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TrailBlazer, Envoy, 9-7x, Ascender, Rainer, & Bravada
Engine & Drivetrain
Vortec 5.3L V8
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FAQ: Vortec 5.3L V8
Mooseman
May 3, 2017
Replies
0
Views
8K
May 3, 2017
Mooseman
Normal threads
How to disable AFM/DOD at no cost
Mooseman
Mar 26, 2015
2
Replies
79
Views
170K
Jul 6, 2023
Mooseman
What is the correct fuel pressure, 5.3 engine?
AWD V8
Feb 18, 2015
Replies
5
Views
138K
Feb 19, 2015
AWD V8
Anybody got pointers on tearing down a 5.3 to fix a stuck lifter?
HizAndHerz
Jun 12, 2014
Replies
20
Views
82K
Jul 10, 2014
HizAndHerz
How to fix collapsed lifter on DOD/AFM easier
Mooseman
Nov 9, 2018
Replies
9
Views
72K
Nov 10, 2018
Mooseman
0
Low oil pressure (5.3)
08 denali
Feb 15, 2014
Replies
27
Views
46K
Mar 23, 2021
jonest3
Evap Failing to get I/M Readiness-No codes
Mooseman
Nov 28, 2014
Replies
30
Views
39K
Jul 2, 2019
j-bone
J
Rough Idle on cold start 5.3L
Bow_Tied
Jun 8, 2017
Replies
15
Views
35K
Jun 26, 2017
Bow_Tied
J
SOLVED!
Excessive STFT Issue
Jkb242
Jan 19, 2020
Replies
33
Views
35K
Jul 25, 2023
aslusser
A
(Resolved:) Rough Idle, no codes
Reprise
Dec 1, 2017
Replies
5
Views
35K
Dec 3, 2017
Mooseman
Z
Low oil pressure / stop engine warning
zippy216
Apr 23, 2012
Replies
21
Views
35K
Jul 24, 2013
BRomanJr
B
I
Valve Cover bolt order
Instrumental
Aug 2, 2013
Replies
5
Views
30K
Aug 4, 2013
STLtrailbSS
B
5.3 oil usage
Booner
Mar 20, 2013
Replies
29
Views
30K
Nov 20, 2013
northcreek
What do you get from a Resonator Delete?
l008com
Aug 13, 2016
2
Replies
51
Views
28K
Dec 7, 2016
Derrick Rucker
"Hoping... For Loping..."
mrrsm
Apr 2, 2018
2
3
Replies
119
Views
28K
Feb 13, 2023
mrrsm
How-to Envoy 5.3 starter replacement
AWD V8
May 30, 2015
Replies
14
Views
28K
Jun 11, 2023
Martyelzz4
M
Persistent p0172 and p0175
MBS1994
Aug 5, 2020
4
5
6
7
8
Replies
281
Views
26K
Jan 31, 2021
MBS1994
M
B
06 Denali 5.3L: Misfire #6 Collapsed DOD Lifter
brianvander
Nov 13, 2014
Replies
17
Views
24K
Dec 22, 2017
mrrsm
I
Misfire on Cylinder 7
Inferno333
Jan 21, 2016
2
3
Replies
82
Views
21K
Mar 20, 2016
gmcman
X
DOD Delete Question (oil system)
XxCyberhellxX
Jan 10, 2014
Replies
15
Views
20K
May 7, 2014
The_Roadie
W
Oil Pressure Low at Startup
wedge1
May 16, 2016
Replies
23
Views
18K
Jun 7, 2016
mrrsm
I
Oil Pressure Dropping and a Misfire on #1
Inferno333
Nov 1, 2015
Replies
36
Views
18K
Jan 21, 2016
Inferno333
I
T
Oil Pressure Gauge: 40 PSI engine off, 80 PSI, engine on.
TGFB87
Jan 18, 2012
Replies
5
Views
18K
Feb 29, 2012
christo829
J
SOLVED!
Disabling DOD
Jkb242
May 18, 2020
Replies
24
Views
17K
Jun 17, 2020
Mooseman
K
No ground to coils.
Khaan86
Jul 30, 2014
Replies
30
Views
17K
Sep 18, 2014
Khaan86
K
M
SOLVED!
Codes p0117, p0172, p0175
MBS1994
Feb 26, 2020
Replies
16
Views
17K
Mar 10, 2020
MBS1994
M
I
5.3 vortec envoy random misfire/ rough idle
ImmortalTechnique
Dec 28, 2018
2
Replies
40
Views
16K
Jul 24, 2022
coolasice
C
5.3 EXHAUST MANIFOLD BROKEN BOLT FIX
northcreek
Nov 16, 2017
Replies
19
Views
15K
Aug 7, 2023
tigr2000
P1682, P0689, P2176 codes and no start when warm
C-ya
Mar 28, 2019
Replies
19
Views
15K
May 9, 2021
Hawaiianbasshead
H
C
Engine trouble. Need help.
ch41
Oct 24, 2012
2
Replies
57
Views
15K
Jan 27, 2013
mrphoenix80
M
N
Collapsed lifter.......
New Envoy
Feb 14, 2017
2
Replies
71
Views
14K
Jul 21, 2017
JimB204
J
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