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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
New
2.5K
38.9K
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2.5K
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38.9K
R
Only 3000 miles on oil, but One year old. Change filter too?
Yesterday at 4:41 PM
Redbeard
Drivetrain
New
1.1K
13.3K
Threads
1.1K
Posts
13.3K
NEED HELP
Tranny slipping and surging. 4WD switch flashing
Apr 4, 2024
filthyfingers
Vortec 5.3L V8
New
393
5.2K
Threads
393
Posts
5.2K
Rate this Used Airfilter
Yesterday at 12:20 PM
christo829
LS2 6.0L V8
40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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Solved - Noise while on accelerator - no noise when coasting
Chris E
May 6, 2016
Replies
22
Views
6K
Jan 16, 2017
Chris E
NEED HELP
Exhaust drone
hawkeye405
Jan 4, 2019
Replies
29
Views
6K
Jan 17, 2019
hawkeye405
NEED HELP
Stick Dipstick!
l008com
Jul 24, 2019
Replies
38
Views
6K
Dec 7, 2022
Mooseman
G
Replacing engine
Gibby
Jan 15, 2012
Replies
24
Views
6K
Jan 17, 2012
Gibby
G
Why change synthetic oil every 3,000 miles?
C-ya
Nov 1, 2012
2
Replies
64
Views
6K
Feb 14, 2013
Sparky
NEED HELP
Ac Compressor clutch not engaging
eutechnyx
Aug 15, 2017
Replies
19
Views
6K
Aug 22, 2017
jsheahawk
4.2 i6 to 5.3 ls
Big west
Jan 30, 2020
Replies
39
Views
6K
May 16, 2023
Fishnbob
F
C
2006 Trailblazer ticking noise now wont run
CASHKJ
Feb 4, 2013
2
Replies
41
Views
6K
May 2, 2013
Sparky
X66P Upper Engine & F.I. Cleaner (88861803)
rizzo20
Mar 29, 2017
Replies
9
Views
6K
Jun 24, 2017
seanpooh
New fan clutch installed. Have a question
snoozer
Jun 1, 2017
Replies
27
Views
6K
Nov 2, 2018
David Mellado
Thoughts about the 2022 2.7L turbo + 8-speed transmission Silverado?
6716
Sep 3, 2022
Replies
10
Views
6K
Sep 7, 2022
Mike534x
Throttle body or positioning sensor?
WeaponX
Sep 22, 2019
2
Replies
77
Views
6K
Oct 13, 2019
WeaponX
Reading the transmission dipstick
6716
Oct 24, 2020
Replies
7
Views
6K
Oct 26, 2020
TequilaWarrior
T
Torque converter issue, maybe?
pjrocco
Jan 23, 2017
Replies
31
Views
5K
Mar 27, 2017
Mooseman
R
Cleaned throttle body - Still misfire (p0300 P0301)
richphotos
Jan 5, 2021
Replies
32
Views
5K
Jan 16, 2021
richphotos
R
service 4WD light - new style
CodeWhite
Apr 11, 2013
Replies
15
Views
5K
May 12, 2013
TollKeeper
S
Cruising good only about 1.5 miles then she cuts off.
Sprung Monkey
Apr 14, 2021
2
Replies
59
Views
5K
Oct 17, 2021
Martyelzz4
S
Locked
PCMforLess Terrible Experience
sevendj
May 24, 2012
2
Replies
49
Views
5K
May 25, 2012
Fishhunter911
NEED HELP
03 sounds like its "dieseling"
redline customs
Aug 30, 2016
Replies
22
Views
5K
Sep 2, 2016
mrrsm
SOLVED!
Bad Wheel Bearings
l008com
Dec 20, 2021
2
Replies
59
Views
5K
Apr 24, 2022
TollKeeper
F
P0016 code
FrankV
Aug 5, 2018
Replies
19
Views
5K
Aug 14, 2018
mrrsm
NEED HELP
Fan Clutch from hell lol
Aec678
Aug 30, 2020
2
Replies
58
Views
5K
Sep 13, 2020
TJBaker57
What year TB 4L60Es are compatible with each other?
SpeedUp
Sep 25, 2018
Replies
17
Views
5K
Sep 29, 2018
Mooseman
Fuel leak from the top of the tank.
bore_pig
Jul 1, 2012
Replies
18
Views
5K
Oct 3, 2012
TonyT
T
C
ATS CRO 505....anyone tried this stuff?
c good
Sep 19, 2021
Replies
4
Views
5K
Sep 20, 2021
Mooseman
R
Saab 97x 5.3i Misfire among other things
rndgotham
Jun 11, 2014
Replies
7
Views
5K
Jun 12, 2014
rndgotham
R
B
Sudden Overheating with New Water Pump
Buck36952
Sep 3, 2013
2
Replies
73
Views
5K
Sep 20, 2013
kkoether
Z
No power at wide open throttle
Zx2ner88
Nov 25, 2015
Replies
20
Views
5K
May 23, 2016
Zx2ner88
Z
C
NEED HELP
Intake manifold broken bolt
crazyelvis3577
Jun 28, 2016
Replies
9
Views
5K
Jul 4, 2016
coolasice
C
L
Gas smell ONLY in cold weather.. 2002 Envoy 4.2
leinhit
Dec 23, 2012
Replies
7
Views
5K
Dec 28, 2015
Wooluf1952
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