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
JayArr
Crimping new trans cooler lines

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
C
Never knew we can Flat Tow our 4x4 Envoys, Trailblazers, etc.
Replies
5
Views
126
59840Surfer
59840Surfer
C
BG Products E.P.R. Seems to be helping oil consumption
Replies
3
Views
245
Mike534x
Mike534x
Dmflash
P0495 code
Replies
9
Views
411
Mooseman
Mooseman
l008com
Is this amount of differential play normal?
Replies
2
Views
90
l008com
l008com
S
Got stranded
Replies
13
Views
410
Mike534x
Mike534x
zaid3ssaf
4.2L Dieseling sound
Replies
20
Views
2K
Mooseman
Mooseman
flyboy2610
What happens if you overfill your engine oil?
Replies
4
Views
180
flyboy2610
flyboy2610
W
Defective Battery or did my TB fry it?
Replies
4
Views
209
mrrsm
mrrsm
W
Thermostat Preventative/Proactive Replacement
Replies
13
Views
677
wormwood1978
W
T
NEED HELP Please, help accessing front 3 bolts on oil pan in order to remove it.
Replies
2
Views
200
Mooseman
Mooseman
M
2005 Trailblazer Starting Issues.
Replies
7
Views
581
Realism
Realism
Btorres1977GContractor
Please Help Identify Broken Sensor
Replies
1
Views
278
mrrsm
mrrsm
C
Worth picking up an extra engine?
Replies
6
Views
425
c good
C
MPB
New York State inspection fail
Replies
11
Views
501
AmpOverload
AmpOverload
Ilikemy3s
Bound to happen sooner or later
Replies
5
Views
356
mrrsm
mrrsm
Realism
Whirring buzz from under the hood, take a guess
Replies
12
Views
660
Realism
Realism
K
2002 Trailblazer airbox question
Replies
3
Views
239
Blckshdw
Blckshdw
movietvet
2002 TB 4.2 died at stop & immediate restart
Replies
51
Views
2K
movietvet
movietvet
C
BG EPR oil treatment?
Replies
3
Views
385
Mooseman
Mooseman
C
Do the 5.3 Envoys and Trailblazers have the "Tow/Haul" feature?
Replies
6
Views
542
Mooseman
Mooseman
C
2002 Envoy, 4x4. Starter motor replacement tips?
Replies
6
Views
362
TollKeeper
TollKeeper
S
Slight hesitation/vibration at idle
Replies
10
Views
523
mrrsm
mrrsm
Dmflash
Wheel bearing hub assembly
Replies
68
Views
4K
far eastan
F
l008com
NAPA High Mileage Oil?
Replies
4
Views
713
Know1else
K
ghost_leader07
NEED HELP Possible bad fuel pump (confirmation needed)
Replies
28
Views
1K
mrrsm
mrrsm
B
No crank no start isn't it lovely
Replies
83
Views
2K
bennieRohde
B
M
E-Fan issue
Replies
5
Views
449
Mooseman
Mooseman
ghost_leader07
NEED HELP P0171 on my 04 Trailblazer LT won't go away
Replies
117
Views
8K
mrrsm
mrrsm
gmcman
Where can I get the TCC PWM eliminator kit?
Replies
3
Views
506
Sparky
Sparky
RiverGuy
Confirmed: Clearing codes re-enables Cruise Control
Replies
4
Views
866
AmpOverload
AmpOverload
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