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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?
Yesterday 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
Threads
393
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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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M
engine swap
mnmray
Feb 11, 2012
Replies
0
Views
1K
Feb 11, 2012
mnmray
M
P
Different sound/feel on take off from stop until it shifts.
phishisgr8
Dec 26, 2013
Replies
0
Views
631
Dec 26, 2013
phishisgr8
P
S
Replaced Envoy Denali 5.3L V8 Starter in an Hour
STSCowboy
Jan 22, 2020
Replies
0
Views
4K
Jan 22, 2020
STSCowboy
S
Common fluids table for gmt360
jrSS
Jul 15, 2013
Replies
0
Views
761
Jul 15, 2013
jrSS
T
Where to get info on Test IDs and Component IDs?
TonyT
Oct 11, 2012
Replies
0
Views
3K
Oct 11, 2012
TonyT
T
G
Poll
LS3 or L9H
Gibby
Jan 17, 2012
Replies
0
Views
3K
Jan 17, 2012
Gibby
G
K
Throttle Body cleaning and Seafoaming
kjkim93
Nov 2, 2012
Replies
0
Views
957
Nov 2, 2012
kjkim93
K
Low Voltage to Transmission Pressure Switch
Firebyrd91
Oct 9, 2023
Replies
0
Views
293
Oct 9, 2023
Firebyrd91
M
4.2 2003 heater hose
medic550
Jul 13, 2015
Replies
0
Views
740
Jul 13, 2015
medic550
M
How to Install a Complete Exhaust System on the LL8 4X4 Envoys & Trailblazers
mrrsm
Oct 16, 2020
Replies
0
Views
573
Oct 16, 2020
mrrsm
Transfer Case Problem
DanD
Aug 14, 2016
Replies
0
Views
824
Aug 14, 2016
DanD
C
BG Products E.P.R. Seems to be helping oil consumption
c good
Mar 17, 2024
Replies
0
Views
114
Mar 17, 2024
c good
C
SCT SF3 Power Flash
etperez22
Mar 19, 2012
Replies
0
Views
886
Mar 19, 2012
etperez22
Rear diff carrier bearings
gmac310
Jun 24, 2012
Replies
0
Views
875
Jun 24, 2012
gmac310
D
starter bolt nut size.
dp28688
Aug 9, 2012
Replies
0
Views
902
Aug 9, 2012
dp28688
D
P
Transfer Case Issue
PhilipJohn
Feb 27, 2017
Replies
0
Views
781
Feb 27, 2017
PhilipJohn
P
C
Time to lube some stuff...
CaptainXL
Feb 8, 2013
Replies
0
Views
785
Feb 8, 2013
CaptainXL
C
Lots and Lots ...of GM 4.2L Engine Swap Videos
mrrsm
Feb 17, 2018
Replies
0
Views
713
Feb 17, 2018
mrrsm
P0506 code
flyboy2610
Sep 18, 2021
Replies
0
Views
1K
Sep 18, 2021
flyboy2610
I
Trailblazer SS Rear into Non-SS Questions
impynyc
May 29, 2013
Replies
0
Views
2K
May 29, 2013
impynyc
I
P
heat shield rattling
pgibbzz
Aug 2, 2013
Replies
0
Views
655
Aug 2, 2013
pgibbzz
P
Placing my BG Cleaners order soon
DenaliHD66
May 6, 2013
Replies
0
Views
780
May 6, 2013
DenaliHD66
European 5w-30 Motor oil in our trucks
03envoy
Mar 9, 2012
Replies
0
Views
770
Mar 9, 2012
03envoy
P0107 P0122 P0223
6716
Jun 27, 2020
Replies
0
Views
719
Jun 27, 2020
6716
Timing indicator
Mark20
Feb 25, 2012
Replies
0
Views
990
Feb 25, 2012
Mark20
L
2004 Envoy P0526 code
Lisa'sEnvoy
Mar 30, 2021
Replies
1
Views
724
Mar 30, 2021
Mooseman
Beat auxiliary cooler to get
02trailblazerLS
Dec 12, 2020
Replies
1
Views
395
Dec 12, 2020
Mooseman
S
2002 Voy - Clicking Noise + Reduce Engine Power
SurJones
Apr 24, 2012
Replies
1
Views
1K
Apr 24, 2012
The_Roadie
Cold start engine noise
Medic3166
May 29, 2017
Replies
1
Views
872
May 29, 2017
mrrsm
C
Bad/Shorted Coil Pack was blowing fuse #28. It's officially solved.
c good
Nov 17, 2013
Replies
1
Views
920
Nov 17, 2013
CaptainXL
C
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