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2002 - 2009 TrailBlazer/Envoy Tech
02-09 Vortec 5.3L V8 Engine and Drivetrain
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OEM Issues
Original Equipment Repairs and/or Problems
8.3K
6.2M
27 d ago
8.3K
6.2M
27 d ago
Air Induction
Performance Air Intake/Air Induction Modifications
826
660K
Aug 1, 2019
826
660K
Aug 1, 2019
Exhaust Mods
Performance Exhaust Modifications
1.2K
2.3M
22 h ago
1.2K
2.3M
22 h ago
Engine Tunes/Mods
Performance Engine Tuning/Engine Modifications
3.2K
2.4M
4 d ago
3.2K
2.4M
4 d ago
Transmission Mods
Performance Transmission Modifications
798
750K
2 mo ago
798
750K
2 mo ago
4x4 Drivetrain
4x4 Repairs & Problems
2.9K
2.1M
25 d ago
2.9K
2.1M
25 d ago
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Jman423
Mar 5, 2008
Locked
0
11K
Mar 5, 2008
by
Jman423
G
2005 LH6 trailblazer lm7 swap
GabeRH
6 mo ago
2
363
12 d ago
by
VoyBoy919
G
2007 Denali 5.3 -- 260K - about to replace trans cooler lines; what lifespan to expect from denali ?
GraphiteDenali
18 d ago
1
128
18 d ago
by
Mad Russian
07’ afm delete parts list
JM 07
2 mo ago
2
21
720
22 d ago
by
JM 07
Aluminum radiator/electric fan for 5.3 envoy denali HELP!
derekmaloney85
1 mo ago
0
158
1 mo ago
by
derekmaloney85
5.3 new high oil pressure gauge reading
WYOVERLANDER
1 mo ago
1
124
1 mo ago
by
TJBaker
Transmission
Rebelmommaof3
2 mo ago
15
402
1 mo ago
by
Ravalli Surfer
M
06 Envoy Denali XL odd issues .. related?
merlinof2
2 mo ago
2
185
2 mo ago
by
merlinof2
4L60 to 4L65 upgrade
envoynali07
3 mo ago
5
273
3 mo ago
by
Ravalli Surfer
T
2008 ENVOY DENALI 5.3 CAM POSITION SENSOR REPLACEMENT
tomkatohio
3 mo ago
5
288
3 mo ago
by
Ravalli Surfer
Gear ratio?
06DenaliJosh
6 mo ago
3
300
5 mo ago
by
Schurkey
Looking for pinout
musicjunkie1908
6 mo ago
1
169
6 mo ago
by
Vega_TB
Service Stabilitrack question
Sparkie's Mower Service
7 mo ago
2
249
7 mo ago
by
Sparkie's Mower Service
5
The Head Gasket Install has Gone Awry
5.3jus4me
7 mo ago
2
3
47
2K
7 mo ago
by
Ravalli Surfer
R
Timing cover question
RamElliot
9 mo ago
2
23
897
7 mo ago
by
Ravalli Surfer
P0740 P0785 P1860
fastjjc
8 mo ago
0
225
8 mo ago
by
fastjjc
Vacuum port?
Ricstar59
9 mo ago
0
191
9 mo ago
by
Ricstar59
Odd transmission behavior: 2006 Envoy Denali
Steve T
11 mo ago
7
539
11 mo ago
by
Steve T
B
5.3 Limp Mode issue (P060E and P0121)
bigbasec1
12 mo ago
5
930
12 mo ago
by
bigbasec1
B
Opinions on tech2 knock off or Vcx nano or ?
Blazentpi
Mar 14, 2022
1
373
Mar 17, 2022
by
Schurkey
B
Clunking noise when shutting off vehicle or going into reverse.
bpglue
Feb 18, 2022
0
336
Feb 18, 2022
by
bpglue
Intermittent no start no crank
Clkish1988
Jan 28, 2022
4
586
Feb 11, 2022
by
Supercharged111
AFM OIL BYPASS STICKING OPEN AFTER HIGH RPM PULLS W
blueblazer5_3
Jan 25, 2022
0
290
Jan 25, 2022
by
blueblazer5_3
AFM delete=no oil pressure
FamilymanGT
Dec 23, 2021
5
2K
Jan 25, 2022
by
Supercharged111
U
All dash lights on
uhlenhopp09
Dec 23, 2021
9
584
Jan 20, 2022
by
Ravalli Surfer
Need help
Dustinmccall
Jan 16, 2022
1
492
Jan 20, 2022
by
yeagamyster04
Great buy or no go??
Justmy2¢
Jun 5, 2021
12
1K
Dec 18, 2021
by
cage47
S
5.3 radiator fan shroud
Scooter01
Dec 5, 2021
3
563
Dec 5, 2021
by
nnorton44
S
Aftermarket Flexplates? 5.3 Vortec
STSCowboy
Sep 30, 2021
5
516
Oct 8, 2021
by
DDS-029
G
07' envoy denali transmission oil change?
GraphiteDenali
Oct 5, 2021
3
787
Oct 6, 2021
by
NJTB04
G
07' envoy 5.3v8 has blinking engine lite on cruise when towing ?
GraphiteDenali
Sep 26, 2021
2
445
Oct 2, 2021
by
Schurkey
A
2008 Envoy Denali 5.3L AFM delete/cam upgrade?
Amateur hour
Sep 19, 2021
2
1K
Sep 30, 2021
by
Scooter172
A
Changing cam and valve springs
Amateur hour
Sep 24, 2021
0
350
Sep 24, 2021
by
Amateur hour
Throttle position sensor / Throttle body
BenG12
Sep 16, 2021
1
531
Sep 20, 2021
by
Vega_TB
M
Vibration/Rumble in gas peddle
Mjmcfarl3
Aug 18, 2021
3
437
Aug 20, 2021
by
Ravalli Surfer
C
New Crankshaft Sensors Won't Run
CycleCraft
Jul 21, 2021
0
395
Jul 21, 2021
by
CycleCraft
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02-09 Vortec 5.3L V8 Engine and Drivetrain
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