P0442

[cllake]

My mil just came on with p0442. I looked into it and it could be a HUGE variety of things. Just wanted your guys opinions on COMMON problems that I can look into first.

Thanks,
Cllake

 

[AngryLepercon]

Check Vaccum lines for holes or bad seals. Prob the most common.

 

[cr_the_machinist]

My truck gave me that code when I put a locking gas cap on my truck that the previous owner gave me along with the truck. It popped of that code within 100 miles. I put the OEM cap back on and no more codes.

 

[cllake]

Thanks guys, I finally have some time today to look into it.

 

[cllake]

It ended up being my gas cap.

Thanks guys.