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Forums
TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 5.3L V8
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5.3 Dyno Pull
TXBlazer
May 28, 2012
Replies
21
Views
7K
Jan 19, 2016
warriorpluto
J
coolant in oil where to start
j-bone
Dec 21, 2015
Replies
9
Views
2K
Jan 18, 2016
Horsehaulin
H
N
03 Envoy XL 5.3 Misfire P0302, read all threads need more help
NYTrailman
Jan 4, 2016
Replies
8
Views
2K
Jan 9, 2016
gmcman
Oil consumption report
C-ya
Jul 26, 2014
2
Replies
49
Views
6K
Jan 7, 2016
mrrsm
E
Power Steering not working
EyeAmRed2U
Dec 9, 2015
Replies
9
Views
2K
Dec 11, 2015
smt 59
0
Yet another no start...
02gtp
Oct 11, 2015
Replies
10
Views
2K
Oct 23, 2015
02gtp
0
How does the new valley cover look
warriorpluto
Sep 25, 2015
Replies
11
Views
2K
Oct 4, 2015
warriorpluto
Another Battery in 4 years
ChriSS K
Sep 21, 2015
Replies
12
Views
2K
Sep 24, 2015
Mooseman
Bad thermostat?
Mike534x
Aug 15, 2015
Replies
21
Views
3K
Aug 20, 2015
Mike534x
Ordered a tune from PCM of NC
07Denali
Aug 12, 2015
Replies
9
Views
5K
Aug 16, 2015
Mooseman
Changing upstream O2 in V8
linneje
Apr 7, 2015
Replies
9
Views
1K
Aug 10, 2015
linneje
D
2006 Denali Road 1500+ Mi Road Trip - Fingers crossed
Dan_G
Aug 4, 2015
Replies
8
Views
1K
Aug 10, 2015
Mounce
C
Air Conditioner Not Working Right
Chuck Bunyon
Aug 2, 2015
Replies
8
Views
2K
Aug 4, 2015
Texan
Trailblazer EXT 5.3 Dual Exhaust
silverstar020
Jun 19, 2015
Replies
4
Views
3K
Aug 3, 2015
northcreek
Wanted tips for replacing the starter on a 5.3 Envoy
AWD V8
May 28, 2015
Replies
3
Views
1K
Aug 2, 2015
warriorpluto
E
A/C Clutch not engaging after replacing clutch bearing
EyeAmRed2U
Jun 1, 2014
Replies
22
Views
3K
Aug 2, 2015
Bryonjodinolan
B
Fan clutch-AGAIN
Paul Bell
Jul 26, 2015
Replies
16
Views
4K
Jul 28, 2015
littleblazer
D
2006 Envoy Denali - 5.3 water pump replacement
Dan_G
Nov 25, 2014
Replies
7
Views
12K
Jul 16, 2015
Dan_G
D
Z
well this sucks!!
Zack2003
May 4, 2015
Replies
23
Views
2K
Jun 17, 2015
Paul Bell
Cylinder head casting number for 5.3?
xx_gearhead_xx
Jun 13, 2015
Replies
2
Views
10K
Jun 15, 2015
RedRocketZ28
A
Motor Mounts.. how long does it take to replace?
Anton
Jun 13, 2015
Replies
2
Views
2K
Jun 14, 2015
stickypoop
S
E
Engine Compartment Fuse Block
eadye4970
May 28, 2015
Replies
11
Views
2K
May 29, 2015
AtlWrk
W
DOD/AFM Concerns
wedge1
May 2, 2015
Replies
20
Views
4K
May 29, 2015
C-ya
Dumb truck starts every time!!
AWD V8
May 7, 2015
Replies
37
Views
2K
May 20, 2015
AWD V8
M
02 Sensor info
MoJoRisin'
Jan 11, 2013
Replies
9
Views
2K
May 10, 2015
ALgndNMyOwnMnd
Overheating problem solved
AWD V8
May 9, 2015
Replies
2
Views
3K
May 10, 2015
AWD V8
when to change factory plugs and wires
ChriSS K
May 6, 2015
Replies
10
Views
1K
May 7, 2015
Robbabob
Collapsed a lifter and feeling out the options
smitty5150
Apr 27, 2015
Replies
38
Views
7K
May 5, 2015
smitty5150
5.3L V8 Surge / Pulse at idle ?
TimRXUV777
Apr 2, 2015
Replies
5
Views
2K
Apr 23, 2015
Mooseman
Suggestions for Performance Camshaft for 2005 Trailblazer EXT 5.3L V8
ahhyeah
Mar 18, 2015
Replies
14
Views
7K
Apr 6, 2015
C-ya
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Engine & Drivetrain
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