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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Repairs, tuning, modifications, & maintenance.
Vortec 4.2L I-6
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R
Only 3000 miles on oil, but One year old. Change filter too?
Today at 4:41 PM
Redbeard
Drivetrain
New
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
Posts
5.2K
Rate this Used Airfilter
Today at 12:20 PM
christo829
LS2 6.0L V8
40
839
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40
Posts
839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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Service Brakes, tranny slipping, spedo jumping, A/C drive hot:pass cold! No problem lights!?
GoldRainier
Aug 31, 2019
Replies
12
Views
1K
Sep 25, 2019
GoldRainier
G
Q
NEED HELP
four wheel help
Quadzilla
Sep 19, 2019
Replies
4
Views
697
Sep 20, 2019
Quadzilla
Q
NEED HELP
Persistent P2138 And Reduced Engine Power
UsernameIsTaken
Aug 27, 2019
Replies
17
Views
4K
Sep 1, 2019
UsernameIsTaken
C
NEED HELP
Valve spring retainers popped off
chaphar540
Aug 31, 2019
Replies
9
Views
4K
Aug 31, 2019
chaphar540
C
B
NEED HELP
Fuel leak
byteme
Aug 6, 2019
Replies
8
Views
1K
Aug 11, 2019
mrrsm
NEED HELP
High Negative LTFT / Poor Gas Mileage
2advanced
May 27, 2019
2
Replies
51
Views
11K
Aug 8, 2019
Tankcruiser
0
NEED HELP
2006 trailblazer no power/start
06tbrudy
Jun 4, 2019
Replies
9
Views
1K
Jun 10, 2019
06tbrudy
0
C
NEED HELP
Stalled
cretecrawler
May 26, 2019
Replies
25
Views
3K
Jun 8, 2019
cretecrawler
C
NEED HELP
Transmission wont shift out of park
dvs.dave.03ltz
Mar 14, 2019
Replies
11
Views
2K
Mar 17, 2019
Reprise
NEED HELP
2003 TB 4.2. Wont go over 5mph
Joshj517
Feb 18, 2019
Replies
9
Views
2K
Feb 21, 2019
gmcman
NEED HELP
Exhaust drone
hawkeye405
Jan 4, 2019
Replies
29
Views
6K
Jan 17, 2019
hawkeye405
NEED HELP
Speaker feedback
Traz
Jan 1, 2019
Replies
8
Views
944
Jan 7, 2019
Traz
W
NEED HELP
2WD to 4WD conversion the old school way
WonderboyT
Dec 11, 2018
Replies
5
Views
1K
Dec 12, 2018
Mooseman
NEED HELP
05 trailblazer tranny no noise or nothing
Tbluvr
Nov 16, 2018
Replies
2
Views
646
Nov 19, 2018
KEEBZ489
K
NEED HELP
Binding/grinding/thumping sound in reverse with hard right turn
C-ya
Sep 19, 2018
Replies
5
Views
930
Oct 10, 2018
Sparky
NEED HELP
Exhaust question
dna59
Sep 9, 2018
Replies
6
Views
1K
Sep 11, 2018
dna59
R
NEED HELP
ABS Light, Low Oil Pressure, Engine cut off
RedMonte85
Aug 24, 2018
Replies
4
Views
1K
Aug 28, 2018
Mooseman
NEED HELP
2006 TrailBlazer "Crank no start"
Mikefred7370
Aug 18, 2018
Replies
14
Views
2K
Aug 19, 2018
Mikefred7370
S
NEED HELP
2006 9-7x Transmission issues.
SaabNoob
Aug 11, 2018
Replies
4
Views
2K
Aug 15, 2018
SaabNoob
S
NEED HELP
Charging System Low Voltage
Robbabob
Mar 6, 2018
Replies
10
Views
1K
Mar 10, 2018
mrrsm
M
NEED HELP
front axle intermediate drive shaft
mike0714
Feb 14, 2018
Replies
5
Views
1K
Feb 19, 2018
mike0714
M
NEED HELP
4wd didn't switch to 2wd
Riktar
Jan 26, 2018
Replies
7
Views
2K
Feb 2, 2018
Riktar
NEED HELP
4WD issue
egger46
Dec 19, 2017
Replies
3
Views
1K
Jan 10, 2018
webdawg
W
NEED HELP
02 Trailblazer Transmission Replacement Issues [Solved]
SmokeyMcBlazer
Dec 16, 2017
Replies
7
Views
2K
Dec 22, 2017
Mooseman
H
NEED HELP
Coolant leak
htseat2000
Dec 15, 2017
Replies
8
Views
1K
Dec 17, 2017
NJTB
N
NEED HELP
Help With Transmission Problems
therealsethallen
Dec 3, 2017
Replies
3
Views
1K
Dec 3, 2017
Reprise
NEED HELP
Anybody Know what This is and how much to fix?
joshtheawesome
Oct 11, 2017
Replies
4
Views
2K
Oct 19, 2017
Mooseman
L
NEED HELP
Transmission problems (tcc, shifting)
Leukay
Jul 17, 2017
Replies
18
Views
4K
Sep 27, 2017
seanpooh
NEED HELP
UNKNOWN FRONT END NOISE
joshtheawesome
Sep 16, 2017
Replies
11
Views
2K
Sep 25, 2017
HARDTRAILZ
D
NEED HELP
Rear Differential identification and possible rebuild!!
darknight76
Aug 16, 2017
Replies
16
Views
5K
Sep 25, 2017
darknight76
D
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