Question about 1996 Pontiac Sunfire

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The check engine light is on. I had a code ran and it said either the gas cap is loose or the seal is going. what are the details and cost on this repair?

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New gas cap is less than $10-it that is your issue

Posted on Mar 21, 2011

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Replace the cap should do the trick if you need a price call your local autoparts store and ask.

Posted on Mar 21, 2011


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CODE is this a false code or...i replaced all spark plugs and now this code remains

The P0441 code indicates that there is improper purge flow in the EVAP system. There are many things to check for this code. First a loose gas cap can trigger this code, Remove gas cap and check the rubber seal on cap, put vaseline on the seal and replace back on vehicle, or replace cap if bad. A broken or loose vacuum line, and also check the purge valve in charcoal canister. Hope this steers you on the right track. God-Bless! Rotten egg smell is caused buy a bad converter-- Here are five signs that something may be wrong with your catalytic converter:
  • Your vehicle's fuel efficiency suddenly drops.
  • Your vehicle doesn't accelerate when you step on the gas pedal.
  • Your vehicle may refuse to start.
  • Your vehicle fails an emissions test.
  • The MIL or Check Engine light comes on.

Nov 19, 2015 | 2006 Kia Optima

2 Answers

Hi. My 2004 Maserati coupe has the check engine light on now. What could make that light come on? Could it be something simple? Or will it cost me an arm and a leg?

The issue can be either simple or complex. The next step is that you need to pull the error code(s) from the computer. REMEMBER the codes are a clue and not necessarily the culprit.A loose vacuum hose can throw a lean cylinder error, as well as others.

Jan 26, 2012 | 2005 Maserati Coupe Cambiocorsa

1 Answer

Ran out of gas recently. when refueled and started again,check engine symbol stayed on? well mainted and has always ran great since new.

Sometimes the check engine light will come on if the fuel cap is not on tight enough. Check the fuel cap for an intact seal and install at correct tightness.

A major auto parts store will read out the stored trouble code in the car's computer for free. If the code pertains to the fuel EVAP system, the code probably set because you ran out of gas. Copy down the code and then have it erased. The check engine light should go out. If it comes on again, have the code read and the problem checked out.

Mar 05, 2011 | GMC Sierra Cars & Trucks

1 Answer

Check engine light just came on tonite and ran the scanner and it says PO4055 code and also gas cap loose tightened the gas cap is this a vaccum hose on the emmission system ?

if the cap was loose then just drive around and the light should go out in a week or so depending on how many start/stop cycles you do. You could disconnect the neg battery but that would mess with other things, sooo just be patient. The light will go out on its own after the computer is satisfied there is no leak. A scanner can reset the light.

Sep 13, 2010 | Ford Crown Victoria Cars & Trucks

2 Answers

My check engine light came on today I stopped by Autozone for the free check engine light test. He said it was the gas cap. I bought the $10.00 cap but have not put it on. I'm just wandering if this could...

I think that the autozone guy should learn how to read a scanner and tell you the codes so that you can verify the problem
the only problem requiring a gas cap will show up as an EVAP problem and the cap shows as a large air leak which means that the cap was not properly fitted or tightened
he could have reset the light with the scanner
removing a battery terminal looses radio codes and will affect the ECM program so should be only considered after due consultation

Jun 27, 2017 | Cars & Trucks

3 Answers

Check engine light comes on in a 07 sebring when the gas cap is removed and the engine is started there is no change in the indicator.

this is normal, you should not have engine running when re-fueling, fuel gauge moves very slowly if key is on while fueling, turn key off and then on and should read proper level.

Mar 01, 2010 | Chrysler Sebring Cars & Trucks

1 Answer

Engine check light is on what i can i do

Most of the time Check engine light will come due to Gas and gas cap issues. If you ran out of gas and gas lost pressure it will bring the light on. Make sure to fill take with premium (91 octane) gas and make sure gas cap is closed completely. loose gas cap will cause the engine light to come on. If after doing this you still get the engine light warning, take to authorized mercedez deal for code check.

Feb 17, 2010 | 2007 Mercedes-Benz C230 Sedan

1 Answer

Check engine light comes on if gas cap is loose (according to the dealer) - not really wanting to go back to the dealer repeatedly for a quick fix to turn off the light, but not wanting to ignore the check...

replace the gas cap .. clean the gas filler pipe where it seals against the gas cap .. .. even a small crack in the rubber seal will trigger the check engine light ..

Jun 25, 2009 | 2002 Toyota ECHO

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