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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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C
Starter motor install tomorrow....Uggghhh....
c good
Aug 12, 2024
Replies
2
Views
389
Aug 13, 2024
Mooseman
R
NEED HELP
Crank but No start
Richard_Meyer
Aug 5, 2024
Replies
10
Views
956
Aug 13, 2024
budwich
B
B
Which 4.2 water pump?
BrianF
Jul 28, 2024
Replies
6
Views
926
Aug 9, 2024
marineguy99
M
NEED HELP
2002 tb Oil leak spilling in to the belt
rolo95
Jan 22, 2024
Replies
13
Views
1K
Aug 9, 2024
c good
C
K
AC Accumulator Leak?
krunal88
Aug 5, 2024
Replies
4
Views
991
Aug 7, 2024
krunal88
K
C
Locked
SOLVED!
Fuse 28 PCM-1 blows randomly
c good
Mar 15, 2018
2
3
4
Replies
157
Views
28K
Jul 31, 2024
Mooseman
I
NEED HELP
2007 chevy trailblazer 4.2 crank no start
iccfl
Jul 29, 2024
Replies
10
Views
1K
Jul 30, 2024
iccfl
I
T
2006 4.2 Long cranking some times
TBgonzo
Jul 7, 2024
Replies
1
Views
472
Jul 8, 2024
Mooseman
S
Alternator difference between 2005 and 2007 TB
santon
Jun 26, 2024
Replies
4
Views
929
Jun 27, 2024
santon
S
Anyone know Hayden 8027739 fan clutch?
ZD3SF
Jun 19, 2024
Replies
5
Views
940
Jun 24, 2024
Mike534x
F
TB EXT LT 2006 4.2 Engine Starter Motor Power Rating
far eastan
Jun 9, 2024
Replies
13
Views
1K
Jun 12, 2024
far eastan
F
U
SOLVED!
U1000 U1016 no start no crank
User#3
Jun 11, 2024
Replies
5
Views
2K
Jun 12, 2024
mrrsm
P0135
JayArr
Aug 13, 2023
Replies
35
Views
3K
Jun 8, 2024
JayArr
B
NEED HELP
Rear a.c blockoff kit
BigSilver
Jun 2, 2024
Replies
3
Views
742
Jun 3, 2024
Mooseman
H
Looking for a programmer that can disable SAIS codes for system removal
hsapir
May 24, 2024
Replies
6
Views
676
May 25, 2024
hsapir
H
C
Troubleshooting rough running 4.2
Chilly
May 20, 2024
Replies
4
Views
937
May 21, 2024
christo829
C
Only 3000 miles on oil, but One year old. Change filter too?
c good
Apr 23, 2024
Replies
7
Views
1K
May 7, 2024
Realism
Horn dose not work
felicie
Dec 10, 2015
Replies
13
Views
3K
Apr 25, 2024
Sqrly
C
OEM Thermostat Temperature
Camdo
Apr 19, 2024
Replies
10
Views
2K
Apr 19, 2024
Mike534x
2002 TB running great
movietvet
Apr 17, 2024
Replies
0
Views
685
Apr 17, 2024
movietvet
J
Gas tank venting issues can't fill
johnny be good
Apr 25, 2021
Replies
15
Views
5K
Mar 28, 2024
johnny be good
J
O2 Sensor Recommendation please?
jmonica
Mar 10, 2024
Replies
8
Views
2K
Mar 16, 2024
jmonica
S
2005 TB 4.2L engine noise
santon
Sep 1, 2023
Replies
10
Views
2K
Mar 10, 2024
azswiss
S
Heat shield
Stuntmanmike1977
Feb 25, 2024
Replies
2
Views
916
Feb 26, 2024
Mooseman
W
4.2 xuv water pump and coolant
WookieeUK
Feb 15, 2024
Replies
7
Views
1K
Feb 17, 2024
WookieeUK
W
C
Electric oil pressure gauge or true oil pressure gauge?
c good
Feb 5, 2024
Replies
3
Views
922
Feb 5, 2024
mrrsm
SOLVED!
Low oil pressure 4.2L
Nvarela64
Aug 23, 2022
2
Replies
54
Views
21K
Jan 25, 2024
Mooseman
C
Interesting 4.2 GM video
c good
Jan 21, 2024
Replies
0
Views
928
Jan 21, 2024
c good
C
D
Air box mod
David Powe
Nov 5, 2015
Replies
19
Views
12K
Jan 19, 2024
Blckshdw
R
2004 trailblazer no crank no start
Randall350
Jan 4, 2024
Replies
8
Views
3K
Jan 16, 2024
Mooseman
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