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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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V
Timing Cover Gasket
Vonhendon
Jul 1, 2012
Replies
1
Views
777
Jul 2, 2012
dougman
D
D
How do I get my intake off?
Dingo7382
May 10, 2017
Replies
1
Views
619
May 10, 2017
Mooseman
Transmission Flare/Grinding
DenaliHD66
Feb 15, 2013
Replies
1
Views
628
Feb 15, 2013
The_Roadie
B
Crank but No start
B~rad2
Aug 10, 2019
Replies
1
Views
726
Aug 11, 2019
mrrsm
2005 TB Sluggish Start ONLY After Gas Fill-Up
Charles Austin Miller
Nov 18, 2020
Replies
1
Views
513
Nov 18, 2020
BrianF
B
J
Recommendations on where to buy a rebuilt engine
jlahood
May 5, 2013
Replies
1
Views
796
May 5, 2013
CaptainXL
C
S
coil pack failures
signalnc
Mar 14, 2013
Replies
1
Views
765
Mar 14, 2013
BRomanJr
B
NEED HELP
VVT disassembly information needed.
cornchip
Mar 23, 2023
Replies
1
Views
420
Mar 24, 2023
mrrsm
R
NEED HELP
Chamfer
Rockitt1964
Nov 22, 2020
Replies
1
Views
504
Nov 29, 2020
aaserv
J
02 Envoy/TB fan clutch difference???
jaguarjoe
Mar 15, 2013
Replies
1
Views
754
Mar 15, 2013
The_Roadie
B
Flashing check engine after fuel filter change. Misfire cylinder 6.
beezyy909
Oct 19, 2018
Replies
1
Views
2K
Oct 19, 2018
Mooseman
[Repaired] 4.2 P1271 code Reduced engine power Fan Harness issue with PICS
ace
Sep 2, 2013
Replies
1
Views
6K
Sep 2, 2013
DJones
T
Fan play?
Trailblazer186
Aug 6, 2015
Replies
1
Views
781
Aug 7, 2015
Mooseman
Difference in O2 sensors pre/post engine mods?
JayArr
Oct 20, 2018
Replies
1
Views
549
Oct 20, 2018
Mooseman
Does the tensioner pulley use a left-hand threaded bolt?
gmcman
Mar 29, 2019
Replies
1
Views
851
Mar 29, 2019
gmcman
C
Slight oil leak from Rear Main Seal (RMS)
c good
May 5, 2014
Replies
1
Views
928
May 5, 2014
IllogicTC
E
NEED HELP
Occasional p0171 - Traiblazer 2004
Eddie88
Oct 22, 2018
Replies
1
Views
803
Oct 22, 2018
mrrsm
Question Regarding Coil Pack wiring
ConeKilrAutoX
Apr 10, 2013
Replies
1
Views
682
Apr 13, 2013
CaptainXL
C
J
Starts then turns off security light comes on
Johnstephens91
Jun 26, 2021
Replies
1
Views
630
Jun 26, 2021
TJBaker57
M
VVT solenoid connecter
Machoman
Dec 2, 2020
Replies
1
Views
821
Dec 2, 2020
Chemman
C
M
08’ trail blazer no crank no start
Mattb.
Mar 1, 2022
Replies
1
Views
2K
Mar 1, 2022
Mooseman
An Insurmountable Problem? Or Is There A Novel Way To Restrain The Timing Chain Against The Lower Crankshaft Cog?
mrrsm
Jan 3, 2024
Replies
1
Views
291
Jan 3, 2024
c good
C
A/C works for about 10 min, then shuts off (Solved)
gmcman
Jun 27, 2015
Replies
1
Views
838
Jun 28, 2015
Mooseman
Best kind of fuel injectors
WeaponX
Jun 14, 2019
Replies
1
Views
737
Jun 16, 2019
Mooseman
C
04 Trailblazer Checked a fuse and now engine cranks but won’t start
Cornerstonejeff
Jan 12, 2020
Replies
1
Views
624
Jan 12, 2020
Mooseman
S
front timing cover 4.2 motor
Slow_Sc3
Nov 13, 2013
Replies
1
Views
1K
Nov 14, 2013
AtlWrk
N
electrical problem !
Nizar
Feb 20, 2014
Replies
1
Views
711
Feb 20, 2014
The_Roadie
J
P0014
Jdavis84
Mar 29, 2021
Replies
1
Views
653
Mar 30, 2021
Mooseman
M
2007 envoy engine swap
mmakela13
Dec 22, 2014
Replies
0
Views
929
Dec 22, 2014
mmakela13
M
Intermittent P0130 & P0133 codes
freddyboy61
Jan 16, 2016
Replies
0
Views
627
Jan 16, 2016
freddyboy61
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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
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