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Engine & Drivetrain

Repairs, tuning, modifications, & maintenance.

Vortec 4.2L I-6

Threads: 2.3K

Messages: 35.4K

Threads: 2.3K

Messages: 35.4K

How much oil pressure is enough?

Monday at 10:04 PM
littleblazer

Drivetrain

Threads: 971

Messages: 12.1K

Threads: 971

Messages: 12.1K

what causes hub bearings to fail so often ?

Tuesday at 8:00 AM
littleblazer

Vortec 5.3L V8

Threads: 356

Messages: 4.7K

Threads: 356

Messages: 4.7K

40 to 20 oil pressure

Feb 3, 2021
Mike534x

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

K

transfercase output seal part # ?

Replies: 4

Views: 90

Today at 1:55 PM

gmcman

M

2006 envoy 4.2L no crank no start!!

Replies: 9

Views: 106

Yesterday at 12:43 PM

Motocross103

M

SOLVED! CV axle will not budge

Replies: 15

Views: 508

Monday at 8:24 AM

KEEBZ489

K

M

4x4 issue

Replies: 5

Views: 106

Feb 25, 2021

Mooseman

S

SOLVED! Trans oil cooler line connector issue

Replies: 13

Views: 472

Feb 20, 2021

matermark

C

4.2 keeps losing oil pressure

2

Replies: 72

Views: 1K

Feb 17, 2021

chuey_316

C

A

Transmission Cooler Line Fittings different for 2002?

Replies: 8

Views: 186

Feb 7, 2021

JayArr

G

Strange oil pressure gauge reading.

Replies: 4

Views: 113

Feb 3, 2021

GeoGoGo

G

K

Truck died Need help asap

Replies: 17

Views: 280

Feb 3, 2021

KEEBZ489

K

B

Transmission Line leak at the wheel well head clamp... temporary fix?

Replies: 22

Views: 348

Jan 28, 2021

Mooseman

Stabilitrak Error?

Replies: 4

Views: 186

Jan 24, 2021

fletch09

T

NEED HELP Cylinder Head and timing chain headaches.

2

Replies: 51

Views: 2K

Jan 23, 2021

Mooseman

SOLVED! starting issue- replaced neutral safety switch

Replies: 13

Views: 266

Jan 20, 2021

bobo52

R

Cleaned throttle body - Still misfire (p0300 P0301)

Replies: 32

Views: 433

Jan 16, 2021

richphotos

R

J

NEED HELP 2008 Chevy trailblazer Lt 4x4

Replies: 10

Views: 317

Jan 5, 2021

JerryIrons

J

U

P00017 P00014

2

Replies: 42

Views: 738

Dec 28, 2020

Uncleenvoy

U

C

Tranny dipstick broke

Replies: 2

Views: 119

Dec 27, 2020

Redbeard

R

V

NEED HELP Doesn’t stay running when cold

Replies: 20

Views: 409

Dec 24, 2020

Voy07

V

J

Replacement Engine Suppliers? 2002 Envoy SLT

Replies: 19

Views: 679

Dec 21, 2020

TollKeeper

N

Cold Start 05 TB LS

Replies: 6

Views: 323

Dec 20, 2020

MRRSM

M

03 Trailblazer No crank, No start

Replies: 2

Views: 137

Dec 19, 2020

Mrautoserv72

M

M

Temporary misfire

Replies: 14

Views: 448

Dec 18, 2020

joe mama

J

L

Trailblazer engine replacement riddle

Replies: 8

Views: 231

Dec 15, 2020

GeeOhhX

G

M

Water Pump

Replies: 3

Views: 152

Dec 14, 2020

MRRSM

Beat auxiliary cooler to get

Replies: 1

Views: 128

Dec 12, 2020

Mooseman

Transmission codes and hard shifting

Replies: 10

Views: 426

Dec 10, 2020

Mike534x

Vibration in drive 900 rpm

Replies: 8

Views: 244

Nov 28, 2020

dla442

Carbon cleaning the 4.2L LL8. Experiment

Replies: 2

Views: 325

Nov 22, 2020

zaid3ssaf

4.2 L oil pressure measurement-cold to hot

Replies: 7

Views: 265

Nov 22, 2020

TJBaker57

4.2L Dieseling sound

Replies: 9

Views: 333

Nov 16, 2020

MRRSM

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