Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6

Threads
2.3K
Messages
36K
Threads
2.3K
Messages
36K
6716
truck sometimes dies at the stoplight with the a/c on
  • 6716

Drivetrain

Threads
983
Messages
12.2K
Threads
983
Messages
12.2K
JayArr
diagnosing TCC lockup issues.
  • JayArr

Vortec 5.3L V8

Threads
364
Messages
4.8K
Threads
364
Messages
4.8K
MRRSM
40 to 20 oil pressure

LS2 6.0L V8

Threads
36
Messages
802
Threads
36
Messages
802
T
Cylinder 6 Misfire Mystery
S
I may have ruined the oil pump?
Replies
35
Views
503
Mooseman
Mooseman
J
Transmission line change project notes
Replies
6
Views
123
JayArr
JayArr
T
NEED HELP Cylinder Head and timing chain headaches.
2 3
Replies
81
Views
3K
tucker12
T
C
4L60E transmission without Tow/Haul vs. 4L60E with Tow/Haul?
Replies
5
Views
124
c good
C
C
4.2 keeps losing oil pressure
2 3 4
Replies
133
Views
3K
chuey_316
C
F
P1681 TPS error code
Replies
7
Views
149
MRRSM
MRRSM
6716
$1700 A/C quote to replace the evaporator under the dash
Replies
16
Views
452
6716
6716
C
O2 sensor replacement
Replies
6
Views
215
cretecrawler
C
M
NEED HELP 2003 Trailblazer transmission
Replies
6
Views
172
JimInRadfordVA
JimInRadfordVA
C
Strangest drive train noise w/ video
Replies
11
Views
174
Clooney
C
S
How hard can a 5.3 engine install be on gmt360
Replies
12
Views
386
JayArr
JayArr
J
Does the 4.2 platform have an INERTIA CUTOFF SWITCH ?
Replies
7
Views
318
Mooseman
Mooseman
John Koda
TCM LOCATION
Replies
4
Views
153
Chickenhawk
Chickenhawk
l008com
Oil Filter Removal Trick?
Replies
12
Views
404
JayArr
JayArr
K
ac refill for short wheelbase ?
Replies
3
Views
157
Mooseman
Mooseman
T
Temp Transmission Cooler Line Question
Replies
29
Views
1K
matermark
matermark
C
Another Dex Cool Question. Did I mess up?
Replies
12
Views
388
littleblazer
littleblazer
S
I’d like to test compression on the 07 5.3 V8
Replies
10
Views
264
Sprung Monkey
S
E
04 into 07 engine swap
Replies
1
Views
145
Mooseman
Mooseman
psa55
Stabilitrak Error?
Replies
8
Views
368
Mooseman
Mooseman
zaid3ssaf
SOLVED! Locked out
Replies
19
Views
646
Tankcruiser
Tankcruiser
B
Transmission Line leak at the wheel well head clamp... temporary fix?
Replies
32
Views
682
budwich
B
S
Cruising good only about 1.5 miles then she cuts off.
2
Replies
58
Views
1K
Sprung Monkey
S
psa55
Oil/Grease Coming From Somewhere
Replies
8
Views
397
Reprise
Reprise
H
4x4 service light
Replies
2
Views
171
Hawkce541
H
J
Trans Cooler and Power Steering cooler/lines installed
Replies
11
Views
508
budwich
B
C
Transmission issues please help
Replies
19
Views
561
JayArr
JayArr
S
Difficulty removing clutch fan
2
Replies
48
Views
1K
Sprung Monkey
S
C
  • Locked
4l60e help please
Replies
8
Views
469
Blckshdw
Blckshdw
Metanoiahenery
I really need some advice before I blow up this truck😤
Replies
10
Views
591
northcreek
northcreek
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