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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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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
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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
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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U
Car Stalls won't restart.
Uncle_Joe
Aug 14, 2019
Replies
22
Views
2K
Aug 29, 2019
Mooseman
C
Testing 4WD Actuator/Disconnect?
coh998
Jul 11, 2022
Replies
22
Views
3K
Jul 22, 2022
coh998
C
Intermittent p0014 after engine swap in 02 trailblazer?
jimbrown87
Mar 24, 2017
Replies
22
Views
4K
Apr 22, 2017
Mooseman
S
Engine knock with a p0014 and p0016
smoke624
May 27, 2014
Replies
22
Views
12K
Jun 1, 2014
smoke624
S
So my Exhaust fell off today... (pics)
DenaliHD66
Sep 12, 2012
Replies
21
Views
3K
Apr 5, 2014
DDonnie
P0128 = MPG Tanked !
Shaw520
Dec 21, 2017
Replies
21
Views
3K
Apr 30, 2018
paul2005tb
M
'06 Envoy 4.2: Crank but will not start
mlkmgr
Jun 1, 2014
Replies
21
Views
13K
Jul 13, 2014
PProph
E
Parts cleaner to clean oil pickup tube
emedlin
Sep 27, 2023
Replies
21
Views
1K
Oct 2, 2023
emedlin
E
SOLVED!
CV axle will not budge
6716
Oct 3, 2020
Replies
21
Views
3K
Mar 9, 2021
Mektek
M
Humming noise while driving
C-ya
Apr 24, 2019
Replies
21
Views
3K
May 4, 2019
C-ya
S
trailblazer won't start after changing battery
spdeplayer2
Jul 12, 2015
Replies
21
Views
7K
Jul 16, 2015
BlazingTrails
O
No fuel Pressure
OIFVet0326
Aug 21, 2021
Replies
21
Views
2K
Aug 24, 2021
Mooseman
Trying to Decode my Error Code(s)
l008com
Jan 30, 2023
Replies
21
Views
1K
Feb 18, 2023
Mooseman
P0302: Cylinder 2 misfire deteced.
Blackstar
Sep 5, 2018
Replies
21
Views
3K
Oct 2, 2018
Mooseman
J
Rear seals and bearings/ waterpump
Jon Blaze
Sep 13, 2014
Replies
21
Views
2K
Dec 11, 2014
BlazingTrails
S
Hard shifting, no tc lockup
Suselman
Jul 14, 2019
Replies
21
Views
2K
Jul 20, 2019
Mooseman
C
Engine start problems
cjrich
Sep 15, 2014
Replies
21
Views
2K
Sep 25, 2014
coolasice
C
Do diff covers work or are they just bling?
Mooseman
Sep 16, 2018
Replies
21
Views
2K
Nov 10, 2018
Sparky
D
intermittent overheating
dlnelsonroca
Dec 18, 2016
Replies
21
Views
3K
Mar 28, 2017
gmcman
Suggestions on my next step (mod)
Canary2323
Jun 13, 2012
Replies
21
Views
2K
Jul 14, 2012
oh05ext
O
F
Turbo Or Supercharger?
familywagon12
Nov 17, 2012
Replies
21
Views
2K
Nov 18, 2012
Jkust
J
K
4.2 misfires , no codes...
KEEBZ489
Jan 22, 2019
Replies
21
Views
2K
Mar 25, 2019
KEEBZ489
K
temp raise after 15 min drive with AC on, but go back if i turn off AC
rolo95
Sep 1, 2023
Replies
21
Views
815
Sep 15, 2023
aaserv
I give up.....broken bolts in engine block
Voymom
May 10, 2012
Replies
21
Views
9K
May 14, 2012
Voymom
T
Transmission question
timothy918
Apr 14, 2013
Replies
20
Views
2K
May 13, 2013
dfc739
Z
No power at wide open throttle
Zx2ner88
Nov 25, 2015
Replies
20
Views
5K
May 23, 2016
Zx2ner88
Z
V
NEED HELP
Doesn’t stay running when cold
Voy07
Dec 20, 2020
Replies
20
Views
2K
Dec 24, 2020
Voy07
V
Trans Flush
Wooluf1952
Oct 10, 2012
Replies
20
Views
2K
Oct 15, 2012
Wooluf1952
B
How much does your temp gauge vary in hot weather?
bugeyed
Jun 16, 2013
Replies
20
Views
2K
Jun 21, 2013
CaptainXL
C
Trans running too cool?
Spong
Jan 18, 2012
Replies
20
Views
6K
Feb 3, 2012
neelskit
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