Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6

Threads
2.1K
Messages
31.5K
Threads
2.1K
Messages
31.5K
gmcman
Help to identify top end noise

Drivetrain

Threads
860
Messages
10.5K
Threads
860
Messages
10.5K
HARDTRAILZ
4WD Selector Switch

Vortec 5.3L V8

Threads
296
Messages
3.7K
Threads
296
Messages
3.7K
MRRSM
"Hoping... For Loping..."
  • MRRSM

LS2 6.0L V8

Threads
35
Messages
768
Threads
35
Messages
768
xavierny25
NEED HELP Tb SS transmission replacement.
G
NEED HELP Cranks but won't start after driving.
Replies
19
Views
223
GBOfan
G
C-ya
How to remove the rear gas tank strap
Replies
7
Views
211
C-ya
C-ya
WeaponX
Do they make headers for trailblazers?
Replies
7
Views
158
MRRSM
MRRSM
kronkus
Transmission Help
Replies
4
Views
90
Mooseman
Mooseman
W
Help with engine noise, video included
Replies
11
Views
163
wormwood1978
W
northcreek
What's wrong with this picture?
Replies
7
Views
211
TollKeeper
TollKeeper
A
Need Help Identifying a "Black Box" on Trailblazer
Replies
2
Views
96
Alan in Vermont
A
Aashton1
AWD Binding in 2005 Saab 9-7x
Replies
5
Views
84
C-ya
C-ya
C-ya
Humming noise while driving
Replies
21
Views
321
C-ya
C-ya
WeaponX
Radiator loose is something missing?
Replies
5
Views
126
Redbeard
R
WeaponX
What is this any why is it leaking?
Replies
2
Views
110
Mooseman
Mooseman
Blackstar
More codes.
Replies
5
Views
123
MRRSM
MRRSM
D
SOLVED! Sparkplugs issue no code
Replies
8
Views
249
Mooseman
Mooseman
Njg425
Quick Transmission Question
Replies
5
Views
95
Mooseman
Mooseman
l008com
Belt & Pulley Part Numbers
Replies
9
Views
149
xavierny25
xavierny25
5
Ready to just drive it till it dies...
Replies
36
Views
568
HARDTRAILZ
HARDTRAILZ
WeaponX
Motor mount change?
Replies
5
Views
204
TollKeeper
TollKeeper
WeaponX
Oil leak from the sensor above the oil filter?
Replies
9
Views
188
MRRSM
MRRSM
WeaponX
Loud banging and strong vibration, HELP!
Replies
4
Views
150
Mooseman
Mooseman
Zrafferty
Dic randonly displayed numbers 04 tb
Replies
3
Views
127
Zrafferty
Zrafferty
G
SOLVED! 04 Trailblazer battery light issue
Replies
5
Views
320
Hlewz3
H
G
Fan clutch not engaging on startup
Replies
5
Views
114
Mooseman
Mooseman
Reprise
Identifying a pair of noises (ok, three)
Replies
5
Views
98
TequilaWarrior
T
J
Transmission service
Replies
11
Views
345
Mounce
Mounce
J
transmission no gears when warmed up
Replies
8
Views
265
tak13
T
6716
what happens if I overfill tree he 4l60e?
Replies
3
Views
160
6716
6716
K
4.2 misfires , no codes...
Replies
21
Views
482
KEEBZ489
K
M
Saab 9-7x stuck in AWD
Replies
23
Views
5K
TequilaWarrior
T
psa55
4WD Disconnect - bad gasket
Replies
8
Views
284
psa55
psa55
P
P0442 where to look before bringing it in to be smoked?
Replies
4
Views
130
Petey
P
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