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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?
Tuesday at 4:41 PM
Redbeard
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
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40
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839
H
Cylinder 6 Misfire Mystery
Nov 20, 2023
highlander
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NEED HELP
Valve spring retainers popped off
chaphar540
Aug 31, 2019
Replies
9
Views
4K
Aug 31, 2019
chaphar540
C
NEED HELP
UNKNOWN FRONT END NOISE
joshtheawesome
Sep 16, 2017
Replies
11
Views
2K
Sep 25, 2017
HARDTRAILZ
NEED HELP
Transmission wont shift out of park
dvs.dave.03ltz
Mar 14, 2019
Replies
11
Views
2K
Mar 17, 2019
Reprise
J
NEED HELP
Transmission will not shift into any gear
James Benge
Feb 28, 2017
Replies
3
Views
981
Mar 3, 2017
Hatchet
L
NEED HELP
Transmission problems (tcc, shifting)
Leukay
Jul 17, 2017
Replies
18
Views
4K
Sep 27, 2017
seanpooh
NEED HELP
Transmission jerks at 50-60 mph
rene_320
Jan 24, 2017
Replies
10
Views
2K
Feb 1, 2017
gmcman
NEED HELP
Transfer Case Module disconnected !
yazan
Aug 25, 2016
Replies
2
Views
964
Aug 25, 2016
yazan
H
NEED HELP
Trailblazer Overheating / Coolant
Hoop1101
Nov 21, 2016
Replies
19
Views
18K
Dec 12, 2016
mrrsm
NEED HELP
Trailblazer cranking but won't start
keile
Jan 19, 2017
Replies
9
Views
1K
Jan 23, 2017
keile
NEED HELP
Temperature hoses???
JK171
Feb 23, 2016
Replies
9
Views
1K
Feb 24, 2016
Mooseman
NEED HELP
TB EXT dropping out of gear, overheating
Charles Austin Miller
Jul 17, 2017
2
Replies
40
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3K
Jul 26, 2017
jsheahawk
NEED HELP
Stick Dipstick!
l008com
Jul 24, 2019
Replies
38
Views
6K
Dec 7, 2022
Mooseman
C
NEED HELP
Starter only clicks
cretecrawler
Mar 21, 2021
Replies
18
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2K
Mar 23, 2021
cretecrawler
C
C
NEED HELP
Stalled
cretecrawler
May 26, 2019
Replies
25
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3K
Jun 8, 2019
cretecrawler
C
NEED HELP
Speaker feedback
Traz
Jan 1, 2019
Replies
8
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948
Jan 7, 2019
Traz
NEED HELP
Shifter locked in neutral
Drec
Jul 28, 2022
Replies
14
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1K
Aug 2, 2022
Drec
G
NEED HELP
Service Brakes, tranny slipping, spedo jumping, A/C drive hot:pass cold! No problem lights!?
GoldRainier
Aug 31, 2019
Replies
12
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1K
Sep 25, 2019
GoldRainier
G
R
NEED HELP
Separating Transmission From Engine 2003 TB EXT 4.2L I6 4x4
Reed
Dec 7, 2015
Replies
3
Views
1K
Dec 13, 2015
mrrsm
S
NEED HELP
saab97x5.3i Where are the rust spots on the transmission tubes?
Sprung Monkey
Aug 14, 2020
Replies
11
Views
1K
Aug 29, 2020
gmcman
G
NEED HELP
Runs drives fine cold warms up and stalls no restart
Gogo5o
Nov 5, 2019
Replies
17
Views
3K
Nov 15, 2019
Maverick6587
NEED HELP
Reverse Coolant Flush?
RyanEAS
Jan 17, 2016
Replies
5
Views
1K
Jan 18, 2016
linneje
NEED HELP
Replacing LH bearing in front diff, have questions.
gmcman
Mar 7, 2021
Replies
19
Views
2K
Mar 19, 2021
gmcman
NEED HELP
Recommended Exhaust Manifold Replacement?
MrShelley
Oct 14, 2021
Replies
15
Views
2K
Jan 30, 2022
Schurkey
D
NEED HELP
Rear Differential identification and possible rebuild!!
darknight76
Aug 16, 2017
Replies
16
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5K
Sep 25, 2017
darknight76
D
B
NEED HELP
Question 🤔
Bronsonc1856
Aug 4, 2021
Replies
2
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458
Aug 4, 2021
Redbeard
R
NEED HELP
Possible bad fuel pump (confirmation needed)
ghost_leader07
Nov 8, 2023
Replies
28
Views
973
Nov 14, 2023
mrrsm
T
NEED HELP
Please, help accessing front 3 bolts on oil pan in order to remove it.
Tatsun
Mar 20, 2024
Replies
2
Views
180
Mar 20, 2024
Mooseman
NEED HELP
Persistent P2138 And Reduced Engine Power
UsernameIsTaken
Aug 27, 2019
Replies
17
Views
4K
Sep 1, 2019
UsernameIsTaken
NEED HELP
P1221 Only with A/C on
Ric_Whit
Aug 19, 2022
Replies
8
Views
1K
Aug 20, 2022
mrrsm
B
NEED HELP
P0976
Backwoods16
Mar 14, 2016
Replies
4
Views
1K
Mar 15, 2016
Backwoods16
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