Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6

Threads
2.4K
Messages
36.5K
Threads
2.4K
Messages
36.5K
C
SOLVED! Fuse 28 PCM-1 blows randomly

Drivetrain

Threads
989
Messages
12.3K
Threads
989
Messages
12.3K
MRRSM
Thrust washer

Vortec 5.3L V8

Threads
369
Messages
4.9K
Threads
369
Messages
4.9K
TollKeeper
Interesting tear down of a 5.3 from a TB

LS2 6.0L V8

Threads
36
Messages
802
Threads
36
Messages
802
T
Cylinder 6 Misfire Mystery
gmcman
Rough idle when first started
Replies
17
Views
235
TJBaker57
TJBaker57
S
Low coolant temperature
Replies
1
Views
112
Chickenhawk
Chickenhawk
S
Engine swap for 07 saab97x 5.3i need advice on used engine please
Replies
25
Views
306
TollKeeper
TollKeeper
Yeagamyster04
5.3 swap again.....
Replies
19
Views
369
Yeagamyster04
Yeagamyster04
MrShelley
NEED HELP Recommended Exhaust Manifold Replacement?
Replies
14
Views
308
MrShelley
MrShelley
S
Cruising good only about 1.5 miles then she cuts off.
2
Replies
59
Views
2K
Martyelzz4
Martyelzz4
ghost_leader07
NEED HELP P0171 on my 04 Trailblazer LT won't go away
2
Replies
73
Views
824
ghost_leader07
ghost_leader07
H
2006 trailblazer rear a/c line replacement
Replies
1
Views
79
Mooseman
Mooseman
C
ATS CRO 505....anyone tried this stuff?
Replies
4
Views
255
Mooseman
Mooseman
C
Starting routine. Is this normal?
Replies
6
Views
254
c good
C
flyboy2610
P0506 code
Replies
0
Views
97
flyboy2610
flyboy2610
A
What exhaust makes the 4.2 sound more like the 6.0
2
Replies
46
Views
5K
CptFrito
C
6716
Rear diff assembly: used or remanufactured?
Replies
8
Views
224
TJBaker57
TJBaker57
T
Not the standard shift cable problem
Replies
14
Views
330
Tinker
T
S
NEED HELP 4x4 Working strange
Replies
25
Views
400
chris68369
C
BanditGTP
4wd Axle Disconnect...Replace or Repair
Replies
27
Views
973
chris68369
C
C
Plastic Dip stick end a problem?
Replies
2
Views
159
c good
C
Ric_Whit
Replacing Crankshaft Front Seal [SOLVED]
2 3
Replies
93
Views
15K
Ric_Whit
Ric_Whit
C
Marvel Mystery Oil worth a try? Roller cam follower ticking.
Replies
5
Views
190
chris68369
C
M
Oil Pressure Gage
2
Replies
59
Views
5K
gmcman
gmcman
C
How long should I let the oil pick up soak in Berryman's?
Replies
22
Views
343
Mooseman
Mooseman
C
I want to add a real oil pressure guage. Suggestions please.
Replies
3
Views
203
Mektek
M
O
No fuel Pressure
Replies
21
Views
305
Mooseman
Mooseman
yazan
are this readings high? ltft stft , and mpg , i have high fuel consumption
Replies
14
Views
422
Mooseman
Mooseman
J
Transmission line change project notes
Replies
9
Views
317
matermark
matermark
T
  • Locked
SOLVED! Cylinder Head and timing chain headaches.
2 3
Replies
96
Views
5K
Mooseman
Mooseman
T
Temp Transmission Cooler Line Question
Replies
30
Views
1K
matermark
matermark
R
NEED HELP Boiling sound from radiator overflow
Replies
7
Views
199
Rick
R
B
NEED HELP Question 🤔
Replies
2
Views
175
Redbeard
R
psa55
Stabilitrak Error?
Replies
9
Views
566
psa55
psa55
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