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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 4.2L I-6
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'05 TB 4.2L Coolant leak on R/H side behind wheel well
xz5cgb
Aug 25, 2014
Replies
12
Views
17K
May 2, 2018
Alec Venable
'05 GMC ENVOY TPS throttle issues
manoftheearth
Dec 21, 2022
2
Replies
57
Views
4K
Jan 18, 2023
manoftheearth
S
'03 occasionally runs rough
signalnc
Mar 15, 2015
Replies
7
Views
956
Mar 15, 2015
triz
0
'02 Trailblazer VERY rough after warmup (OK while still cold)
02TBLTZ
Feb 17, 2014
Replies
5
Views
1K
Feb 23, 2014
mrwitty_1
#5 misfiring again, now also under acceleration.
DenaliHD66
Nov 7, 2013
Replies
21
Views
2K
Nov 27, 2013
DenaliHD66
C
#2 cylinder Wet
Cooztwo
May 17, 2012
Replies
22
Views
2K
Sep 12, 2012
Cooztwo
C
T
NEED HELP
"Top End Soak" ... question
TequilaWarrior
Apr 29, 2022
Replies
11
Views
6K
May 3, 2022
TollKeeper
N
"Tinny" noise while running and after shutoff? (Video)
Nimunik
Sep 15, 2014
Replies
7
Views
1K
Sep 15, 2014
IllogicTC
"The GM Vortec LL8 Links and Specs Library"
mrrsm
Feb 24, 2017
Replies
3
Views
16K
Apr 10, 2018
ToddTNP
M
"Shudder" at idle
mcc
May 5, 2013
Replies
18
Views
2K
Sep 9, 2013
mcc
M
R
"New" (to me) 02' Envoy and I have a cylinder 2 misfire?!?
robbiegreene508
Jul 20, 2015
Replies
8
Views
1K
Aug 13, 2015
Mark20
"knocking" my head...
BVEN
Sep 26, 2015
Replies
6
Views
1K
Sep 28, 2015
Mike w
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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
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