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

Knock sensor code T/S

8

11K

P0300 2003 TB After Cam Sensor, Cam Solenoid and Thermostat Change

3

2K

What else can be done when replacing a head gasket?

6

268

by 2005AscenderXUV

4.2L Turbo Kit?

2

34

65K

2 3

41

22K

by Dustinmccall

02 Fuel pump not 'humming' when ignition is turned on

3 4 5

94

3K

by mikejenner972

2004 TB, 6-cyl. occasional miss

2

370

Oil galleys for pressure sensor, turbo feed

10

4K

P0300 code killing me

7

7K

Code will not go away!! HELP!

7

2K

Replace TPS (throttle position sensor)

7

52K

Vortec 4200 Injector location/Replacement

9

19K

Enigne wiring 4.2l

2

247

by [email protected]

HELP! P0300 after engine swap

4

1K

Gas Mileage improvements!!

2 3 4

73

46K

by Ravalli Surfer

Rough shut down

11

2K

05 Trailblazer I6 engine oil leak

1

819

[SOLVED] Envoy falls on its face.

18

4K

Swap 08 2WD Body to 08 4WD Frame

0

227

Swapping out 4.2 for 4.2 and gears question

0

302

by BlueC7

Another p0171 thread

1

229

another P0300 thread

5

471

by Ravalli Surfer

DTC P0300 Random Misfire

2

26

55K

0

462

Fuel smell when parked in garage

1

728

After market motor mounts

1

970

What weight oil do you use?

15

93K

Can any tuner with efi live tune P10 PCM for turbo?

3

2K

trailblazer LS 5.3 to lq4 swap

2

3K

Valve cover gasket job?

6

5K

16

3K

4.2 6 engine issues ??

0

954

4

880

by dh4645

Engine Knocking or Noise

1

1K

by LSXHP

2

2K

by B_rock