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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
66.6K 35.7M
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Air Induction

Performance Air Intake/Air Induction Modifications
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Exhaust Mods

Performance Exhaust Modifications
12K 3.7M
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Engine Tunes/Mods

Performance Engine Tuning/Engine Modifications
21K 8.3M
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Transmission Mods

Performance Transmission Modifications
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4x4 Drivetrain

4x4 Repairs & Problems
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Sticky = = = New threads may not be posted in this catagory, please select a sub-forum = = =
0
19K
 by Jman423
2002 trailblazer electrical issues.
1
32
 by EnvoyBoy2004
P1512 please help
2
72
 by Nas0585
Heat
0
23
 by Brandon eats chelle
Fan Clutch swapout to Electric Fan
2
34
 by princej99
5.3L V8 Starter Change in Less Than An Hour
1
31
 by STSCowboy
Vortec 4200 Exhaust Manifold Bolts - Threadlocker?
2
182
 by KHE
Curious Mechanic
2
191
 by NHSCTE_Jon
Checked a fuse and now engine won’t start
2
188
 by NHSCTE_Jon
Need input
12
646
 by tinmanwpk
What in the f*** is up with this 4le60
1
78
 by Ravalli Surfer
Tranny swap.. Old question for new TB owner
3
672
 by miketexas
Do I need to change the transfer case fluid if I have no CV axles?
8
733
 by zaid3ssaf
T
0
93
 by Handy333
how much is a new stater for trailblazer 2003
4
651
 by 06denaliman
'03 LTZ fuel filter location??
2
29
2K
 by Griz52
Is my transmission dead?
2
203
 by miketexas
‘08 TB Ls - when I make full turn - vehicle won’t move
12
821
 by princej99
Parasitic Battery Draw and engine noise at idle:
16
1K
 by Ravalli Surfer
Went through a puddle, service 4wd
1
359
 by EnvoyBoy2004
So i got suckered....
1
757
 by Shadetreemechanic
Transmission shift solenoids
1
195
 by Ravalli Surfer
RPM flare with Defrost or A/C on after cleaning Throttle Body
1
161
 by Ravalli Surfer
Rough idle
4
400
 by kkoorndyk
Engine swap - pull with tranny or leave?
2
286
 by DCHaught
Front End Noise While Idling
10
6K
 by Yoshi808
2008 trailblazer 4.2 vortec blue smoke on start up, goes away immediately
2
359
 by Knuck chuckles
2008 Trailblazer LT 4.2 Vortec blue smoke on start up...
0
88
 by Knuck chuckles
05 transmission shift issue
0
117
 by Doug T.
2005 Trailblazer Stalling Issue
2
126
 by rkehoe99
Rod knock? What else could it be...
0
104
 by silver007
04 blazer harsh iddle issue
6
950
 by 2004TB22405
battery?/alternator?/or something else
1
379
 by pdcomm
Rough idle
2
604
 by edwinhil
battery light on faint
0
201
 by craloe
Problem after cleaning throttle body.
17
56K
 by samlab1
02-09 Vortec 4.2L I-6 Engine and Drivetrain Q&A forum for engine and drivetrain repairs/modifications/tuning.
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