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2005 Hyundai Elantra Question: check engine light came on and it said it the gas cap but fix it and it came back



mikeq, 2.0L 4 Cylinder, Phoenix, AZ, August 11, 2010, 00:43

my check engine came on after i smell gas inside my car so a machanic disided to check the fuel pump since it was under the back seat he started but stop after he learn that the gasket had couldnt be bought a just any store so he close it after 10miles the check engine light came on it was the gas cap code so we checking the fuel pump and the car didnt have a fuel pump gasket so we bought one at the dealer ship,after putting the gasket and clearing the code, the smell stop but the check engine light keep coming one. what can be the proble since i dont have the money for a dignostic

3 Answers
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  • Answer #1

    mastertech6371 August 11, 2010, 05:01

    unless you have a scan tool. then it is a crap shoot. you need the code number and a flow chart. assuming a gas cap is usually wrong with so many components in the evap system.
    assuming it was not on before, i would investigate a leak still at the fuel pump area. make sure the gasket is seated correctly and tight.


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  • Reply

    mikeq, August 12, 2010, 20:01

    i took it to autozone the code they gave me was the gas cap code but it keep comming on, i check the gas millage and its getting 23city not highway but at the moment im un employed and cant aford the dignostic will this problem become bigger?

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  • Answer #2

    Visitor, August 25, 2010, 07:51

    go to pepboys or auto zone they do it for free.

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  • Answer #3

    Visitor, December 13, 2010, 16:59

    replace the gas cap.or tighten the cap after filling with gas. usually when you hear about 4clicks.

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