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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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FAQ: Vortec 4.2L I-6
Mooseman
May 1, 2017
Replies
1
Views
16K
Nov 13, 2020
Mooseman
Sticky
4.2L (LL8) DTC Engine Diagnostic Parameters
Mooseman
Oct 7, 2019
Replies
3
Views
6K
Oct 7, 2019
TJBaker57
Normal threads
Throttle Body
HARDTRAILZ
Nov 20, 2011
Replies
27
Views
2K
Dec 4, 2011
JRTAHOE
E-Fans
HARDTRAILZ
Nov 21, 2011
2
Replies
48
Views
5K
May 10, 2012
sevendj
S
Green Filter Experience
HARDTRAILZ
Nov 28, 2011
2
Replies
62
Views
8K
Oct 17, 2013
Grimor
C
Air intake
culzero
Nov 29, 2011
Replies
6
Views
2K
Dec 3, 2011
culzero
C
I6 underhood service specifications
MAY03LT
Nov 30, 2011
Replies
33
Views
13K
May 23, 2016
Mooseman
How to Clean an 4.2 Inline 6 Throttle Body
JRTAHOE
Dec 3, 2011
Replies
23
Views
13K
Jul 28, 2012
LBB
L
S
Throttle Body cleaned & plugs are changed
Steve A
Dec 4, 2011
Replies
3
Views
1K
Dec 5, 2011
Simon01
Oil cap sludge.
wiggles
Dec 5, 2011
Replies
8
Views
2K
Dec 6, 2011
Hatchet
V
P0410 Code
v7guy
Dec 5, 2011
Replies
12
Views
9K
Dec 12, 2020
mrrsm
4.2 oil consumption
Vicompc
Dec 7, 2011
2
Replies
46
Views
31K
Aug 12, 2014
Vicompc
J
Throttle Body Cleaned
jafo2424
Dec 7, 2011
Replies
8
Views
2K
Dec 7, 2011
Black_tb
J
Thermostat and ECT Replaced
jafo2424
Dec 7, 2011
Replies
5
Views
2K
Dec 19, 2011
05_ext
0
E
P0014 and P1345... please look
evoblazer
Dec 7, 2011
Replies
35
Views
8K
Feb 8, 2012
Ztryfe
Z
'07+ Cams
DenaliHD66
Dec 7, 2011
Replies
3
Views
1K
Dec 7, 2011
fishsticks
Sea foam?
fishguy1123
Dec 7, 2011
2
Replies
41
Views
7K
Feb 1, 2012
khill
M
Got my a/c bearing done!
moneypit
Dec 7, 2011
Replies
5
Views
2K
Dec 9, 2011
djthumper
S
Pcmforless Avantages
snowyredenvoy
Dec 7, 2011
2
3
Replies
88
Views
9K
Mar 7, 2012
borretje
How-To: Power Steering Pump Replacement
fishsticks
Dec 7, 2011
Replies
11
Views
19K
Feb 22, 2020
xavierny25
T
dyno numbers???
timbecht
Dec 8, 2011
Replies
8
Views
2K
Dec 9, 2011
efi-diy
E
W
4wd--No lights
wolfe99
Dec 9, 2011
Replies
3
Views
1K
Dec 9, 2011
The_Roadie
Supersparkz
07Blazerman
Dec 9, 2011
2
3
Replies
106
Views
22K
Feb 7, 2019
Blckshdw
DIY air intake with IAT sensor
Shdwdrgn
Dec 9, 2011
2
Replies
76
Views
16K
Apr 2, 2013
ShadowClutch
S
A
Another "service 4wd" issue!
AbsoluteZero
Dec 9, 2011
Replies
2
Views
1K
Dec 9, 2011
AbsoluteZero
A
7
Flushing, Draining and Filling Cooling System 150K or 5 years
70Nova SS
Dec 9, 2011
Replies
8
Views
4K
Dec 12, 2011
70Nova SS
7
4.2 Straight Piped Video
DenaliHD66
Dec 10, 2011
Replies
17
Views
2K
Dec 25, 2011
berto1014
B
Radiator Issue
wink
Dec 10, 2011
Replies
5
Views
1K
Dec 14, 2011
cjceg1985
I
Engine Block Heater
itstrick
Dec 10, 2011
Replies
3
Views
2K
Dec 11, 2011
deepblue
A
Loss of oil pressure at idle
adlegs
Dec 11, 2011
Replies
9
Views
8K
Dec 30, 2011
RayVoy
N
Engine surging hunting while on highway
NatesGr8
Dec 13, 2011
Replies
17
Views
2K
Apr 2, 2012
The_Roadie
fan clutch replacement questions
Tofer76
Dec 13, 2011
Replies
36
Views
3K
Feb 10, 2012
barron03
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