Search
Everywhere
Threads
This forum
Search titles only
By:
Everywhere
Threads
This forum
Search titles only
By:
Forums
Search forums
What's New?
New Posts
Latest activity
Latest activity
Members
Registered members
Current visitors
Site Rules
Cookie Policy
Privacy Policy
Donate
Forums
Log in
Register
Search
Everywhere
Threads
This forum
Search titles only
By:
Everywhere
Threads
This forum
Search titles only
By:
Search forums
Log in
Register
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
1
2
3
…
Go to page
Go
85
Next
1 of 85
Go to page
Go
Next
Last
Sort by:
Views
Ascending
Filters
Show only:
Loading…
Sticky threads
Sticky
4.2L (LL8) DTC Engine Diagnostic Parameters
Mooseman
Oct 7, 2019
Replies
3
Views
6K
Oct 7, 2019
TJBaker57
Locked
Sticky
FAQ: Vortec 4.2L I-6
Mooseman
May 1, 2017
Replies
1
Views
16K
Nov 13, 2020
Mooseman
Normal threads
2002 TB running great
movietvet
Apr 17, 2024
Replies
0
Views
76
Apr 17, 2024
movietvet
C
Only 3000 miles on oil, but One year old. Change filter too?
c good
Tuesday at 1:24 PM
Replies
6
Views
101
Tuesday at 4:41 PM
Redbeard
R
C
OEM Thermostat Temperature
Camdo
Friday at 12:28 PM
Replies
10
Views
158
Friday at 8:07 PM
Mike534x
T
part number search: rubber plug for flexplate bolt access hole
tcell70
Jan 11, 2024
Replies
2
Views
170
Jan 12, 2024
mrrsm
S
Heat shield
Stuntmanmike1977
Feb 25, 2024
Replies
2
Views
245
Feb 26, 2024
Mooseman
C
Electric oil pressure gauge or true oil pressure gauge?
c good
Feb 5, 2024
Replies
3
Views
250
Feb 5, 2024
mrrsm
An Insurmountable Problem? Or Is There A Novel Way To Restrain The Timing Chain Against The Lower Crankshaft Cog?
mrrsm
Jan 3, 2024
Replies
1
Views
274
Jan 3, 2024
c good
C
C
Interesting 4.2 GM video
c good
Jan 21, 2024
Replies
0
Views
282
Jan 21, 2024
c good
C
NEED HELP
Looking for info on testing COP, good ohm range
Drec
Oct 25, 2023
Replies
1
Views
323
Oct 25, 2023
TJBaker57
O2 Sensor Recommendation please?
jmonica
Mar 10, 2024
Replies
8
Views
329
Mar 16, 2024
jmonica
W
4.2 xuv water pump and coolant
WookieeUK
Feb 15, 2024
Replies
7
Views
352
Feb 17, 2024
WookieeUK
W
Coolant pouring out of reservoir when trying to fill
jmonica
Jun 24, 2023
Replies
3
Views
382
Jun 25, 2023
Blckshdw
NEED HELP
VVT disassembly information needed.
cornchip
Mar 23, 2023
Replies
1
Views
406
Mar 24, 2023
mrrsm
J
4x4 Help
jmabs509
Mar 14, 2021
Replies
0
Views
452
Mar 14, 2021
jmabs509
J
E
2005 Envoy Cranks will not start.
Envoywarrior
Aug 28, 2023
Replies
5
Views
477
Aug 29, 2023
Envoywarrior
E
A
Crank shaft seal leaking
alexander8387
May 14, 2021
Replies
1
Views
479
May 14, 2021
aaserv
B
06 Saab 9-7X AC over pressure valve
Berns
Dec 7, 2017
Replies
2
Views
483
Dec 7, 2017
Berns
B
R
NEED HELP
Chamfer
Rockitt1964
Nov 22, 2020
Replies
1
Views
497
Nov 29, 2020
aaserv
2005 TB Sluggish Start ONLY After Gas Fill-Up
Charles Austin Miller
Nov 18, 2020
Replies
1
Views
509
Nov 18, 2020
BrianF
B
A
Envoy 06 4.2 ll8 engine swap, Donor Envoy 2008
Arth
Jul 2, 2019
Replies
1
Views
522
Jul 2, 2019
Mooseman
Car Stalls at the same place everyday only in mornings
Axel
Feb 26, 2023
Replies
0
Views
522
Feb 26, 2023
Axel
J
SOLVED!
Alternator not charging
joe mama
Nov 22, 2023
Replies
3
Views
531
Nov 24, 2023
joe mama
J
Difference in O2 sensors pre/post engine mods?
JayArr
Oct 20, 2018
Replies
1
Views
541
Oct 20, 2018
Mooseman
Multimeter voltage question at fuses
Elizabetty
Mar 11, 2023
Replies
8
Views
545
Mar 11, 2023
Mooseman
Temp Higher than Usual?
shovenose
Jul 26, 2016
Replies
2
Views
546
Jul 27, 2016
Mooseman
T
Hard Start Followed by Shifting Problems
TrailBlaz05
May 11, 2021
Replies
0
Views
547
May 11, 2021
TrailBlaz05
T
S
blend door actuator malfunction
sweettsinger
Jul 14, 2023
Replies
2
Views
547
Jul 14, 2023
Mooseman
S
Intermittent ABS light and RPM surge
S13Hitman
Sep 28, 2018
Replies
1
Views
553
Sep 28, 2018
Mooseman
R
2004 trailblazer no crank no start
Randall350
Jan 4, 2024
Replies
8
Views
553
Jan 16, 2024
Mooseman
R
Help with 4l60e wont do nothing
Robmartin
Apr 13, 2018
Replies
1
Views
555
Apr 13, 2018
Mooseman
1
2
3
…
Go to page
Go
85
Next
1 of 85
Go to page
Go
Next
Last
You must log in or register to post here.
Forum Statistics
Threads
23,330
Posts
637,988
Members
18,532
Latest member
timmerk
Members Online
l008com
chevius
northcreek
Share This Page
Share This Page
Share
Facebook
Reddit
Pinterest
Tumblr
WhatsApp
Email
Share
Link
Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Top
Bottom