Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6 New

2.6K
39.2K
Threads
2.6K
Posts
39.2K
M
4.2L running hot under load

Drivetrain New

1.1K
13.4K
Threads
1.1K
Posts
13.4K
F
About 8.6 rear differential cover with drain bolt.

Vortec 5.3L V8 New

396
5.2K
Threads
396
Posts
5.2K
Mooseman
NEED HELP Crankshaft sensor difference?

LS2 6.0L V8

40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
A
NEED HELP 4x4 Already in 4Low at Startup?
Replies
28
Views
362
TJBaker57
TJBaker57
R
Fuel Feeder Line and Cylinder Misfires
Replies
9
Views
227
m.mcmillen
m.mcmillen
masaidwakeup
SOLVED! Rattling/knocking sound (video)
Replies
7
Views
216
masaidwakeup
masaidwakeup
Blackstar
P0302: Cylinder 2 misfire deteced.
Replies
25
Views
4K
Mooseman
Mooseman
WhiteWolf
NEED HELP Fuel/Gas Cap
Replies
3
Views
274
WhiteWolf
WhiteWolf
C
Autozone Duralast Gold Starter Motor with Lifetime Warranty or AC Delco New with 30 day warranty.
Replies
8
Views
328
c good
C
l008com
Is this amount of differential play normal?
Replies
3
Views
285
jerflash
J
W
Front propeller shaft removal help
Replies
2
Views
155
Brian K
B
C
Never knew we can Flat Tow our 4x4 Envoys, Trailblazers, etc.
Replies
6
Views
407
Sqrly
Sqrly
D
Insulation on underside of hood
Replies
6
Views
304
christo829
christo829
6716
Replace front diff?
Replies
3
Views
284
JayArr
JayArr
C
BG Products E.P.R. Seems to be helping oil consumption
Replies
3
Views
417
Mike534x
Mike534x
Dmflash
P0495 code
Replies
9
Views
676
Mooseman
Mooseman
S
Got stranded
Replies
13
Views
746
Mike534x
Mike534x
ZD3SF
4.2L Dieseling sound
Replies
20
Views
3K
Mooseman
Mooseman
flyboy2610
What happens if you overfill your engine oil?
Replies
4
Views
348
flyboy2610
flyboy2610
W
Defective Battery or did my TB fry it?
Replies
4
Views
377
mrrsm
mrrsm
W
Thermostat Preventative/Proactive Replacement
Replies
13
Views
887
wormwood1978
W
T
NEED HELP Please, help accessing front 3 bolts on oil pan in order to remove it.
Replies
2
Views
326
Mooseman
Mooseman
M
2005 Trailblazer Starting Issues.
Replies
7
Views
882
Realism
Realism
Btorres1977GContractor
Please Help Identify Broken Sensor
Replies
1
Views
381
mrrsm
mrrsm
C
Worth picking up an extra engine?
Replies
6
Views
610
c good
C
MPB
New York State inspection fail
Replies
11
Views
723
AmpOverload
AmpOverload
Ilikemy3s
Bound to happen sooner or later
Replies
5
Views
504
mrrsm
mrrsm
Realism
Whirring buzz from under the hood, take a guess
Replies
12
Views
876
Realism
Realism
K
2002 Trailblazer airbox question
Replies
3
Views
405
Blckshdw
Blckshdw
movietvet
2002 TB 4.2 died at stop & immediate restart
Replies
51
Views
3K
movietvet
movietvet
C
BG EPR oil treatment?
Replies
3
Views
532
Mooseman
Mooseman
C
Do the 5.3 Envoys and Trailblazers have the "Tow/Haul" feature?
Replies
6
Views
869
Mooseman
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
Replies
6
Views
474
TollKeeper
TollKeeper
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