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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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p1514 airflow to TP sensor correlation high
jpimp
Jan 3, 2014
Replies
3
Views
13K
Jan 9, 2014
jpimp
4.2 to 5.3 Swap
Riddlebox0333
Jan 24, 2012
2
Replies
46
Views
13K
Feb 22, 2012
bigytwotone
V
Overheating when AC is on.
Vonhendon
Jun 28, 2013
Replies
14
Views
13K
Jul 1, 2013
Sparky
E
Procedure to check intake manifold torque?
ElAviator72
Sep 10, 2012
Replies
8
Views
13K
Jun 8, 2013
ElAviator72
E
F
Hard to start and runs rough right after gas fillups
flap00
Apr 29, 2013
Replies
7
Views
13K
Apr 30, 2013
flap00
F
High Idle Issue with my TrailBlazer
Black08TB
Jun 2, 2015
Replies
14
Views
13K
Jun 3, 2015
Black08TB
Slight whining noise when pressing gas?
TexazReece
Jun 10, 2012
Replies
20
Views
12K
Jul 8, 2012
Matt
NEED HELP
P0300 p1514, engine power reduced, white smoke
yazan
Mar 18, 2019
2
3
Replies
81
Views
12K
May 8, 2019
Mooseman
C
motor mounts
cmatb08
Jul 4, 2012
2
Replies
55
Views
12K
Mar 18, 2013
The_Roadie
4.2L Interchange
danj
Sep 29, 2014
Replies
8
Views
12K
Oct 1, 2014
danj
Fuse 28 (pcm1) keeps blowing
rolo95
Jan 2, 2019
Replies
27
Views
12K
Jan 9, 2019
rolo95
Abandoned, 2007 Envoy 4.2 Turbo Build
Traz
Jan 29, 2018
2
3
Replies
105
Views
12K
Feb 19, 2019
Sparky
NEED HELP
Bad knocking
redline customs
Sep 19, 2016
2
Replies
58
Views
12K
Oct 7, 2016
littleblazer
M
Transmission slipping at the same time the alternator went out
Mommymobile8
May 8, 2013
Replies
11
Views
12K
Sep 9, 2013
tragicride
T
U
Transmission removal inspection repair install
Uncleenvoy
Aug 23, 2020
2
3
4
5
6
Replies
229
Views
12K
Oct 18, 2020
Uncleenvoy
U
U
Power steering line removal and replace
Uncleenvoy
Oct 22, 2020
2
3
4
5
Replies
166
Views
12K
Oct 10, 2021
coolride
Very Slight Miss at Idle
Mooseman
Nov 11, 2018
2
Replies
55
Views
12K
Feb 23, 2019
Mooseman
C
How critical is fan clutch torque?
Chilly
Jan 4, 2019
Replies
4
Views
12K
Jan 4, 2019
littleblazer
Fuse #10 PCM B blows instantly
Sparky
Dec 2, 2012
Replies
12
Views
12K
Jan 27, 2018
Adjustso3
A
Engine Gurgling/Rough Idle on Startup
DenaliHD66
Jun 24, 2014
Replies
23
Views
12K
Aug 30, 2014
DenaliHD66
Sudden p1515 and p1516 codes with stalling
Steveinfl
Mar 7, 2013
Replies
8
Views
12K
Mar 9, 2013
Steveinfl
T
high pitched squeal coming from engine when revved
texreb22271
May 1, 2015
Replies
14
Views
12K
May 3, 2015
texreb22271
T
S
stuck spark plugs
sunliner
Jan 2, 2015
2
3
Replies
82
Views
12K
Jan 21, 2015
AWD V8
S
Low oil pressure on DIC, check gauges light and oil pressure gauge is low
Steevo
Jan 10, 2018
2
3
Replies
86
Views
11K
Feb 17, 2018
Steevo
S
2 quarts of oil, no big symptoms and no leaks?
Gerbil21
Jan 23, 2015
2
3
Replies
81
Views
11K
Feb 20, 2015
Gerbil21
J
sorry about this but P1481 code
jimtrailblazer
Jan 13, 2014
Replies
12
Views
11K
Feb 13, 2014
jimtrailblazer
J
It's never ending..p1345 and p0014
Voymom
Mar 5, 2012
2
Replies
41
Views
11K
Mar 6, 2012
Voymom
Starter Motor starts slow and then speeds up....
davenay67
Feb 13, 2012
Replies
8
Views
11K
Feb 15, 2012
davenay67
R
NEED HELP
Intake manifold bolts
Raph
Jul 14, 2019
Replies
30
Views
11K
Nov 30, 2020
Dadwagon
No power to the PCM B fuse and fuel pump relay.
Maverick6587
Dec 16, 2018
Replies
14
Views
11K
Jan 4, 2019
Maverick6587
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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
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