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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
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4.2 cylinder sleeve replacement
Mar 19, 2024
mrrsm
Drivetrain
New
1.1K
13.3K
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1.1K
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13.3K
SOLVED!
4WD Glitch
Monday at 8:28 PM
Mooseman
Vortec 5.3L V8
392
5.2K
Threads
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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40
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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SES Light P0420 - Need help diagnosing / replacement
mubai
Aug 8, 2012
Replies
8
Views
2K
Aug 9, 2012
MAY03LT
D
starter bolt nut size.
dp28688
Aug 9, 2012
Replies
0
Views
898
Aug 9, 2012
dp28688
D
D
Closed Loop -one or two?
Duane357
Aug 4, 2012
Replies
2
Views
1K
Aug 5, 2012
Duane357
D
J
Blackstone Oil Analysis - Concerned
jemmie
Jul 25, 2012
Replies
6
Views
1K
Aug 1, 2012
seanpooh
A
Engine temp gauge moves up a couple of lines only
Ariel Guerra
Jul 26, 2012
Replies
9
Views
2K
Jul 28, 2012
CaptainXL
C
Turning 170K and neary 10 years
floridafitz
Jul 21, 2012
Replies
4
Views
1K
Jul 24, 2012
BO TIE SS
B
Idle lopes, Rough Idle #3 cyl. misfire Please help!!
BlackoutTBEroc
Jul 19, 2012
Replies
10
Views
1K
Jul 21, 2012
BlackoutTBEroc
G
Different Parts - Weird
Gary M
Jul 16, 2012
Replies
20
Views
3K
Jul 20, 2012
Mooseman
P
Emissions Leak
Pakaea
Jul 16, 2012
Replies
4
Views
1K
Jul 18, 2012
Pakaea
P
Suggestions on my next step (mod)
Canary2323
Jun 13, 2012
Replies
21
Views
2K
Jul 14, 2012
oh05ext
O
M
PCMforless 4th of July Sale!!!!!
marshall@pcm
Jun 29, 2012
Replies
10
Views
1K
Jul 11, 2012
marshall@pcm
M
M
02 trailblazer ext front and rear wiper issues
mo_86_05
Jul 2, 2012
Replies
3
Views
1K
Jul 9, 2012
The_Roadie
J
Metal on metal grinding noise, louder on right curve/turn
jemmie
Jul 1, 2012
Replies
26
Views
14K
Jul 8, 2012
jemmie
J
ODB2 0332 - Knock Sensor 1 Circuit Low Input (Bank 2)
PBoneBallSack
Jul 3, 2012
Replies
5
Views
3K
Jul 3, 2012
MAY03LT
caliper painting + purpose of res
TexazReece
Jun 28, 2012
Replies
3
Views
1K
Jun 29, 2012
The_Roadie
Rear diff carrier bearings
gmac310
Jun 24, 2012
Replies
0
Views
869
Jun 24, 2012
gmac310
Z
4.2 vs 5.3...hear me out.
ZR2Trailblazer
Apr 28, 2012
2
Replies
72
Views
20K
Jun 24, 2012
ZR2Trailblazer
Z
R
Oxygen sensor
Razorback
Jun 20, 2012
Replies
35
Views
5K
Jun 21, 2012
Fire06
F
G
reverse lights and camera, '08 TB
gippy1968
Jun 14, 2012
Replies
7
Views
1K
Jun 19, 2012
gippy1968
G
C
Catalytic Converter?
CookieMan12
Jun 13, 2012
Replies
7
Views
1K
Jun 18, 2012
McGMT
M
D
Which ODBII transmission temp
dougman
Jun 13, 2012
Replies
14
Views
2K
Jun 14, 2012
dougman
D
E
Best Bluetooth scan tool/apps? (Android)
ElAviator72
Jun 4, 2012
Replies
22
Views
4K
Jun 11, 2012
CaptainXL
C
Replace 4l60e with 4l70e?
DenaliHD66
Jun 7, 2012
Replies
13
Views
8K
Jun 8, 2012
ScarabEpic22
D
Stabilitrack And ABS Lights are on
Dakota76
May 31, 2012
Replies
12
Views
2K
Jun 5, 2012
Dakota76
D
S
Locked
PCMforLess Terrible Experience
sevendj
May 24, 2012
2
Replies
49
Views
5K
May 25, 2012
Fishhunter911
0
Need a GM Part Number. . . . .HELP
02tahoelt
May 16, 2012
Replies
5
Views
1K
May 16, 2012
02tahoelt
0
I give up.....broken bolts in engine block
Voymom
May 10, 2012
Replies
21
Views
9K
May 14, 2012
Voymom
0
Airaid or Volant CAI for 5.3L?
02tahoelt
May 11, 2012
Replies
8
Views
2K
May 14, 2012
fadyasha
Did the 03 4.2l 's have the piston slap?
03envoy
Apr 19, 2012
Replies
6
Views
2K
May 13, 2012
gmac310
D
2003 Envoy XL with a fuel leak
donniegood
Apr 16, 2012
Replies
9
Views
3K
May 13, 2012
91RS
9
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