Engine & Drivetrain | GMTNation

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6

Threads: 2.3K

Messages: 35K

Threads: 2.3K

Messages: 35K

U

Engine no acceleration

2 minutes ago
Uncleenvoy

Drivetrain

Threads: 951

Messages: 11.9K

Threads: 951

Messages: 11.9K

B

Hub and Axle Disconnect Recommendations?

Today at 8:14 AM
Bumperquip

Vortec 5.3L V8

Threads: 351

Messages: 4.7K

Threads: 351

Messages: 4.7K

M

Persistent p0172 and p0175

Yesterday at 6:39 PM
MBS1994

LS2 6.0L V8

Threads: 35

Messages: 778

Threads: 35

Messages: 778

M

Dead 4.2 swap to 6.0

Oct 31, 2020
Motocross103

Filters

Vibration in drive 900 rpm

Replies: 7

Views: 120

Today at 1:43 PM

gmcman

Transmission codes and hard shifting

Replies: 8

Views: 128

Today at 9:47 AM

TJBaker57

Carbon cleaning the 4.2L LL8. Experiment

Replies: 2

Views: 112

Sunday at 6:16 PM

zaid3ssaf

4.2 L oil pressure measurement-cold to hot

Replies: 7

Views: 111

Sunday at 2:18 PM

TJBaker57

4.2L Dieseling sound

Replies: 9

Views: 203

Nov 16, 2020

MRRSM

N

Differential cover

Replies: 25

Views: 630

Nov 14, 2020

Mooseman

T

NEED HELP Cylinder Head and timing chain headaches.

Replies: 37

Views: 826

Nov 13, 2020

MRRSM

J

Replacement Engine Suppliers? 2002 Envoy SLT

Replies: 18

Views: 441

Nov 11, 2020

TollKeeper

Fuel Lines leak! Help.

Replies: 6

Views: 190

Nov 4, 2020

Turk2

K

NEED HELP AC compressor question

Replies: 5

Views: 159

Oct 30, 2020

Mektek

M

K

crank seal replacement cost ?

Replies: 12

Views: 157

Oct 29, 2020

KEEBZ489

K

Reading the transmission dipstick

Replies: 7

Views: 179

Oct 26, 2020

TequilaWarrior

T

U

P00017 P00014

Replies: 10

Views: 200

Oct 24, 2020

Reprise

Front crankshaft seal leak... Additive?

Replies: 13

Views: 325

Oct 19, 2020

zaid3ssaf

M

SOLVED! Electrical Gremlins

Replies: 11

Views: 377

Oct 19, 2020

mateo

M

How to Install a Complete Exhaust System on the LL8 4X4 Envoys & Trailblazers

Replies: 0

Views: 99

Oct 16, 2020

MRRSM

4L60e.... To flush or not to flush?

Replies: 18

Views: 405

Oct 12, 2020

Reprise

Y

NEED HELP Intake hose loose with heavy white smoke out from the engine

Replies: 6

Views: 181

Oct 8, 2020

MRRSM

SOLVED! CV axle will not budge

Replies: 10

Views: 242

Oct 6, 2020

KEEBZ489

K

SOLVED! Intermittent metallic noise consistent with wheel speed

Replies: 8

Views: 490

Oct 2, 2020

6716

L

Old Ascender, Whats worth fixing?

Replies: 13

Views: 293

Oct 1, 2020

LtZvesda

L

Rear diff vent tube has a rough hole in it

Replies: 12

Views: 177

Sep 30, 2020

6716

L

Shifter has play/not clicking when in gear

Replies: 3

Views: 170

Sep 30, 2020

MRRSM

Its a few years, but im back

Replies: 8

Views: 330

Sep 28, 2020

ghenny440

Replacing Crankshaft Front Seal [SOLVED]

2 3

Replies: 90

Views: 9K

Sep 23, 2020

djjunior305

P

The dreaded Transmission Flush

2

Replies: 54

Views: 7K

Sep 21, 2020

JayArr

M

Temporary misfire

Replies: 13

Views: 293

Sep 21, 2020

joe mama

J

Coolant flow direction?

Replies: 5

Views: 5K

Sep 20, 2020

Mooseman

NEED HELP Fan Clutch from hell lol

2

Replies: 58

Views: 948

Sep 13, 2020

TJBaker57

Grinding noise a specific RPM

Replies: 16

Views: 276

Sep 4, 2020

gmcman

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