Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6 New

2.5K
38.8K
Threads
2.5K
Posts
38.8K
movietvet
2002 TB running great

Drivetrain New

1.1K
13.3K
Threads
1.1K
Posts
13.3K
filthyfingers
NEED HELP Tranny slipping and surging. 4WD switch flashing

Vortec 5.3L V8

392
5.2K
Threads
392
Posts
5.2K
Mike534x
Catalytic converter replacement options EPA vs carb

LS2 6.0L V8

40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
T
NEED HELP Please, help accessing front 3 bolts on oil pan in order to remove it.
Replies
2
Views
165
Mooseman
Mooseman
ghost_leader07
NEED HELP Possible bad fuel pump (confirmation needed)
Replies
28
Views
960
mrrsm
mrrsm
ghost_leader07
NEED HELP P0171 on my 04 Trailblazer LT won't go away
Replies
117
Views
7K
mrrsm
mrrsm
l008com
NEED HELP Stick Dipstick!
Replies
38
Views
6K
Mooseman
Mooseman
X
NEED HELP AC / Heater Blower working intermittently with dash lights
Replies
9
Views
820
Xodus989
X
H
NEED HELP 4WD not working
Replies
4
Views
465
Mooseman
Mooseman
ghost_leader07
NEED HELP Overheating issue with AC ON!
Replies
49
Views
3K
ghost_leader07
ghost_leader07
Ric_Whit
NEED HELP P1221 Only with A/C on
Replies
8
Views
1K
mrrsm
mrrsm
Drec
NEED HELP Shifter locked in neutral
Replies
14
Views
1K
Drec
Drec
psa55
NEED HELP P0651
Replies
17
Views
4K
mrrsm
mrrsm
WhiteWolf
NEED HELP Gas Caps
Replies
3
Views
722
Mooseman
Mooseman
MrShelley
NEED HELP Recommended Exhaust Manifold Replacement?
Replies
15
Views
2K
Schurkey
Schurkey
R
NEED HELP 06 Trailblazer EXT 4.2 Engine swap
Replies
30
Views
4K
NJTB
N
S
NEED HELP 4x4 Working strange
Replies
25
Views
2K
chris68369
C
R
NEED HELP Boiling sound from radiator overflow
Replies
7
Views
1K
Rick
R
B
NEED HELP Question 🤔
Replies
2
Views
456
Redbeard
R
M
NEED HELP 2003 Trailblazer transmission
Replies
6
Views
772
JimInRadfordVA
JimInRadfordVA
C
NEED HELP Starter only clicks
Replies
18
Views
2K
cretecrawler
C
gmcman
NEED HELP Replacing LH bearing in front diff, have questions.
Replies
19
Views
2K
gmcman
gmcman
J
NEED HELP 2008 Chevy trailblazer Lt 4x4
Replies
10
Views
1K
JerryIrons
J
V
NEED HELP Doesn’t stay running when cold
Replies
20
Views
2K
Voy07
V
K
NEED HELP AC compressor question
Replies
5
Views
868
Mektek
M
yazan
NEED HELP Intake hose loose with heavy white smoke out from the engine
Replies
6
Views
2K
mrrsm
mrrsm
Aec678
NEED HELP Fan Clutch from hell lol
Replies
58
Views
5K
TJBaker57
TJBaker57
S
NEED HELP saab97x5.3i Where are the rust spots on the transmission tubes?
Replies
11
Views
1K
gmcman
gmcman
ayalamarcus5223
NEED HELP 2006 chevy trailblazer relearn
Replies
10
Views
2K
Cthornburg1972
C
R
NEED HELP Annoying chirp under hood
Replies
19
Views
3K
richphotos
R
M
NEED HELP 2002 TB LS 4WD front wheels not engaging
Replies
7
Views
1K
moneymike
M
G
NEED HELP Runs drives fine cold warms up and stalls no restart
Replies
17
Views
3K
Maverick6587
Maverick6587
K
NEED HELP Can't quite figure this one out.
Replies
3
Views
781
Maverick6587
Maverick6587
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