P0442
09-20-2010, 10:51 AM
#1
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P0442
I am started getting this code Saturday while on the way back from visiting my mom in West, Tx. I had the local autozone use their reader and get the P0442 code so I pulled the gas cap off and put it back on and made sure it clicked a few times. Normally it takes just a few minutes and the light goes off it is the gas cap. Got all the way back home and the lights still on, same code, so I replace the gas cap with a new one. The SES light is still on, any ideas what my problem is now and how to fix it?
Here is the information on the code:
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
This is on my 04 Sierra, completely stock other than the intake and vette servo
Here is the information on the code:
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
This is on my 04 Sierra, completely stock other than the intake and vette servo
09-20-2010, 12:56 PM
#2
check the gas cap seal, may need a new one even though u tryed to tighten it. tighten all ur hose fittings, check compression, and pulgs.... what we do at the dealership?
09-20-2010, 02:18 PM
#3
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I am started getting this code Saturday while on the way back from visiting my mom in West, Tx. I had the local autozone use their reader and get the P0442 code so I pulled the gas cap off and put it back on and made sure it clicked a few times. Normally it takes just a few minutes and the light goes off it is the gas cap. Got all the way back home and the lights still on, same code, so I replace the gas cap with a new one. The SES light is still on, any ideas what my problem is now and how to fix it?
Here is the information on the code:
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
This is on my 04 Sierra, completely stock other than the intake and vette servo
Here is the information on the code:
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
This is on my 04 Sierra, completely stock other than the intake and vette servo
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09-21-2010, 11:27 AM
#8
I am started getting this code Saturday while on the way back from visiting my mom in West, Tx. I had the local autozone use their reader and get the P0442 code so I pulled the gas cap off and put it back on and made sure it clicked a few times. Normally it takes just a few minutes and the light goes off it is the gas cap. Got all the way back home and the lights still on, same code, so I replace the gas cap with a new one. The SES light is still on, any ideas what my problem is now and how to fix it?
Here is the information on the code:
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
This is on my 04 Sierra, completely stock other than the intake and vette servo
Here is the information on the code:
A code P0442 most likely means one or more of the following has happened:
* A loose or improperly affixed gas cap
* A non-conforming gas cap (i.e. not factory/original brand)
* A small leak/hole in a fuel vapor hose/tube
* Other small leak in EVAP system
* Faulty vent o-ring seal
This is on my 04 Sierra, completely stock other than the intake and vette servo
Now that this occurred to me, I may be in the clear, cause I cleared the PO442. It wasn't allowing me to pump gas. Did that happen to you, where it shuts off pump?
I had been fighting this for 1-1 1/2 mo. I cleared it & it improved. I'll find out today if it's still an issue if I get gas. IIRC, it's an evap emissions vent solenoid.
Last edited by fastnblu; 09-21-2010 at 11:32 AM.
09-21-2010, 11:27 AM
#9
The light will stay on until the EVAP monitor runs again and the system passes the test, there are a bunch of parameters that have to be met for the EVAP monitor to run. I currently have a check engine light with a code P0446 due to a bad vent valve that I haven't had the dough to replace. Every so often the light will go off for a day or two, until the monitor runs again and the system fails. Have the code cleared and see if it comes back...
09-21-2010, 11:38 AM
#10
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I'll guess it's along the lines of 1 of the 2 things in red. This has been on here before, but I never noticed til I had same problem.
Now that this occurred to me, I may be in the clear, cause I cleared the PO442. It wasn't allowing me to pump gas. Did that happen to you, where it shuts off pump?
I had been fighting this for 1-1 1/2 mo. I cleared it & it improved. I'll find out today if it's still an issue if I get gas. IIRC, it's an evap emissions vent solenoid.
Now that this occurred to me, I may be in the clear, cause I cleared the PO442. It wasn't allowing me to pump gas. Did that happen to you, where it shuts off pump?
I had been fighting this for 1-1 1/2 mo. I cleared it & it improved. I'll find out today if it's still an issue if I get gas. IIRC, it's an evap emissions vent solenoid.
i also got gas sunday night and did not have any problems, different gas station though
Last edited by williebones; 09-21-2010 at 11:44 AM.