HELP! Engine Light on DTC showing P0442HC Code
Thread Starter
Racer
Joined: Jan 2005
Posts: 332
Likes: 0
From: La Quinta CA
St. Jude Donor '14
HELP! Engine Light on DTC showing P0442HC Code
Code shows this as a EVAP system small leak detected. My search found that this can sometimes be a gas cap leak, or hose leading to solinoid may be leaking.
OK so now what do I do? Sorry to sound like a tool but no question is a stupid one right...
How do I know if it is as somthing as easy as a new gas cap? Just go buy a new one and see if it resets?
Will it damage anything if I drive with this?
Do I need to reset the DTC codes? Im not sure what to do here and dont have a local dealer and/or shop that I know of to take it to.
It is a 2004 Automatic, 9,000 miles and I havent filled it up with gas for about a week and still have 1/2 a tank when the light just came on.
Thanks for any help!
OK so now what do I do? Sorry to sound like a tool but no question is a stupid one right...
How do I know if it is as somthing as easy as a new gas cap? Just go buy a new one and see if it resets?
Will it damage anything if I drive with this?
Do I need to reset the DTC codes? Im not sure what to do here and dont have a local dealer and/or shop that I know of to take it to.
It is a 2004 Automatic, 9,000 miles and I havent filled it up with gas for about a week and still have 1/2 a tank when the light just came on.
Thanks for any help!
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I did find my line between the firewall and the EVAP solenoid was leaking. I bought a new one, but before it arrived I used a rubber hose to connect the fittings. Testing the EVAP line took a bit of a trick, solved with two ballpoint pens. I cut off the end and it will fit and seal within the hose. I then used a miti-vac to check vacuum.
