Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6 New

2.6K
39.4K
Threads
2.6K
Posts
39.4K
TJBaker57
Steering wheel mod

Drivetrain New

1.1K
13.5K
Threads
1.1K
Posts
13.5K
Matt
Do any of the Trailblazer SS Models have 4x4 with Hi/Lo Transfer case?
  • Matt

Vortec 5.3L V8 New

401
5.3K
Threads
401
Posts
5.3K
christo829
over heats going around the block.

LS2 6.0L V8

40
839
Threads
40
Posts
839
H
Cylinder 6 Misfire Mystery
Sqrly
Does it have to learn to idle?
Replies
151
Views
2K
Sqrly
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gmcman
What does this noise sound like?
Replies
10
Views
304
santon
S
C
LL8 Rebuild. Any upgrades recommended?
Replies
3
Views
68
TJBaker57
TJBaker57
K
NEED HELP 5.3 vortec long crank
Replies
32
Views
464
mrrsm
mrrsm
TJBaker57
Scantool reports Auto while switch says 4Hi
Replies
11
Views
206
TJBaker57
TJBaker57
Sqrly
Does your Envoy "Decelerate"? (auto trans)
Replies
7
Views
225
Sqrly
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S
Frustrating tank drop
Replies
9
Views
271
Stuntmanmike1977
S
R
NEED HELP 2008 GMC Envoy issue with stalling
Replies
9
Views
192
mrrsm
mrrsm
movietvet
CEL P0300-CEL flashed 3 times and engine noise
Replies
22
Views
687
movietvet
movietvet
Sqrly
How does the A4WD work?
Replies
13
Views
256
TequilaWarrior
T
A
NEED HELP 4x4 Already in 4Low at Startup?
Replies
35
Views
842
TJBaker57
TJBaker57
C
Glad I changed the fuel filter!
Replies
0
Views
218
c good
C
C
Dorman Disconnect or rebuild original GM?
Replies
1
Views
167
flyboy2610
flyboy2610
C
Expect better fuel mileage with new fuel filter?
Replies
3
Views
201
c good
C
Sqrly
460LE What is the factory stall speed?
Replies
2
Views
220
Mooseman
Mooseman
Blackstar
P0302: Cylinder 2 misfire deteced.
Replies
26
Views
5K
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C
Differential oil 75w/90 recommendations please
Replies
9
Views
372
c good
C
C
15 years, 50 Thousand miles on my rear diff, transfer case, and front diff fluids. Time for a service?
Replies
5
Views
267
c good
C
C
Isuzu Ascender. Is it a true 4x4 with Hi/Low range transfer case?
Replies
2
Views
266
c good
C
G
NEED HELP 2006 trailblazer p1810and p1815
Replies
5
Views
371
Georgev
G
R
Fuel Feeder Line and Cylinder Misfires
Replies
9
Views
415
m.mcmillen
m.mcmillen
masaidwakeup
SOLVED! Rattling/knocking sound (video)
Replies
7
Views
397
masaidwakeup
masaidwakeup
WhiteWolf
NEED HELP Fuel/Gas Cap
Replies
3
Views
422
WhiteWolf
WhiteWolf
C
Autozone Duralast Gold Starter Motor with Lifetime Warranty or AC Delco New with 30 day warranty.
Replies
8
Views
872
c good
C
l008com
Is this amount of differential play normal?
Replies
3
Views
369
jerflash
J
W
Front propeller shaft removal help
Replies
2
Views
315
Brian K
B
C
Never knew we can Flat Tow our 4x4 Envoys, Trailblazers, etc.
Replies
6
Views
561
Sqrly
Sqrly
D
Insulation on underside of hood
Replies
6
Views
446
christo829
christo829
6716
Replace front diff?
Replies
3
Views
403
JayArr
JayArr
C
BG Products E.P.R. Seems to be helping oil consumption
Replies
3
Views
599
Mike534x
Mike534x
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