Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6 New

2.5K
38.9K
Threads
2.5K
Posts
38.9K
Mooseman
PO442

Drivetrain New

1.1K
13.3K
Threads
1.1K
Posts
13.3K
B
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
S
possible vac leak at throttle body/purge hose(?)
Replies
1
Views
552
Mooseman
Mooseman
S
Removing the fuse box
Replies
1
Views
640
Blckshdw
Blckshdw
J
Driveline yoke - off 180° cause vibration?
Replies
1
Views
836
The_Roadie
The_Roadie
J
Small misfire only when cold start
Replies
1
Views
1K
bigjerel
B
gmcman
Hopefully solved a high negative LTFT at idle
Replies
1
Views
5K
Reprise
Reprise
littleblazer
Quick muffler question.
Replies
1
Views
595
Mathoran
Mathoran
C
Engine parts interchangeable with 2006 4.2
Replies
1
Views
993
jrSS
jrSS
SnowBlazer
Service 4WD Light is on
Replies
1
Views
911
The_Roadie
The_Roadie
Charliebrownwds
Po420 code
Replies
1
Views
750
wags69
W
Canary2323
Odometer discrepancy on carfax
Replies
1
Views
837
jonbo2002
J
WeaponX
Will the dual port muffler from an H3 work in my trailblazer?
Replies
1
Views
513
HARDTRAILZ
HARDTRAILZ
psa55
Coolant Gone!
Replies
2
Views
766
psa55
psa55
G
electrical issue? loose connection ?
Replies
2
Views
819
mrrsm
mrrsm
T
CV axle problem
Replies
2
Views
969
tim mc
T
M
fuel system
Replies
2
Views
991
mnmray
M
B
Bad front diff bearings. anyone changed?
Replies
2
Views
973
bgipson89
B
R
Torque on intake gasket 2007 Blazer 3.4 litter
Replies
2
Views
479
Mooseman
Mooseman
C
Codes p0740 p0785 p01860
Replies
2
Views
1K
mrrsm
mrrsm
Tbluvr
NEED HELP 05 trailblazer tranny no noise or nothing
Replies
2
Views
649
KEEBZ489
K
dla442
Walker exhaust systems
Replies
2
Views
960
gmcman
gmcman
Z
Vibrations and growling from Underneath!!!!
Replies
2
Views
1K
zamimj222
Z
D
Trailblazer rear blower staying on
Replies
2
Views
997
Dpack
D
M
03 Trailblazer No crank, No start
Replies
2
Views
486
Mrautoserv72
M
B
NEED HELP Question 🤔
Replies
2
Views
463
Redbeard
R
U
Replace engine Question
Replies
2
Views
780
mrrsm
mrrsm
C
1 Quart in 2600 miles OK?
Replies
2
Views
503
Mooseman
Mooseman
J
How to remove battery tray 2004 TB LS?
Replies
2
Views
261
Mooseman
Mooseman
A
Noise when moving (possible wheel bearing)/Traction control and 4x4 light.
Replies
2
Views
938
acpowell
A
WeaponX
What is this sensor for??
Replies
2
Views
754
seanpooh
seanpooh
gmcman
Alternator compatibility between years
Replies
2
Views
311
gmcman
gmcman
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