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
M
2004 Buick Ranier CXL 4.2 Transfer Case?

Vortec 5.3L V8 New

394
5.2K
Threads
394
Posts
5.2K
0
Runs rough couple miles after starting

LS2 6.0L V8

40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
DenaliHD66
Built 4l60e Replacement?
Replies
37
Views
6K
Sparky
Sparky
S
I may have ruined the oil pump?
Replies
36
Views
4K
Sprung Monkey
S
Elizabetty
SOLVED! Ringing whistle? HVAC disruption during servicing? Or?
Replies
36
Views
2K
Mooseman
Mooseman
5
Ready to just drive it till it dies...
Replies
36
Views
5K
HARDTRAILZ
HARDTRAILZ
P
Need Help with 2006 Trailblazer!!!
Replies
35
Views
3K
Phantom
Phantom
R
Oxygen sensor
Replies
35
Views
5K
Fire06
F
C
Have to change my battery...dont wanna f*** my car up. HELP needed quick
Replies
35
Views
3K
The_Roadie
The_Roadie
coolride
Transmission line uncoupled
Replies
35
Views
2K
coolride
coolride
0
04 Chevy Trailblazer
Replies
34
Views
2K
04TBowner
0
S
No start no crank
Replies
34
Views
2K
Mooseman
Mooseman
S
Poor gas mileage and Poor power
Replies
33
Views
5K
gmcman
gmcman
N
2004 TB, hard shift into 4th
Replies
33
Views
3K
59840Surfer
59840Surfer
K
wheel bearing noise
Replies
33
Views
3K
kickass audio
K
G
removal and adjustment ParkNeutralPosition safety switch
Replies
33
Views
8K
Saul
S
J
4.2 Head Gasket?
Replies
33
Views
7K
0u812
0
M
Something bad happened - Sunshell?
Replies
33
Views
13K
triz
triz
R
Synthetic oil
Replies
32
Views
3K
03envoy
03envoy
B
Transmission Line leak at the wheel well head clamp... temporary fix?
Replies
32
Views
2K
budwich
B
PProph
Whine/Squeal consistent with RPM change (Revisited thread see last post)
Replies
32
Views
4K
PProph
PProph
R
Cleaned throttle body - Still misfire (p0300 P0301)
Replies
32
Views
6K
richphotos
R
Realism
Fan clutch and water pump cause- what are your thoughts?
Replies
32
Views
2K
Realism
Realism
G
04 TB EXT 4x4 problem. Same problem, but a couple other questions
Replies
31
Views
2K
freek245
F
pjrocco
Torque converter issue, maybe?
Replies
31
Views
6K
Mooseman
Mooseman
K
2002 envoy front def issue
Replies
30
Views
3K
paul2005tb
paul2005tb
T
Temp Transmission Cooler Line Question
Replies
30
Views
3K
matermark
matermark
D
Head gasket replacement? Oil in coolant...
Replies
30
Views
3K
JayArr
JayArr
MedicatedMike
Please help! After replacing therm, truck starts, then dies and wont start!?
Replies
30
Views
3K
joe mama
J
D
Regular or synthetic oil what do you guys think
Replies
30
Views
7K
HARDTRAILZ
HARDTRAILZ
R
NEED HELP 06 Trailblazer EXT 4.2 Engine swap
Replies
30
Views
5K
NJTB
N
Pittdawg
Upgrading to 4.10's
Replies
29
Views
3K
Sparky
Sparky
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