Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6 New

2.5K
38.9K
Threads
2.5K
Posts
38.9K
Realism
Only 3000 miles on oil, but One year old. Change filter too?

Drivetrain New

1.1K
13.3K
Threads
1.1K
Posts
13.3K
Blckshdw
Normal Transmission Temperature?

Vortec 5.3L V8 New

394
5.2K
Threads
394
Posts
5.2K
M
Runs rough couple miles after starting

LS2 6.0L V8

40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
G
05 front humming
Replies
11
Views
1K
JamesL3
JamesL3
C
05 sierra Stuck in 2nd
Replies
2
Views
311
Mooseman
Mooseman
Rizzoj2000
05 TB 4.2 throwing P0171 and 172.
Replies
6
Views
1K
IllogicTC
IllogicTC
Tbluvr
NEED HELP 05 trailblazer tranny no noise or nothing
Replies
2
Views
649
KEEBZ489
K
C
06 Denali exhaust suggestions/questions, will either of these fit????
Replies
4
Views
913
Pittdawg
Pittdawg
J
06 TB 4.2 stalling while braking..
Replies
85
Views
6K
jeffrobinson
J
R
NEED HELP 06 Trailblazer EXT 4.2 Engine swap
Replies
30
Views
5K
NJTB
N
D
06+ factory 18's = 8.6 rear axle
Replies
2
Views
807
djthumper
djthumper
L
0751 code
Replies
7
Views
1K
lint
L
C
1 Quart in 2600 miles OK?
Replies
2
Views
505
Mooseman
Mooseman
J
15 codes after transfer case fluid change
Replies
6
Views
5K
djthumper
djthumper
Ed's Automotive
1999 4L60 in a 2004
Replies
5
Views
2K
mrrsm
mrrsm
U
2 Misc Engine Q's
Replies
11
Views
1K
gmcman
gmcman
A
2 new codes not known
Replies
7
Views
3K
aboturky839
A
L
2002 Bravada AWD not working.
Replies
12
Views
12K
lovesrugers
L
M
2002 Bravada-No AWD
Replies
12
Views
2K
MOJoe2002
M
D
2002 Bravada/Envoy/Trailblazer muffler DIY replacement
Replies
5
Views
8K
darsch
D
T
2002 Chevy Trailblazer
Replies
5
Views
1K
The_Roadie
The_Roadie
C
2002 cylinder liner failure? Just curious.
Replies
9
Views
786
Mooseman
Mooseman
K
2002 envoy front def issue
Replies
30
Views
3K
paul2005tb
paul2005tb
G
NEED HELP 2002 Envoy will not move till 1500rpm...and other stuff.
Replies
13
Views
2K
shovenose
shovenose
R
2002 Envoy with rough idle - very strange
Replies
8
Views
2K
The_Roadie
The_Roadie
C
2002 Envoy, 4x4. Starter motor replacement tips?
Replies
6
Views
350
TollKeeper
TollKeeper
F
2002 Olds Bravada - Thinking of buying have a few questions
Replies
6
Views
1K
fixnux
F
movietvet
2002 TB 4.2 died at stop & immediate restart
Replies
51
Views
2K
movietvet
movietvet
Shojoro
2002 TB Fan Bolt Replacements
Replies
3
Views
813
BlazingTrails
BlazingTrails
M
NEED HELP 2002 TB LS 4WD front wheels not engaging
Replies
7
Views
2K
moneymike
M
J
2002 TB running problems
Replies
8
Views
956
gmcman
gmcman
F
2002 Trailblazer - Random Service 4x4 light
Replies
20
Views
3K
The_Roadie
The_Roadie
movietvet
2002 Trailblazer 2WD/AWD/4HI and 4LO
Replies
3
Views
584
movietvet
movietvet
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