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02-09 Vortec 4.2L I-6 Engine and Drivetrain

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OEM Issues

Original Equipment Repairs and/or Problems
66.8K 36.1M
  • 66.8K
  • 36.1M

Air Induction

Performance Air Intake/Air Induction Modifications
11.5K 3.9M
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  • 3.9M

Exhaust Mods

Performance Exhaust Modifications
12K 3.7M
  • 12K
  • 3.7M

Engine Tunes/Mods

Performance Engine Tuning/Engine Modifications
21K 8.4M
  • 21K
  • 8.4M

Transmission Mods

Performance Transmission Modifications
8.1K 4.4M
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4x4 Drivetrain

4x4 Repairs & Problems
15.1K 7.8M
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Sticky = = = New threads may not be posted in this catagory, please select a sub-forum = = =
0
19K
 by Jman423
Oil leak?
2
46
 by plscolla
2002 Envoy XL stalls with accelerating
1
81
 by RickyRay
P0440 after Fuel Pump and Fill Tube Replacement
0
64
 by dmrps8126
Radiator Leak?
3
262
 by tinmanwpk
4x4 driving me crazy
1
140
 by EnvoyBoy2004
'08 I6 Hard to start after fueling
4
196
 by Smkymtnthndr11663
Another Crank but no start.
3
180
 by Ravalli Surfer
Tranny line blew...now multiple issues
2
164
 by princej99
Possible ignition switch issue
1
163
 by EnvoyBoy2004
Ticking noise when accelerating
6
421
 by Ravalli Surfer
Heat
1
106
 by EnvoyBoy2004
2002 trailblazer electrical issues.
1
117
 by EnvoyBoy2004
P1512 please help
2
146
 by Nas0585
Fan Clutch swapout to Electric Fan
2
127
 by princej99
5.3L V8 Starter Change in Less Than An Hour
1
90
 by STSCowboy
Vortec 4200 Exhaust Manifold Bolts - Threadlocker?
2
235
 by KHE
Curious Mechanic
2
257
 by NHSCTE_Jon
Checked a fuse and now engine won’t start
2
240
 by NHSCTE_Jon
Need input
12
723
 by tinmanwpk
What in the f*** is up with this 4le60
1
152
 by Ravalli Surfer
Tranny swap.. Old question for new TB owner
3
720
 by miketexas
Do I need to change the transfer case fluid if I have no CV axles?
8
828
 by zaid3ssaf
T
0
116
 by Handy333
how much is a new stater for trailblazer 2003
4
716
 by 06denaliman
'03 LTZ fuel filter location??
2
29
2K
 by Griz52
Is my transmission dead?
2
257
 by miketexas
‘08 TB Ls - when I make full turn - vehicle won’t move
12
894
 by princej99
Parasitic Battery Draw and engine noise at idle:
16
1K
 by Ravalli Surfer
Went through a puddle, service 4wd
1
393
 by EnvoyBoy2004
So i got suckered....
1
824
 by Shadetreemechanic
Transmission shift solenoids
1
267
 by Ravalli Surfer
RPM flare with Defrost or A/C on after cleaning Throttle Body
1
192
 by Ravalli Surfer
Rough idle
4
492
 by kkoorndyk
Engine swap - pull with tranny or leave?
2
322
 by DCHaught
Front End Noise While Idling
10
7K
 by Yoshi808
02-09 Vortec 4.2L I-6 Engine and Drivetrain Q&A forum for engine and drivetrain repairs/modifications/tuning.
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