Check Engine 01 GMC

  • shaley
    Milford IA
    Posts: 2178
    #1264619

    My check engine light came on Friday, unhooked the battery but still is on. Seems to run right and everything looks good and all fluids are full. Anyway to check the code easily or should I make a appointment at the service center?

    brad0383
    Farmington, MN
    Posts: 354
    #809939

    Any good auto parts store has code readers you can use.

    trumar
    Rochester, Mn
    Posts: 5967
    #809940

    Go down to a Autoparts store like checker or Auto Zone and have it scaned for free before you go to shop.Could be an easy fix

    absolute2ks
    Chippewa Falls, WI
    Posts: 674
    #809943

    check your gas cap to make sure it is tight

    shaley
    Milford IA
    Posts: 2178
    #809948

    Quote:


    check your gas cap to make sure it is tight


    Forgot about that one, will check it later when I take the kid home.

    Eric Rehberg
    Eau Claire, WI
    Posts: 3071
    #809986

    If you were at about a half a tank of fuel when it came on that may be the issue. Try filling it back up and be sure the cap is clicked at least 3 times. Will probablly take about 20 miles or so for it to turn off. If that doesnt work, stop at a parts store and use a scanner. Very very simple and will tell you whats wrong

    Bassn Dan
    Posts: 977
    #809987

    It could be the Oxygen sensor. See if kicking it into passing gear to “clean her out” will make the light go out. If that is it, it’s just a temporary “fix” to do this and the light will come on again every so often.

    Good luck.

    Dan

    dandorn
    M.I.N.N.E.S.O.T.A.
    Posts: 3207
    #810065

    I’d also say O2 sensor. I had an intermittent SES light on
    my 99 Suburban that I thought might be the gas cap.
    It ended up being the O2 sensor.

    Dan

    Batman09
    Michigan
    Posts: 121
    #810066

    O2 sensor probably.

    woody-1961
    Menomonie,Wi
    Posts: 547
    #810239

    there are at least 2 on that truck and they are about $40.00 give or take.Auto zone will rent you the special socket you need to chance it free of charge..you just give them a deposit and when its returned you get it back..good luck.

    shaley
    Milford IA
    Posts: 2178
    #810255

    Well took the gas cap off put it back on and the light went off going to work this morning, if it stays off I’m a happy camper. Only 94K on it it’s like new yet.

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