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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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38.8K
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4.2 cylinder sleeve replacement
Mar 19, 2024
mrrsm
Drivetrain
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13.3K
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13.3K
SOLVED!
4WD Glitch
Monday at 8:28 PM
Mooseman
Vortec 5.3L V8
392
5.2K
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392
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5.2K
Catalytic converter replacement options EPA vs carb
Feb 18, 2024
Mike534x
LS2 6.0L V8
40
839
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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P
02 Trailblazer 4 wheel drive problem
Paul1958
Jan 27, 2013
Replies
13
Views
4K
Feb 6, 2013
Paul1958
P
J
Chirping noise that goes away in 4 wheel drive...
joemcc
Jan 4, 2013
Replies
8
Views
2K
Feb 2, 2013
joemcc
J
T
Power Steering Fluid Color
TNEnvoyXL
Jan 27, 2013
Replies
7
Views
1K
Jan 30, 2013
TNEnvoyXL
T
Replaced Plugs, check out the oil and odd plug number...
Robbabob
Jan 19, 2013
Replies
16
Views
2K
Jan 29, 2013
mrphoenix80
M
A
Hesitation/stumble at 50 mph fixed by racing engine on highway but new sound
Ariel Guerra
Jan 16, 2013
Replies
14
Views
1K
Jan 28, 2013
BuckeyeEvan
K
Changing Air filter
kjkim93
Jan 27, 2013
Replies
6
Views
1K
Jan 28, 2013
kjkim93
K
4.2L I6 Head Removal/Engine Restoration
OctaneRider03
Aug 1, 2012
9
10
11
12
13
Replies
490
Views
66K
Jan 28, 2013
OctaneRider03
Steering wheel position sensor
steveo67
Jan 27, 2013
Replies
6
Views
4K
Jan 28, 2013
jason43080
AC Condensation Drainage tube
Shana7711
Jan 23, 2013
Replies
4
Views
4K
Jan 23, 2013
Shana7711
F
Rear End Fill plug
fredhouse
Nov 28, 2012
Replies
9
Views
2K
Jan 23, 2013
Wooluf1952
H
2006 Trailblazer LT transfer case encoder motor install question
Holmes89d
Jan 7, 2013
Replies
1
Views
1K
Jan 20, 2013
esbob
E
CV Shaft Stuck In Disconnect...
keepontruckin
Jan 18, 2013
Replies
5
Views
1K
Jan 20, 2013
Opeth
A
Engine double shifts sometimes when flooring gas pedal
Ariel Guerra
Jan 17, 2013
Replies
8
Views
1K
Jan 17, 2013
ScarabEpic22
J
High pitch ATF grinding sound when cold shifting from 2nd to 3rd gear
jemmie
Dec 25, 2012
Replies
12
Views
1K
Jan 16, 2013
Bartonmd
belt tensioner assembly
floridafitz
Jan 12, 2013
Replies
13
Views
2K
Jan 16, 2013
meerschm
C
2006 poor cold starting in cold weather, p0300 obc runs fine when warm
cbduffeck
Jan 6, 2013
Replies
13
Views
2K
Jan 11, 2013
cbduffeck
C
Exhaust mod?Maybe glasspack
trailblazin06
Jan 8, 2013
Replies
3
Views
1K
Jan 8, 2013
NewfieEnvoy
A
Noise when moving (possible wheel bearing)/Traction control and 4x4 light.
acpowell
Jan 7, 2013
Replies
2
Views
927
Jan 7, 2013
acpowell
A
K
Switching to 4Hi
kmanz1
Jan 1, 2013
Replies
8
Views
1K
Jan 3, 2013
kmanz1
K
Thinkin about doing a repair
03luvvoy
Dec 30, 2012
Replies
7
Views
1K
Jan 2, 2013
JCJARHEAD
J
O
Unusual Transmission Problem -Fixed
OldSVTGuy
Jan 1, 2013
Replies
2
Views
1K
Jan 1, 2013
OldSVTGuy
O
J
Driveline yoke - off 180° cause vibration?
joemcc
Dec 31, 2012
Replies
1
Views
832
Dec 31, 2012
The_Roadie
B
Servo Question..
buster04
Dec 29, 2012
Replies
1
Views
873
Dec 30, 2012
Black LT
J
4x4
Jgoodnig
Dec 27, 2012
Replies
3
Views
819
Dec 27, 2012
jrSS
S
engine peaks around 4000 rpm. vibration at idle
stantheman
Dec 26, 2012
Replies
6
Views
1K
Dec 27, 2012
blwn31
B
A
AC problems
andy702252
Dec 27, 2012
Replies
3
Views
953
Dec 27, 2012
The_Roadie
P
Engine sounds like a diesel during cold morning starts
phillypoet313
Dec 26, 2012
Replies
3
Views
1K
Dec 26, 2012
phillypoet313
P
S
how do I change the Differential drivers side bearings out?
shortman1166
Dec 18, 2012
Replies
6
Views
1K
Dec 26, 2012
The_Roadie
L
Has anyone purchased the GForce Performance Chip? Does it improve mpg?
Lacher
Nov 3, 2012
Replies
13
Views
3K
Dec 23, 2012
Mark20
Clarification on Front & Rear Differential Lubes
DgTerrell
May 29, 2012
Replies
17
Views
10K
Dec 22, 2012
Fire06
F
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