoy
Mar 30, 2021
Replies
1
Views
716
Mar 30, 2021
Mooseman
C
no 3rd or 4th
chris6822
Mar 30, 2021
Replies
3
Views
676
Apr 4, 2021
chris6822
C
R
Gotta replace Valve Cover Gasket
rfunk5201
Mar 29, 2021
Replies
5
Views
906
Mar 30, 2021
gmcman
D
Help! Truck cut off while driving and won’t start now.(Good battery)
Dan512
Mar 26, 2021
Replies
11
Views
1K
Mar 29, 2021
KEEBZ489
K
J
Trans Cooler and Power Steering cooler/lines installed
jerflash
Mar 24, 2021
Replies
11
Views
2K
Apr 22, 2021
budwich
B
C
NEED HELP
Starter only clicks
cretecrawler
Mar 21, 2021
Replies
18
Views
2K
Mar 23, 2021
cretecrawler
C
S
Difficulty removing clutch fan
Sprung Monkey
Mar 15, 2021
2
Replies
48
Views
7K
Apr 13, 2021
Sprung Monkey
S
Trans fluid color ?
Ilikemy3s
Mar 9, 2021
Replies
9
Views
2K
Mar 17, 2023
Mooseman
NEED HELP
Replacing LH bearing in front diff, have questions.
gmcman
Mar 7, 2021
Replies
19
Views
2K
Mar 19, 2021
gmcman
M
2006 envoy 4.2L no crank no start!!
Motocross103
Mar 3, 2021
Replies
9
Views
2K
Mar 4, 2021
Motocross103
M
M
4x4 issue
Mbenoy-19
Feb 25, 2021
Replies
5
Views
550
Feb 25, 2021
Mooseman
K
transfercase output seal part # ?
KEEBZ489
Feb 25, 2021
Replies
4
Views
566
Mar 5, 2021
gmcman
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