Question about 1996 Pontiac Sunfire

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Gas smell error code po442 what now changed gas cap

What is the best way to check what is wrong do i have to reset code or will it go away

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Possible loose gas cap, or fuel leak, check under the car very well. Is the car starting hard after sitting?

Posted on Oct 25, 2008

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Error code po442


po442 is a small leak detected in the evap system, look for any broken or disconnected hoses, or a leaking gas cap, that is about as far as your going to be able to get at home with out a ton of special tools

Jan 15, 2013 | 2002 Chevrolet Tahoe

1 Answer

How do you fix po442 code ...evaporative emission system small leak


Most likely this is a gas cap issue. That is always what it is when I get that. Usually all I have to do is tighten the cap down correctly and then reset the code.

Aug 22, 2011 | 2004 Hummer H2

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For code#po442


evap system leak small most of the time this code comes from forgetting or properly replace their gas cap--others are gas cap not sealing replace cap-or a small leak in the fuel vapor lines -check cap and reset code if comes back check seal arund cap repair or replace if damaged -if good inspect the fuel lines and hoses for small cracks or damage repair or replace if necessary

Jan 20, 2010 | 1999 Volvo S80

1 Answer

Troubleshooting code PO442 check engine light on. When I put in gas, gas nozzle keeps cutting off like tank is full


The code PO442 is a small leak somewhere in the evaporative emissions control system, the best way to find that is to take to a shop that does smoke tests for emissions.
As far as the nozzle, try changing the position of it the next time you get gas.

Nov 18, 2009 | 1999 Hyundai Accent

1 Answer

Dadge dakota engine check code 0442


po442 is an evaporative fuel leak it could be any thing from a loose gas cap to a stuck purge conrtol solinoid valve or canister close valve, best thing to do in this case is take it to the dealer for an exact diag ,

Oct 17, 2009 | 2003 Dodge Dakota Club Cab

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Codes are Po442,PO420,PO131 and PO401.I beleive these all have to do with exhaust emission or leaks


okay po442 isevap leak check gas cap amd right front tower in engine check evap line for broken hose,po131 bad o2 sensor top sensor on rear exhaust manifold,po420 is bad catalyic converter but could be o2 sensor.i would replace o2 first reset eng lingt and go from there, hope this helps good luck.

Oct 07, 2009 | 2003 Dodge Caravan

2 Answers

Engine error lite P0465


Replacing the EGR valve, its actuator, or your DPFE sensor could all be at fault. I would probably start with the valve itself since it's an EGR leak code. Your gas cap was a wasted repair. The gas cap would cause a P0441 or 445 evap code, but not an EGR code.

Oct 07, 2009 | 2000 Chrysler Concorde

4 Answers

P0442 check engine light code


The computer that read the code for you can also reset it.  If you don't have one, you can go to your local auto parts store and have them reset it for you.  This is what your code means P0442 Evaporative Emission Control System Leak Detected (small leak).  This is what Causes it and possible fixes: CausesA 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
Possible SolutionsWith a P0442, the most common repair is to:
  • Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
  • Otherwise, replace the gas cap, or
  • Inspect the EVAP system for cuts/holes in tubes/hoses

May 21, 2009 | 2005 Kia Sorento

1 Answer

06 chev malibu 6 cy code po442, allready changed gas cap, what else to look for?


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

Jan 31, 2009 | 2001 Dodge Caravan

1 Answer

Diagnostic code PO442


PO442 is an Evaporation Emission leak. It's probably a loose gas cap. The fix would be $96.00 at our dealership, since your truck is out of warranty. You may be able to get it fixed cheaper, but you'll be charged a diagnostic fee.

Jun 24, 2008 | 2002 Mazda Protege

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