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2002 - 2009 TrailBlazer/Envoy Tech
02-09 Vortec 4.2L I-6 Engine and Drivetrain
OEM Issues
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263
Sticky
Poor A/C at idle
Jman423
Jun 18, 2005
20
21
22
423
242K
Sep 11, 2023
by
chem_man
A
Rough idle/ low oil pressure/ no codes
Aero-Hoonigan
3d ago
6
140
1d ago
by
chem_man
E
parasitic drain caused by TBC 3?
eholland353
Dec 30, 2010
6
5K
1d ago
by
Ravalli Surfer
Low Oil Pressure at Idle - How Check Oil Pressure (2004 LS Extended with i6 motor)
SirTrailBlazer
Sep 19, 2023
2
3
102
5K
2d ago
by
Ravalli Surfer
K
P0023 obd code on Vortec 4.2L 6 cylinder?
kenzoil
3d ago
3
74
2d ago
by
Ravalli Surfer
A
Envoy with muiltple codes and drivability issues after new fuel pump
aaron19922
7d ago
5
197
5d ago
by
chem_man
F
Shifting issues.
foxridersc013
6d ago
2
110
6d ago
by
metalmike187
B
2003 4.2L Brake line and wire loom blocking front of oil pan during removal
BrentS2288
Mar 8, 2024
0
67
Mar 8, 2024
by
BrentS2288
Rmp fixed at 1000
virgiliolvp
Mar 4, 2024
11
188
Mar 8, 2024
by
Ravalli Surfer
K
easiest way to replace power steering cooler
kilroylarry
Sep 14, 2009
2
53
117K
Mar 4, 2024
by
Ravalli Surfer
F
2006, trailblazer 4.2 L shifting in the overdrive before it needs to does anybody have tho fix?
foxridersc013
Feb 27, 2024
2
194
Mar 4, 2024
by
foxridersc013
G
Stumped on Throttlebody issues
GypsieEnvoy
Feb 23, 2024
20
736
Mar 1, 2024
by
Ravalli Surfer
O
Rough idle and chugging converter smell
Oldguy65
Feb 21, 2024
34
920
Feb 27, 2024
by
tinmanwpk
D
2002 Instrument Cluster Battery Drain
DanNvoy
Feb 26, 2024
1
104
Feb 26, 2024
by
Ravalli Surfer
D
Is it just me or are GMC Envoy's Junk!?
Diznasty
Jul 22, 2011
2
3
104
23K
Feb 25, 2024
by
Ravalli Surfer
J
Fan Clutch Removal Tools Question
johnny loops
May 24, 2017
10
13K
Feb 25, 2024
by
Bex914
Corrosion on the bar above the battery
chevtrlblzr
Feb 17, 2008
16
4K
Feb 21, 2024
by
Signmaster
A
Tranny hard shift
andy_g_02
Dec 1, 2009
21
27K
Feb 20, 2024
by
Darrian95
T
4th gear issue
timstover
Aug 20, 2018
10
3K
Feb 18, 2024
by
Ravalli Surfer
Car randomly shuts off but starts right back up with out a problem.
Axel_Bootyman
Feb 15, 2024
20
372
Feb 17, 2024
by
Ravalli Surfer
No crank no start no check engine light
ashleymaidenlane
Feb 11, 2024
7
368
Feb 13, 2024
by
ashleymaidenlane
need advise p0440 code
loangod911
Jan 20, 2010
2
55
40K
Feb 11, 2024
by
Ravalli Surfer
T
Throttle problem
TerryJr.
Feb 2, 2024
11
339
Feb 10, 2024
by
Ravalli Surfer
J
Rough idle and random misfire
Jordan Wilson
Feb 4, 2024
3
272
Feb 8, 2024
by
2002 TB LS
E
2006 GMC Envoy P0442 & P0455 - need smoke
EddieTheEnvoy
Oct 13, 2022
2
47
2K
Feb 8, 2024
by
TJBaker
G
2007 Envoy 5.3 v8 low oil gauge reading and warning light
GraphiteDenali
Feb 7, 2024
2
218
Feb 8, 2024
by
chem_man
R
[SOLVED] 2002 trailblazer PCM replacement options
rolo95
May 12, 2020
13
8K
Feb 7, 2024
by
Dablueprint228
G
So smoothe after new engine mounts.
gassinenvoy
Feb 7, 2024
0
378
Feb 7, 2024
by
gassinenvoy
P0171 07 tblazer lt
Hybr0s
Jan 16, 2020
8
1K
Feb 4, 2024
by
Ravalli Surfer
Wipers wont turn off
Rcopu1
Jan 28, 2024
5
227
Jan 28, 2024
by
Rcopu1
T
2005 Trailblazer Stereo Reset
topsportsman
Nov 3, 2009
6
13K
Jan 27, 2024
by
Ravalli Surfer
T
Help please
TerryJr.
Jan 14, 2024
18
892
Jan 27, 2024
by
Ravalli Surfer
A
Overheating
AJ_0312
Jan 8, 2024
4
185
Jan 26, 2024
by
darrickq
Power Adjustable Pedals not working please help half way done with fix
Axel_Bootyman
Sep 20, 2022
22
3K
Jan 25, 2024
by
chem_man
O
ABS braking performance
Ock
Jan 19, 2024
8
511
Jan 21, 2024
by
metalmike187
V
CEL Code P0171, O2 Sensor not fluctuating
VehicularVortex
Jan 17, 2024
2
154
Jan 21, 2024
by
VehicularVortex
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2002 - 2009 TrailBlazer/Envoy Tech
02-09 Vortec 4.2L I-6 Engine and Drivetrain
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