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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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Sticky
Poor A/C at idle
Jman423
Jun 18, 2005
20
21
22
421
234K
Sep 9, 2020
by
Dieseldog
Odd issue with coolant temp.
Brendan Schneider
4 d ago
2
22
210
8 h ago
by
Brendan Schneider
New Cooling Fan VERY Loud for 3-5 Minutes.
Ravalli Surfer
5 d ago
16
330
11 h ago
by
Ravalli Surfer
E
Envoy Still Running With Key Out -- After Ignition Switch Replacement
EddieTheEnvoy
29 d ago
3
4
5
87
1K
4 d ago
by
EddieTheEnvoy
W
06 Denali Radio problem
Whitelx1
6 d ago
0
65
6 d ago
by
Whitelx1
P
Airbag light
Puzzum
11 d ago
6
198
9 d ago
by
Puzzum
M
[SOLVED]
Reduced Engine Power 2005 Trailblazer LS 4.2
mundo64485
Nov 28, 2015
12
13K
12 d ago
by
alton.faletoi
A
Issue overhauling the transmission 2004 trailblazer 4x4
Anadales
5 mo ago
12
892
16 d ago
by
keith20mm
G
Camshaft position sensor signal wire too weak
Ghost4851
18 d ago
11
347
17 d ago
by
TJBaker
N
engine flutter
nctrailblazer
Jul 29, 2007
2
29
5K
18 d ago
by
Ravalli Surfer
M
4L60E problems
Molinky
6 mo ago
3
343
18 d ago
by
Moneyshot
K
2007 Chevrolet Trail Blazer LT -- Oil pressure
ksukat
5 mo ago
5
443
18 d ago
by
TJBaker
H
P0526 code (fan clutch thread)
heov
Jan 29, 2010
15
45K
20 d ago
by
TJBaker
07 Trailblazer 4.2
T.L.M
1 mo ago
7
276
22 d ago
by
Ravalli Surfer
Steering wheel not locking?
ClayRauch
Apr 11, 2021
7
1K
22 d ago
by
Vega_TB
2004 Envoy SLT 4.2, 273,234 Miles, Sluggish Acceleration
2004 GMC Envoy SLT
1 mo ago
18
350
24 d ago
by
chem_man
S
floor vent actuator
Scorch conch
1 mo ago
17
541
1 mo ago
by
chem_man
L
Can't get 2nd row seat to release
LFrye
Mar 9, 2012
16
11K
1 mo ago
by
RossR
Car Stalls at the same place everyday only in mornings
Axel_Bootyman
1 mo ago
3
207
1 mo ago
by
miketexas
P0335 code?
newlifenewway9414
1 mo ago
2
159
1 mo ago
by
newlifenewway9414
Running but not moving, mostly
Nebuchadnezzar
2 mo ago
3
166
2 mo ago
by
Ravalli Surfer
S
Needing a cross reference for a part number
Scorch conch
2 mo ago
5
232
2 mo ago
by
KrunchyBlaze
0
p0411 Please help! searched, read, cannot get rid of code (long, tldr at bottom)
07BlackTB
5 mo ago
2
24
930
2 mo ago
by
Mikey71
N
Stabilitrak light on but functions normally with light on???
Nicks09SLT
2 mo ago
0
147
2 mo ago
by
Nicks09SLT
Lost key. Cranks but no fire
Kevschloss51
3 mo ago
6
395
2 mo ago
by
TwistedDad
S
2007 TB 4.2L 4x4 Running Hotter than normal 216F- 226F Solved and Observed Datat to Determine. SOLVED
slikriktn1
2 mo ago
1
206
2 mo ago
by
slikriktn1
T
Oil Pressure Low, Stop Engine warning on DIC.
turbonegro89
Oct 16, 2011
2
3
47
36K
2 mo ago
by
chem_man
M
Door jam switch
mommymobile8
May 10, 2012
3
13K
2 mo ago
by
chem_man
04 Trailblazer LS(4.2 I6) p0304
Elkodelko
2 mo ago
3
228
2 mo ago
by
chem_man
Random no start
Corey15
2 mo ago
13
224
2 mo ago
by
anotheridiot
N
Ticking Noise intermittent 2009 Envoy 4.2 Strange!! Help please
Nicks09SLT
2 mo ago
2
20
542
2 mo ago
by
TJBaker
B
fuel pump question
Bliddaneezy
3 mo ago
2
29
947
2 mo ago
by
Ravalli Surfer
S
Motor Mount Replacement
skoehlke
Nov 12, 2009
3
4
5
85
127K
2 mo ago
by
Dsport5
E
'06 Envoy 4.2L Fuel Pump O-ring question
EddieTheEnvoy
2 mo ago
3
192
2 mo ago
by
Ravalli Surfer
J
P0171 DTC, need some guidance
JoeZeGerman
3 mo ago
8
342
2 mo ago
by
Ravalli Surfer
D
Yet another “My A/C doesn’t work” thread.
DJDoubleLunch
2 mo ago
4
300
2 mo ago
by
Ravalli Surfer
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2002 - 2009 TrailBlazer/Envoy Tech
02-09 Vortec 4.2L I-6 Engine and Drivetrain
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