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2002 - 2009 TrailBlazer/Envoy Tech
The 02-09 "How-To" and DIY Section
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Sticky
HVAC Mode Actuator door replacement
03Huggy
Apr 12, 2008
35
36
37
729
819K
2 mo ago
by
Ravalli Surfer
Sticky
MAY03LT's how to videos thread
MAY03LT
Nov 11, 2011
2
29
25K
7 mo ago
by
David11946
C
Sticky
How to replace your stepper motor
CHAVEZ
Dec 5, 2008
20
21
22
437
520K
10 mo ago
by
Ravalli Surfer
O
Sticky
How to hook up trailer lights to Envoy
OldMike
Sep 13, 2011
2
22
24K
10 mo ago
by
Ravalli Surfer
M
Sticky
How to replace your ignition switch (pics)
mellis
Aug 11, 2009
11
12
13
259
395K
11 mo ago
by
chem_man
Sticky
How to: Replacing spark plugs in an I6
MAY03LT
Nov 9, 2009
2
3
4
71
61K
Mar 12, 2022
by
Lizard
Sticky
How to clean your throttle body
KHill
Feb 4, 2009
32
33
34
675
590K
Jul 29, 2021
by
wingerjw
B
Sticky
cabin filter
bass
Feb 19, 2011
14
15
16
303
282K
Jul 4, 2021
by
Lckent48
[SOLVED]
Sticky
Sun roof repair
hatchet669
Aug 20, 2010
2
3
4
60
143K
May 20, 2021
by
Ock
Sticky
How to change your fuel pump- WITH PICS.
rbarrios
Nov 9, 2008
7
8
9
172
244K
Jan 19, 2021
by
pdcomm
Sticky
Thermostat repair- how to- pics included
rbarrios
Oct 14, 2007
16
17
18
356
346K
Oct 22, 2020
by
Scratchin My Head
Sticky
New "How to fix the seat heater" thread.
GOFASTER
Jan 29, 2009
2
3
4
73
103K
Jun 9, 2020
by
Vega_TB
S
Sticky
2005 Envoy Fuel Pump Replacement - Part I
sinotar
Aug 30, 2010
2
3
54
111K
May 1, 2020
by
romdos
S
Sticky
How to replace the windshield wiper motor
stanggt00
Jul 12, 2007
2
3
4
66
110K
Jan 2, 2019
by
umairaslam1211
B
Sticky
How-To Fuel Filter Replacement on 02-04 TV WITH PICS
bobbyblaze
Apr 15, 2009
9
10
11
215
190K
Sep 27, 2018
by
Ranger2003
Sticky
How To: Replacing an I6 alternator
MAY03LT
Aug 16, 2009
3
4
5
85
111K
Sep 8, 2018
by
Bugeyed1
Sticky
How to: Camshaft Position Actuator Solenoid Cleaning
Urbanarkansas
Sep 5, 2009
18
19
20
388
490K
Aug 16, 2018
by
gmc4flash
Sticky
How to: Replace blower resistor pack replacement WITH PICS!
K2JJB
Oct 23, 2007
36
37
38
755
749K
Aug 1, 2018
by
tblsfan
Sticky
How to seafoam your 4.2l Gmt-360s
Trailblaze_2002
Dec 18, 2009
6
7
8
149
136K
Jul 12, 2018
by
krackerjack9
Sticky
How to replace water pump (pics)
blbkabenvoy
Mar 19, 2010
17
18
19
365
456K
May 20, 2018
by
PeayM
T
Sticky
How to tell which rear gear we have...
theboneskes
Oct 20, 2011
10
16K
Mar 7, 2018
by
toddtnp
Sticky
Gas overflow how to fix TSB: 04-06-04-003A
itchyfishnv
Oct 29, 2008
2
27
50K
Mar 5, 2018
by
Rob616
Sticky
How to- Changing belts on a 5.3 with pictures
Spong
Feb 7, 2009
2
3
44
90K
Jan 14, 2018
by
T-B 9-7X
M
Sticky
Tire Pressure sensor re-learn procedure
MyGoatBites
May 19, 2007
2
31
42K
Apr 24, 2017
by
Jkb242
M
Sticky
Guide to changing Trailblazer / Envoy 4.2L I6 Spark Plugs w/ Images & Google Doc URL
Mageler
Mar 5, 2011
3
4
5
88
2M
Mar 1, 2017
by
tbuaron
Sticky
How to: Resetting the "change oil" light
MAY03LT
Nov 8, 2009
2
3
4
69
110K
Feb 28, 2017
by
robsamdx64
0
Sticky
How-to C6 efan installation
07TB
Aug 13, 2009
2
3
4
69
71K
Dec 29, 2016
by
BadDog98
D
[SOLVED]
Sticky
How to replace the radiator on a 2002 Chevrolet Trailbalzer
desertduster
Aug 28, 2010
18
48K
Oct 8, 2016
by
aschaller2
Sticky
How to change upper and lower radiator hoses - with pics
rbarrios
Nov 24, 2008
2
37
93K
Sep 28, 2015
by
MaddMannDA
Sticky
How to: Checking for spark in an I6 (video)
MAY03LT
Oct 23, 2011
16
17K
Dec 3, 2014
by
Powerman
Sticky
Cleaning Throttle Body, MAF, Air intake 5.3
stopher2
Sep 1, 2011
3
23K
Nov 3, 2014
by
robpreuss
Sticky
How to Change 3rd Brake Light--with pics
wardak33
Jul 4, 2009
2
3
45
77K
Apr 22, 2014
by
noraa
Sticky
Tie Rod Replacement How to
keitho64
Apr 18, 2009
5
6
7
130
195K
Apr 5, 2014
by
2004TB_LS_6cyl
Sticky
Step-By-Step True Flow CAI Install - Part 1
glfredrick
May 2, 2009
2
3
4
79
71K
Feb 13, 2014
by
trailblazer06ls
C
[SOLVED]
Sticky
Helpful steering wheel light how to
cablemn
Jan 16, 2012
3
20K
Apr 11, 2012
by
Spyw
H
Sticky
how to tow a 4x4 trailblazer?
hecsz28
Oct 30, 2011
12
42K
Nov 2, 2011
by
TollKeeper
W
2002 Bravada A/C question......
Wesscott
16 h ago
4
54
13 h ago
by
TJBaker
Hi, I have a 2007 Chevy Trailblazer with the 4.2 motor, and i need help findinv the cooling fan relay. My fusebox says its #45, but thats not the cas
Shawn2316
1 d ago
2
67
1 d ago
by
Ravalli Surfer
Need front bumper plastic part
sqsergheyev63
2 d ago
2
94
2 d ago
by
jonesie_atl
B
[SOLVED]
p0300
beaconbab
Mar 24, 2012
13
92K
3 d ago
by
landdermis
All lights on mod
timsimon083
3 d ago
0
71
3 d ago
by
timsimon083
help Secondary Air Injection Check Valve repair
Axel_Bootyman
7 d ago
7
207
3 d ago
by
Firingpin123
Factory radio replacement 2002 Envoy.
kongofnie
24 d ago
2
164
3 d ago
by
AhoyEnvoy
Rear window seal
metalmike187
12 d ago
2
31
560
6 d ago
by
metalmike187
T
Do i have a bad battery
Tagara
13 d ago
16
409
7 d ago
by
miketexas
02 trailblazer Led interior
Marco66562
3 mo ago
2
430
7 d ago
by
Marco66562
08 envoy
AdmNutr
11 d ago
3
110
10 d ago
by
AdmNutr
K
upgrade 08 TB LT with 07 TB LT
Kavman8
13 d ago
0
100
13 d ago
by
Kavman8
Bose system switched/retained power inquiry
Horace P McTitties
3 mo ago
10
400
14 d ago
by
Horace P McTitties
M
2005 4.2 Engine rebuild
Moneyshot
15 d ago
0
118
15 d ago
by
Moneyshot
B
[SOLVED]
How to replace heater core WITHOUT removing dash & vent asy.
BigLee
Oct 27, 2013
2
22
51K
15 d ago
by
flyboy2610
3rd brake light trim replacement.
Bobbo419
24 d ago
10
231
18 d ago
by
Ravalli Surfer
G
Oil pressure gauge installation
Groundunit
1 mo ago
9
334
20 d ago
by
DDS-029
2
Bump Stops for the rear suspension
22056
Oct 22, 2020
6
5K
20 d ago
by
swh50
W
Replace factory amplifier
WVUDannyG
28 d ago
1
150
27 d ago
by
WVUDannyG
M
No power to rear washer pump
Maddawg
29 d ago
2
152
29 d ago
by
Ravalli Surfer
L
[SOLVED]
(not solved) Power Steering Check Valve.
LSfan70s
Mar 31, 2016
12
10K
1 mo ago
by
deltex
B
yaw rate sensor
brimfield
2 mo ago
9
397
1 mo ago
by
Schurkey
Limiting Straps
metalmike187
1 mo ago
0
153
1 mo ago
by
metalmike187
2003 GMC Envoy SLE 2WD 6cycl - Priming fuel before starting car - Car wont crank right away
Chevy-Undah-Mah-Belly
Mar 7, 2022
2
22
1K
1 mo ago
by
Schurkey
G
Upper Control Arm stiff??
GOON ENT
2 mo ago
2
194
1 mo ago
by
Schurkey
Need help ASAP
TwistedDad
2 mo ago
16
674
1 mo ago
by
Ravalli Surfer
G
Where is Evap canister on 03 envoy 6 cyl
GREGNM
2 mo ago
3
156
2 mo ago
by
TJBaker
UPDATED: This is your PCV --- Treat it nicely and it'll return the love!
Ravalli Surfer
Aug 14, 2021
17
4K
2 mo ago
by
Ravalli Surfer
J
2nd Trailblazer
Jesse74
2 mo ago
3
197
2 mo ago
by
chem_man
S
2002 gmc envoy 4.2l O2 sensor problem.
saucy47
2 mo ago
1
149
2 mo ago
by
TJBaker
Where Is The Temp Sensor Wire?
Ravalli Surfer
Dec 7, 2021
2
25
2K
2 mo ago
by
Omar Guzmán
Rough Country Lift Kit
metalmike187
2 mo ago
17
542
2 mo ago
by
Ravalli Surfer
A
Wheel bearing, when to change?
apersonnameddan
2 mo ago
Poll
1
184
2 mo ago
by
Ravalli Surfer
Please help!
amberdurrence1
2 mo ago
4
392
2 mo ago
by
metalmike187
Is it possible to do abody lift on my 2004 gmc envoy?
Jamesshaffer
2 mo ago
1
182
2 mo ago
by
Ravalli Surfer
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The 02-09 "How-To" and DIY Section
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