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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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S
NEED HELP
Rough idle after parked on incline
Sp00nix
Feb 6, 2019
Replies
5
Views
7K
Feb 8, 2019
Sp00nix
S
What you guys think of this Kooks Exhaust Header?
DIY Fixer
Jan 31, 2016
2
Replies
42
Views
7K
May 17, 2016
therealsethallen
A
removing Oil Pan from Hell
aspevacek
Jul 5, 2012
Replies
12
Views
7K
Jul 7, 2012
Irishboy02
Harmonic Balancer Problems
kcel2001
Aug 24, 2015
Replies
21
Views
7K
Dec 27, 2015
alupparelli
D
2003 Envoy, Reduced Engine Power Lamp
deutzmann
Feb 20, 2015
Replies
15
Views
7K
Feb 24, 2018
deutzmann
D
White Goop on Oil Cap
Rogue92
Jan 5, 2016
Replies
33
Views
7K
May 11, 2020
zaid3ssaf
Turbo time?
CDJuda
May 5, 2014
Replies
37
Views
7K
Jul 23, 2014
CDJuda
06 Trailblazer with a persistent p0335 code
kawaholic
Sep 9, 2013
Replies
16
Views
7K
Sep 12, 2013
kawaholic
E
broken spark plug in head
elew57
Feb 25, 2014
Replies
20
Views
7K
Nov 12, 2015
bingnune
Too Bad they Killed the LL8
Pittdawg
May 4, 2014
Replies
15
Views
7K
May 13, 2014
IllogicTC
S
vibration at idle/in drive
sunliner
Jan 6, 2016
Replies
15
Views
7K
Feb 15, 2016
Sparky
NEED HELP
Trailblazer coolant bubbling, no coolant flow?
JPutnam
Jun 30, 2017
Replies
7
Views
7K
Jul 1, 2017
Mooseman
J
Possible Rod Knock?
jsprewell
Aug 24, 2013
Replies
24
Views
7K
Oct 21, 2013
jsprewell
J
D
Hesitation at full throttle, sometimes partial.
deerslayer1985
Feb 11, 2017
2
Replies
44
Views
6K
Jul 14, 2017
deerslayer1985
D
Headlamp washer motor? is this it?
fadyasha
Jan 7, 2012
Replies
24
Views
6K
Jan 9, 2012
Harpo
Idling Rough Lately
DenaliHD66
Jan 9, 2013
2
3
Replies
94
Views
6K
Apr 14, 2013
DenaliHD66
E
What is our redline?
ElAviator72
May 19, 2012
Replies
14
Views
6K
May 22, 2012
kardain
G
Reduced engine power light
guy77
Jan 18, 2013
Replies
21
Views
6K
Jan 1, 2014
LikeEnvoy
F
SOLVED!
4.2 Sluggish Acceleration and Odd Cold Startup
FlyFish3rman
Aug 4, 2022
Replies
25
Views
6K
Sep 12, 2022
FlyFish3rman
F
P
P0305 error
PeachesSabrina
Jun 16, 2021
2
Replies
48
Views
6K
Jun 29, 2021
PeachesSabrina
P
NEED HELP
ATF leaking at radiator coolant line fitting on 2002 Envoy
Drec
Oct 11, 2019
Replies
13
Views
6K
Oct 15, 2019
Drec
low oil pressure light
bear 601
Sep 21, 2014
Replies
12
Views
6K
Sep 27, 2014
bear 601
PCMFORLESS tune done!
fadyasha
Dec 29, 2011
Replies
25
Views
6K
Jan 5, 2012
marshall@pcm
M
R
NEED HELP
P0171 Lean Code
Reed
Jun 20, 2019
Replies
26
Views
6K
Jun 23, 2020
zaid3ssaf
Changing spark plugs.
LouisTB
Apr 19, 2016
Replies
37
Views
6K
Feb 20, 2022
Brian K
B
N
Weird fan clutch + transmission issue.
Niklaus
Jun 9, 2014
Replies
9
Views
6K
Jun 18, 2014
KNBlazer
F
Might Have Dropped Socket into manifold
fireman3214
Sep 20, 2015
Replies
16
Views
6K
Sep 21, 2015
kickass audio
K
C
04 TB EXT and POOR gas mileage
convincer253
Apr 4, 2012
2
Replies
60
Views
6K
Apr 6, 2014
gmcman
R
persistent p0420
randyhazard25
May 6, 2014
Replies
13
Views
6K
May 25, 2014
DenaliHD66
L
Recommendations for where to buy Motor Mounts
Lacher
Apr 26, 2013
Replies
22
Views
6K
Nov 12, 2013
jimmyjam
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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
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