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

Cranks but won't start

8

4K

by WashedNScrewed

2004 GMC Envoy 5.3L : Timming Chain

1

210

by Cheep

Changing Spark Plugs on 5.3 L engine

2 3

42

46K

4.2 to 5.3 Swap In Progress

2

25

41K

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

2

20

10K

Low oil pressure / stop engine warning

2

29

48K

Tuned up 5.3 Plugs Wires and Coils

6

2K

by antraw

REV Ignition coils for 5.3 LH6

3

959

Installed an oil catch can

2

1K

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

1

1K

My TB build draft. Opinions welcome and appreciated

2

582

So tired of reading, which tuner for dod disable

9

2K

by 1320

AFM all 5.3 engines

5

2K

by Cheep

Predator 2 tuner

2

1K

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

0

822

3

923

Rainier Cold Air Intake.

4

1K

2003 trailblazer ext click won’t start

1

562

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

3

2K

by Rain

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

0

639

by Rain

Engine over heating after highway speeds

2

1K

by rcf64

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

2

912

Sudden loss of power for 2006 Trailblazer 5.3 AFM engine

3

1K

Cylinder Miss Fire

1

726

P0601 Code - Have questions

4

2K

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

3

2K

by Supercharged111

Turned off DoD/AFM, better economy/power?

4

1K

by Supercharged111

0

611

by Bigeye

/C pressure switch hookup for wideband in HPtuners

0

492

by Fastmax32168

3

3K

P0343 after cam swap

1

1K

4.2L V6 Swap to 5.3L V8

6

23K

2

1K

by AWD V8

Engine noise (audio)

4

1K

Lh6 performance

1

3K

by omc8