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

5.3 swap to colorado

7

11K

by 288

VVT Mod to adjust exhaust timing

3

133

by Ravalli Surfer

0

98

Banks- Pedal Monster

2

119

by Ravalli Surfer

4.2 to 5.3 Swap In Progress

2

34

59K

by Ravalli Surfer

3

356

The "Homemade TBSS"

6

504

[SOLVED] 06 Envoy DENALI 5.3l v8 PO307

12

9K

by Ravalli Surfer

Lh6 performance

3

4K

05 Trail ext V8 5.3l upgrades

2 3

44

31K

engine oil cooler

0

312

Starter Reliability / Change starter while Pulling a 5.3Lengine?

0

219

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

3

3K

4.2L V6 Swap to 5.3L V8

8

31K

Envoy V8 Turbo. Good idea?

1

869

8

7K

by Ravalli Surfer

Ecu/tcu tune issues

2

710

by EnvoyBoy2004

Cranks but won't start

8

7K

by WashedNScrewed

2004 GMC Envoy 5.3L : Timming Chain

1

523

by Cheep

Changing Spark Plugs on 5.3 L engine

2 3

42

53K

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

2

20

12K

Low oil pressure / stop engine warning

2

29

65K

Tuned up 5.3 Plugs Wires and Coils

6

2K

by antraw

REV Ignition coils for 5.3 LH6

3

2K

Installed an oil catch can

2

3K

My TB build draft. Opinions welcome and appreciated

2

1K

So tired of reading, which tuner for dod disable

9

4K

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

3K

2003 trailblazer ext click won’t start

1

842

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

3

4K

by Rain

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

0

1K

by Rain