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Old 03-26-2017, 10:32 PM   #1
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Default P0442 engine code

Keep getting the p0442 code for about a year now. Just cant seem to get rid of it ! And that engine light is just so annoying to look at. Anyone have this and find the issue? Im being told that its the purge valve solenoid. I really dont think its the gas cap. Ive had it smoke tested and came back with no leaks. Any ideas? I really just dont want to go replacing things that dont need replacing and get it delt with the first time. Any input would be awesome. I have a 2012 chevy sonic ls hatchback with almost 85,000km.

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Old 03-27-2017, 03:55 PM   #2
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P0442, that's malfunctioning cat right?
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Old 03-27-2017, 09:51 PM   #3
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Google search implies that there's a small leak in the evaporative system because it can't hold a vacuum for a set amount of time.

Check the evap sytem hoses for looseness and holes/cracks. I think the purge solenoid sits on top of the intake manifold.
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Old 03-28-2017, 05:59 PM   #4
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Ok I will today thank you. I know aive googled it a bunch of times just wanna know exactly the problem lol

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Old 05-14-2017, 01:38 AM   #5
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I have the same code; cleared it, and it comes back (after about 3 weeks).
Please post what hose/fitting was the culprit.


Last edited by tsut; 05-14-2017 at 01:49 AM.
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Old 05-15-2017, 08:51 PM   #6
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fill up with gas.
leave the cap off.
start the car.
if it surges (sounds like it's trying to stall out) replace the solenoid on top of the manifold.
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