Engine Tunes/Mods | Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

Lh6 performance

3

3K

05 Trail ext V8 5.3l upgrades

2 3

44

29K

engine oil cooler

0

188

Starter Reliability / Change starter while Pulling a 5.3Lengine?

0

135

'06 Envoy Denali LH6 (5.3) to LQ4 Swap (6.0)

3

2K

4.2L V6 Swap to 5.3L V8

8

29K

Envoy V8 Turbo. Good idea?

1

535

4.2 to 5.3 Swap In Progress

2

27

54K

8

7K

by Ravalli Surfer

Ecu/tcu tune issues

2

461

by EnvoyBoy2004

Cranks but won't start

8

7K

by WashedNScrewed

2004 GMC Envoy 5.3L : Timming Chain

1

437

by Cheep

Changing Spark Plugs on 5.3 L engine

2 3

42

51K

Official Thread: CAN 5.3L SWB Scangauge Codes...

2

20

11K

Low oil pressure / stop engine warning

2

29

60K

Tuned up 5.3 Plugs Wires and Coils

6

2K

by antraw

REV Ignition coils for 5.3 LH6

3

1K

Installed an oil catch can

2

2K

My TB build draft. Opinions welcome and appreciated

2

888

So tired of reading, which tuner for dod disable

9

3K

by 1320

AFM all 5.3 engines

5

4K

by Cheep

Predator 2 tuner

2

2K

What can I do to improve Gas MPG on my 06 Denali.

0

1K

3

1K

Rainier Cold Air Intake.

4

2K

2003 trailblazer ext click won’t start

1

745

Do the pros of AFM delete outway negatives? If any?

3

3K

by Rain

Looking like I'm doing the AFM delete sooner than expected.

0

960

by Rain

Engine over heating after highway speeds

2

2K

by rcf64

Engine started after connecting battery cable and no key in the steering column

2

1K

Sudden loss of power for 2006 Trailblazer 5.3 AFM engine

3

2K

Cylinder Miss Fire

1

900

P0601 Code - Have questions

4

2K

LM4 to Replace {swap} where a LH6 w/ DOD is?

3

3K

by Supercharged111

Turned off DoD/AFM, better economy/power?

4

2K

by Supercharged111