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
Prev
1
2
3
4
5
6
7
…
Go to page
Go
85
Next
First
Prev
5 of 85
Go to page
Go
Next
Last
Sort by:
Replies
Descending
Filters
Show only:
Loading…
well I'm at a loss
eyepopn
May 10, 2015
2
Replies
46
Views
4K
May 30, 2015
eyepopn
S
Kooks headers - Go green or not?
SkidMark
Dec 29, 2014
2
Replies
45
Views
6K
Jan 27, 2015
redmaro42
R
Timing chain tensioner gone bad?
Revans381996
Mar 6, 2014
2
Replies
45
Views
35K
Mar 12, 2014
AbsoluteZero
A
Vibrations when sitting in drive
Aukland
Jan 12, 2012
2
Replies
45
Views
47K
Sep 30, 2016
paulcmartin
D
Hesitation at full throttle, sometimes partial.
deerslayer1985
Feb 11, 2017
2
Replies
44
Views
6K
Jul 14, 2017
deerslayer1985
D
My Hannukah Gift to Myself that Arrived on Christmas Eve :)
Pittdawg
Dec 24, 2011
2
Replies
44
Views
4K
Jun 29, 2012
Pittdawg
8
coolant drain and refill vs flush system
808trailblazer
Oct 31, 2013
2
Replies
44
Views
21K
Mar 10, 2014
jes1888
J
Rather specific transmission concerns...
RayGumm
Jun 19, 2014
2
Replies
44
Views
3K
Jul 6, 2014
Mooseman
Rough idle and misfiring, but no codes
Blckshdw
Mar 16, 2012
2
Replies
43
Views
43K
Dec 18, 2014
Dillyo82
M
P1133 Upstream O2 Sensor Diagnostics
mngopher22
Aug 28, 2012
2
Replies
43
Views
18K
Dec 24, 2014
bobdec
B
B
no fuel pressure at tank or engine?
bspurloc
Apr 24, 2014
2
Replies
43
Views
2K
Apr 28, 2014
IllogicTC
What Diff fluid does everyone run?
CruzinQueen
Feb 16, 2012
2
Replies
43
Views
5K
Mar 15, 2016
gmcman
Low MPG stumbles @ idle Code P0014
xx_gearhead_xx
Aug 28, 2013
2
Replies
43
Views
5K
Feb 4, 2014
IllogicTC
Comprehensive E-Fan Thread
DenaliHD66
Mar 16, 2013
2
Replies
43
Views
4K
Nov 3, 2013
jbacklund
Removing engine and transmission together
W4UWC
Jan 8, 2020
2
Replies
43
Views
10K
Apr 2, 2020
W4UWC
Engine ticking, possible to quiet it down?
Mike534x
Apr 9, 2012
2
Replies
43
Views
4K
May 13, 2013
Mike534x
U
transmission cooler lines
Uncleenvoy
Jul 6, 2020
2
Replies
42
Views
3K
Jul 24, 2020
Uncleenvoy
U
M
Idle RPM surged then hung at 1K ?
Mypetropig
Mar 19, 2012
2
Replies
42
Views
4K
May 7, 2012
Mypetropig
M
M
Easiest way to flush coolant? 04 tb
matts04tbls
Nov 30, 2012
2
Replies
42
Views
5K
Feb 10, 2013
Tmn8tr
T
What you guys think of this Kooks Exhaust Header?
DIY Fixer
Jan 31, 2016
2
Replies
42
Views
7K
May 17, 2016
therealsethallen
Wheel hub assembly failure?
Busterbrown
Dec 4, 2012
2
Replies
42
Views
13K
Feb 19, 2013
tom1999d
T
Clicking noise in engine....fan clutch??
05EnvoyXL
Feb 11, 2013
2
Replies
42
Views
18K
Feb 18, 2013
meerschm
Supersparkz Review
03envoy
Apr 20, 2012
2
Replies
42
Views
5K
Jun 18, 2012
RayVoy
Why you may need to clean a 4.2L I6 Throttle Body
trailblazer075
Dec 17, 2011
2
Replies
41
Views
31K
Oct 1, 2013
bLAzen03
Anyone drive in 3rd in the city?
AzTruckGuy
Aug 3, 2016
2
Replies
41
Views
3K
Jan 28, 2017
AzTruckGuy
Anyone with the I6 Headers please look.
XUVFISCH
Aug 16, 2013
2
Replies
41
Views
4K
Sep 25, 2013
ScarabEpic22
So is my engine toast?
AzTruckGuy
Dec 13, 2015
2
Replies
41
Views
5K
Aug 15, 2016
Big B Jantzen
It's never ending..p1345 and p0014
Voymom
Mar 5, 2012
2
Replies
41
Views
11K
Mar 6, 2012
Voymom
Y
07 trailblazer 4.2L crank . no start
Yoda222
Jun 14, 2022
2
Replies
41
Views
4K
Jun 25, 2022
Mooseman
Sea foam?
fishguy1123
Dec 7, 2011
2
Replies
41
Views
7K
Feb 1, 2012
khill
Prev
1
2
3
4
5
6
7
…
Go to page
Go
85
Next
First
Prev
5 of 85
Go to page
Go
Next
Last
You must log in or register to post here.
Forum Statistics
Threads
23,273
Posts
637,488
Members
18,472
Latest member
MissCrutcher
Members Online
flyboy2610
santon
Bluecorp
movietvet
wags69
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