engine light on: p 0442 error code

[kylightning73]

hey guys.
so my engine light came on last week and i pulled the code up on the dash and it read P 0442. so i took it down to the dealership and they ran smoke all through the system and checked all the hoses and found no leaks. so saturday my light came back on again and read the same code. i'm taking my truck back down to the dealership again tomorrow. do you guys have any ideas what else it could be?:dontknow: :dontknow: :dontknow:

 

[JTS VENOM PERFORMANCE]

hey guys.
so my engine light came on last week and i pulled the code up on the dash and it read P 0442. so i took it down to the dealership and they ran smoke all through the system and checked all the hoses and found no leaks. so saturday my light came back on again and read the same code. i'm taking my truck back down to the dealership again tomorrow. do you guys have any ideas what else it could be?:dontknow: :dontknow: :dontknow:

had the same prob, gettem to check for a new update on the evap system, if not the valve may be going bad bro

 

[Muzzy]

See THIS thread. I posted some info about this there.

-Muzzy

 

[DRamSrt10]

I have the same problem. The engine check light is still on...it is most caused by gas cap loose. Tightly your gas cap. I did mine and it go away then come back again. I took it to dealership but they found no leaks and I have them erase the codes.