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2002 - 2009 TrailBlazer/Envoy Tech
02-09 Vortec 5.3L V8 Engine and Drivetrain
Engine Tunes/Mods
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J
'06 Envoy Denali LH6 (5.3) to LQ4 Swap (6.0)
JCP0521
Apr 5, 2019
2
2K
1 mo ago
by
Low budget production's
K
Envoy V8 Turbo. Good idea?
Kobyh
3 mo ago
0
201
3 mo ago
by
Kobyh
D
Governor
darkarchangel
Aug 16, 2007
8
6K
4 mo ago
by
Ravalli Surfer
Ecu/tcu tune issues
Aaron3Jefferson
5 mo ago
2
265
5 mo ago
by
EnvoyBoy2004
4.2L V6 Swap to 5.3L V8
Venomhatch
Aug 30, 2013
7
25K
5 mo ago
by
Bob3rd
4.2 to 5.3 Swap In Progress
2006Trail_LT
Mar 1, 2014
2
26
46K
5 mo ago
by
QWKNEZPOWER
K
Cranks but won't start
Krr74
Oct 7, 2016
8
5K
6 mo ago
by
WashedNScrewed
2004 GMC Envoy 5.3L : Timming Chain
AviatorLt1
10 mo ago
1
308
9 mo ago
by
Cheep
S
Changing Spark Plugs on 5.3 L engine
Selvig
May 25, 2009
2
3
42
48K
9 mo ago
by
Jasonhaddix
Official Thread: CAN 5.3L SWB Scangauge Codes...
bartonmd
Jul 28, 2009
2
20
11K
10 mo ago
by
Bhola Lal
Low oil pressure / stop engine warning
Zippy216
Apr 23, 2012
2
29
53K
11 mo ago
by
blaqyukon
Tuned up 5.3 Plugs Wires and Coils
antraw
May 1, 2019
6
2K
Oct 12, 2019
by
antraw
REV Ignition coils for 5.3 LH6
antraw
Sep 22, 2019
3
1K
Sep 22, 2019
by
06denaliman
J
Installed an oil catch can
Jewel red 5
May 2, 2019
2
2K
May 2, 2019
by
Jewel red 5
C
My TB build draft. Opinions welcome and appreciated
CoPats1994
Feb 28, 2019
2
721
Mar 15, 2019
by
CoPats1994
J
So tired of reading, which tuner for dod disable
jbwi112
Jan 11, 2019
9
2K
Feb 8, 2019
by
1320
B
AFM all 5.3 engines
BarnesGN
Jun 12, 2017
5
3K
Jan 11, 2019
by
Cheep
0
Predator 2 tuner
06denaliman
May 29, 2018
2
1K
Jan 11, 2019
by
jbwi112
W
What can I do to improve Gas MPG on my 06 Denali.
Whitelx1
Nov 3, 2018
0
946
Nov 3, 2018
by
Whitelx1
0
P0174 06 5.3??
06denaliman
Apr 23, 2018
3
1K
Sep 3, 2018
by
06denaliman
M
Rainier Cold Air Intake.
Marksman2696
Aug 20, 2018
4
1K
Aug 20, 2018
by
rtliquid
G
2003 trailblazer ext click won’t start
Gonepostal007
Jul 17, 2018
1
643
Jul 17, 2018
by
wstuckey1
R
Do the pros of AFM delete outway negatives? If any?
Rain
Jun 24, 2018
3
3K
Jul 11, 2018
by
Rain
R
Looking like I'm doing the AFM delete sooner than expected.
Rain
Jun 28, 2018
0
767
Jun 28, 2018
by
Rain
M
Engine over heating after highway speeds
mysickTB
Jun 17, 2018
2
1K
Jun 20, 2018
by
rcf64
M
Engine started after connecting battery cable and no key in the steering column
mysickTB
Apr 23, 2018
2
974
Jun 17, 2018
by
mysickTB
M
Sudden loss of power for 2006 Trailblazer 5.3 AFM engine
mysickTB
Mar 5, 2018
3
2K
Jun 17, 2018
by
mysickTB
J
Cylinder Miss Fire
jsspurger8395
May 17, 2018
1
806
May 17, 2018
by
princej99
I
P0601 Code - Have questions
iceflow
Apr 6, 2018
4
2K
Apr 21, 2018
by
iceflow
J
LM4 to Replace {swap} where a LH6 w/ DOD is?
Johny99
Sep 28, 2017
3
2K
Mar 8, 2018
by
Supercharged111
H
Turned off DoD/AFM, better economy/power?
Horsehaulin
Jun 1, 2017
4
1K
Mar 8, 2018
by
Supercharged111
B
Engine swap
Bigeye
Feb 14, 2018
0
714
Feb 14, 2018
by
Bigeye
F
/C pressure switch hookup for wideband in HPtuners
Fastmax32168
Dec 12, 2017
0
525
Dec 12, 2017
by
Fastmax32168
PCM Tune
LOUCARD
Oct 7, 2016
3
3K
Nov 6, 2017
by
eddinger
A
P0343 after cam swap
amrainier
Sep 6, 2017
1
1K
Sep 6, 2017
by
amrainier
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Engine Tunes/Mods
Performance Engine Tuning/Engine Modifications
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02-09 Vortec 5.3L V8 Engine and Drivetrain
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