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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
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38.9K
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Horn dose not work
Yesterday at 4:47 PM
Sqrly
Drivetrain
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1.1K
13.3K
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1.1K
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13.3K
NEED HELP
Tranny slipping and surging. 4WD switch flashing
Apr 4, 2024
filthyfingers
Vortec 5.3L V8
New
393
5.2K
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393
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5.2K
Rate this Used Airfilter
Tuesday 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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Trying to Decode my Error Code(s)
l008com
Jan 30, 2023
Replies
21
Views
1K
Feb 18, 2023
Mooseman
Tbss intake injectors and throttle body upgrade then I lost 2nd gear 😔
Yeagamyster04
Feb 10, 2023
Replies
3
Views
522
Feb 11, 2023
Yeagamyster04
SOLVED!
4.2 cam phaser 03 Tb Ext LT
mattpaul89
Jan 13, 2023
Replies
12
Views
1K
Feb 7, 2023
mrrsm
C
Piston slap or rod knock?
c good
Feb 3, 2023
Replies
2
Views
472
Feb 5, 2023
littleblazer
ENGINE SWAP: 2004 for 2002 GM ATLAS 4.2L MOTOR
mrrsm
Jul 11, 2016
2
3
4
5
Replies
168
Views
31K
Feb 3, 2023
mrrsm
S
knocking noise from transmission and stalling
santon
Jan 30, 2023
Replies
9
Views
2K
Feb 1, 2023
mrrsm
E
Doing DoD delete on 05 Envoy 5.3, which cam do I choose?
EnvoyMan
Jan 27, 2023
Replies
3
Views
1K
Jan 27, 2023
EnvoyMan
E
Transmission replacement
corky
Jan 23, 2023
Replies
6
Views
591
Jan 27, 2023
aaserv
Filters arrived, have to go back under the TB
movietvet
Jan 18, 2023
Replies
23
Views
1K
Jan 24, 2023
movietvet
The fluid purge has started & ended.
movietvet
Jan 15, 2023
Replies
10
Views
761
Jan 16, 2023
movietvet
Alternator compatibility between years
gmcman
Jan 15, 2023
Replies
2
Views
304
Jan 16, 2023
gmcman
SOLVED!
Ringing whistle? HVAC disruption during servicing? Or?
Elizabetty
Dec 6, 2022
Replies
36
Views
2K
Jan 10, 2023
Mooseman
C
Envoy lurches slightly forward when in Park and starting.
c good
Dec 28, 2022
Replies
7
Views
616
Dec 29, 2022
Mooseman
2002 Trailblazer 2WD/AWD/4HI and 4LO
movietvet
Dec 28, 2022
Replies
3
Views
568
Dec 28, 2022
movietvet
New here and new 2002 TB to me
movietvet
Dec 21, 2022
Replies
12
Views
775
Dec 27, 2022
movietvet
R
Oil pressure from 0 to 50 until engine warmed 06 Enovy 135k miles
Robmoo
Dec 21, 2022
Replies
5
Views
646
Dec 23, 2022
Mooseman
S
Rough Idle | No Codes
Scry0402
Dec 15, 2022
Replies
3
Views
914
Dec 15, 2022
Scry0402
S
NEED HELP
Stick Dipstick!
l008com
Jul 24, 2019
Replies
38
Views
6K
Dec 7, 2022
Mooseman
P
Throttle Position %?
PLAT515
Nov 26, 2022
Replies
27
Views
2K
Dec 3, 2022
PLAT515
P
That buttery smooth engine after an oil change never lasts
l008com
Nov 4, 2022
Replies
9
Views
1K
Nov 18, 2022
l008com
C
Fluid Service interval for Transfer case?
c good
Nov 13, 2022
Replies
3
Views
466
Nov 14, 2022
c good
C
Need Recommendations for Shop to do Engine Swap
5tjss
Oct 27, 2022
Replies
5
Views
559
Oct 27, 2022
5tjss
Rough Idle
Miked
Oct 23, 2022
Replies
5
Views
806
Oct 26, 2022
TequilaWarrior
T
B
2004 envoy 4.2 engine lost oil
Ben4.2
Oct 19, 2022
Replies
2
Views
493
Oct 20, 2022
Ben4.2
B
C
Yellow Dip Stick Dilemma
c good
Oct 13, 2022
Replies
6
Views
750
Oct 16, 2022
c good
C
C
Berryman's Soak number two. Thinking about adding some aeration?
c good
Oct 12, 2022
Replies
3
Views
485
Oct 15, 2022
gmcman
C
Adding ATF to oil....how much and for how many miles?
c good
Oct 11, 2022
Replies
3
Views
578
Oct 13, 2022
Mooseman
X
NEED HELP
AC / Heater Blower working intermittently with dash lights
Xodus989
Oct 5, 2022
Replies
9
Views
833
Oct 9, 2022
Xodus989
X
Gas tank extraction pump recommendations?
JayArr
Aug 13, 2022
Replies
15
Views
1K
Oct 8, 2022
Mooseman
C
Would you put in a new Fuel Pump if it's never been replaced at 190 K miles?
c good
Oct 2, 2022
Replies
5
Views
674
Oct 5, 2022
gmcman
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