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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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Ported throttle body
Dirty 30
Aug 7, 2009
15
12K
2 d ago
by
ale.anz
Best 06 5.3 replacement
Envoy2win
2 mo ago
8
371
10 d ago
by
VoyBoy919
Tuner for 4.2L?
CHEVYMEX04
Aug 24, 2008
Locked
14
24K
27 d ago
by
pdcomm
2008 chevy trailblazer
jess88
4 mo ago
2
258
4 mo ago
by
jess88
4.2 to 5.3 Swap In Progress
2006Trail_LT
Mar 1, 2014
2
36
66K
4 mo ago
by
Salcedo1319
S
Electric Fan Installation
Sweski
Mar 16, 2010
2
21
23K
4 mo ago
by
williamsoa7791_3199
N
5.3 swap to colorado
nastynova62
May 17, 2010
8
12K
5 mo ago
by
queerbrownvegan
T
VVT Mod to adjust exhaust timing
TBProject
11 mo ago
3
363
11 mo ago
by
Ravalli Surfer
G
programmers
goneboatin
11 mo ago
0
340
11 mo ago
by
goneboatin
R
Banks- Pedal Monster
racer14ts
12 mo ago
2
341
12 mo ago
by
Ravalli Surfer
P
O2 Sensor
Peaches_Sabrina
Jan 24, 2022
3
560
Jan 25, 2022
by
Schurkey
B
The "Homemade TBSS"
btempyy
Jan 7, 2022
6
808
Jan 8, 2022
by
btempyy
J
[SOLVED]
06 Envoy DENALI 5.3l v8 PO307
Jkb242
Mar 9, 2017
12
11K
Oct 28, 2021
by
Ravalli Surfer
G
Lh6 performance
GMCPARTS1
Dec 6, 2016
3
4K
Sep 30, 2021
by
Scooter172
D
05 Trail ext V8 5.3l upgrades
dalejrfan
Mar 9, 2006
2
3
44
33K
Aug 10, 2021
by
Wolf 999
B
engine oil cooler
Boyce01
Jun 25, 2021
0
557
Jun 25, 2021
by
Boyce01
A
Starter Reliability / Change starter while Pulling a 5.3Lengine?
Ambient
Apr 14, 2021
0
331
Apr 14, 2021
by
Ambient
J
'06 Envoy Denali LH6 (5.3) to LQ4 Swap (6.0)
JCP0521
Apr 5, 2019
3
4K
Apr 6, 2021
by
MikesGM
4.2L V6 Swap to 5.3L V8
Venomhatch
Aug 30, 2013
8
34K
Feb 26, 2021
by
l008com
K
Envoy V8 Turbo. Good idea?
Kobyh
Oct 13, 2020
1
1K
Feb 26, 2021
by
l008com
D
Governor
darkarchangel
Aug 16, 2007
8
8K
Oct 1, 2020
by
Ravalli Surfer
Ecu/tcu tune issues
Aaron3Jefferson
Aug 13, 2020
2
1K
Sep 7, 2020
by
EnvoyBoy2004
K
Cranks but won't start
Krr74
Oct 7, 2016
8
8K
Jul 16, 2020
by
WashedNScrewed
2004 GMC Envoy 5.3L : Timming Chain
AviatorLt1
Apr 6, 2020
1
677
Apr 30, 2020
by
Cheep
S
Changing Spark Plugs on 5.3 L engine
Selvig
May 25, 2009
2
3
42
55K
Apr 16, 2020
by
Jasonhaddix
Official Thread: CAN 5.3L SWB Scangauge Codes...
bartonmd
Jul 28, 2009
2
20
12K
Mar 31, 2020
by
Bhola Lal
Low oil pressure / stop engine warning
Zippy216
Apr 23, 2012
2
29
72K
Feb 26, 2020
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
2K
Sep 22, 2019
by
06denaliman
J
Installed an oil catch can
Jewel red 5
May 2, 2019
2
3K
May 2, 2019
by
Jewel red 5
C
My TB build draft. Opinions welcome and appreciated
CoPats1994
Feb 28, 2019
2
1K
Mar 15, 2019
by
CoPats1994
J
So tired of reading, which tuner for dod disable
jbwi112
Jan 11, 2019
9
5K
Feb 8, 2019
by
1320
B
AFM all 5.3 engines
BarnesGN
Jun 12, 2017
5
5K
Jan 11, 2019
by
Cheep
0
Predator 2 tuner
06denaliman
May 29, 2018
2
3K
Jan 11, 2019
by
jbwi112
0
P0174 06 5.3??
06denaliman
Apr 23, 2018
3
2K
Sep 3, 2018
by
06denaliman
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ale.anz
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VoyBoy919
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mahollowman
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2002 - 2009 TrailBlazer/Envoy Tech
02-09 Vortec 5.3L V8 Engine and Drivetrain
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