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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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Gas tank venting issues can't fill
Today at 4:00 PM
johnny be good
Drivetrain
New
1.1K
13.3K
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1.1K
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13.3K
NEED HELP
Tranny slipping and surging. 4WD switch flashing
Today at 5:53 PM
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
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40
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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"Service 4WD" after front disconnect install
gmcman
Jan 15, 2020
Replies
7
Views
1K
Jan 18, 2020
bfairweath
B
K
#1 cylinder not firing
krazykrames
Jun 24, 2017
Replies
10
Views
6K
Jul 16, 2017
krazykrames
K
$1700 A/C quote to replace the evaporator under the dash
6716
May 26, 2021
Replies
16
Views
2K
Jul 6, 2021
6716
C
'04 envoy "hums/whines" in 4wd
charlell8
Jan 23, 2015
Replies
16
Views
3K
Dec 24, 2015
rcam81
M
'06 Envoy 4.2: Crank but will not start
mlkmgr
Jun 1, 2014
Replies
21
Views
13K
Jul 13, 2014
PProph
1
02 Bravada a/c compressor noise?
1978chevy4x4
Apr 21, 2013
Replies
4
Views
1K
Apr 22, 2013
meerschm
A
02 envoy shutting off help!!
Abkc
Oct 14, 2013
Replies
9
Views
1K
Oct 15, 2013
Abkc
A
S
02 envoy Transmission
Stunt_Dude
Jun 11, 2019
Replies
13
Views
2K
Mar 11, 2021
Reprise
02 I6 no start help
danger
Apr 6, 2014
2
Replies
76
Views
4K
Apr 27, 2014
IllogicTC
02 TB SES Light on with 10 Codes
gruvedaddy
Mar 29, 2014
Replies
10
Views
2K
Apr 1, 2014
gruvedaddy
P
02 Trailblazer 4 wheel drive problem
Paul1958
Jan 27, 2013
Replies
13
Views
4K
Feb 6, 2013
Paul1958
P
S
02 trailblazer 4wd issues
stohlimann
Jan 19, 2014
Replies
9
Views
1K
Jan 21, 2014
The_Roadie
M
02 trailblazer ext front and rear wiper issues
mo_86_05
Jul 2, 2012
Replies
3
Views
1K
Jul 9, 2012
The_Roadie
NEED HELP
02 Trailblazer Transmission Replacement Issues [Solved]
SmokeyMcBlazer
Dec 16, 2017
Replies
7
Views
2K
Dec 22, 2017
Mooseman
F
03 Envoy cranks but will not start
fastlane1801
Mar 15, 2014
Replies
11
Views
10K
Mar 16, 2014
IllogicTC
L
03 Envoy rattling in 2HI over 40mph
lschafroth
Mar 18, 2014
Replies
29
Views
3K
Jun 20, 2018
lschafroth
L
C
03 GMC Envoy 4.2L - Misfire- Replaced Spark Plugs now Engine knocking
coleash27
Dec 11, 2014
Replies
3
Views
7K
Dec 11, 2014
Mooseman
NEED HELP
03 sounds like its "dieseling"
redline customs
Aug 30, 2016
Replies
22
Views
5K
Sep 2, 2016
mrrsm
03 trailblazer cranks but wont start
Bobbi wells
Jan 25, 2017
Replies
13
Views
11K
Feb 18, 2017
Denalli69
D
M
03 Trailblazer No crank, No start
Mrautoserv72
Dec 19, 2020
Replies
2
Views
478
Dec 19, 2020
Mrautoserv72
M
0
04 Chevy Trailblazer
04TBowner
Oct 16, 2014
Replies
34
Views
2K
Oct 26, 2014
04TBowner
0
A
04 Chevy Trailblazer LT Rattle coming from passenger side
albsilk305
Aug 5, 2015
Replies
11
Views
4K
Aug 8, 2015
Mooseman
M
04 Envoy 4x4 lo won't disengage
MLB
Aug 13, 2012
Replies
7
Views
2K
Aug 15, 2012
BRomanJr
B
E
04 into 07 engine swap
Emanuel Banda
May 18, 2021
Replies
1
Views
543
May 18, 2021
Mooseman
04 tb 4.2 rough jolt when start or turn off.
04trailblazer1991
Jan 1, 2022
Replies
12
Views
1K
Jan 26, 2022
04trailblazer1991
G
04 TB EXT 4x4 problem. Same problem, but a couple other questions
glock35ipsc
Jan 24, 2014
Replies
31
Views
2K
Feb 1, 2014
freek245
F
G
SOLVED!
04 Trailblazer battery light issue
gica
Sep 10, 2018
Replies
5
Views
4K
Apr 9, 2019
Hlewz3
H
R
04 trailblazer stalling
Rhino
Oct 8, 2012
Replies
6
Views
2K
Oct 9, 2012
Rhino
R
V
04 Trailer Blazer gushing coolant
villawolf01
Jun 7, 2015
Replies
11
Views
1K
Jun 8, 2015
villawolf01
V
M
05 buick rainier
mikezuz
Dec 14, 2013
Replies
7
Views
1K
Dec 16, 2013
The_Roadie
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