SERVICE ENGINE SOON light ON. No codes present.
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Cadillac Seville / Cadillac Eldorado Forum Discussion, SERVICE ENGINE SOON light ON. No codes present. in Past Cadillac Vehicle Discussion; Hi! I have a 1994 Cadillac Eldorado. I already posted a thread here about this SERVICE ENGINE SOON light and ...
  1. #1
    calai is offline Cadillac Owners Member
    Automobile(s): 1994 Cadillac Eldorado
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    Apr 2013
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    Unhappy SERVICE ENGINE SOON light ON. No codes present.

    Hi! I have a 1994 Cadillac Eldorado. I already posted a thread here about this SERVICE ENGINE SOON light and a SERCICE RIDE CONTROL message. Thanks to members of this forum I got rid of the SERVICE RIDE CONTROL message. But my problem now is the SERVICE ENGINE SOON light.

    I already did check on the battery as one of the members here told me. I removed the negative cable for like 10-15mins. When I ran the car, after less than a mile running the light came on again. There are no codes that are current now on the diagnostic panel. I even had it removed with the help from a mechanic but still it comes back. Can't feel anything wrong with the car whatsoever, but I know I shouldn't rely on that feeling either.

    Though I can smell strong scent of gas as soon as I enter and leave the car from a trip. I already checked the gas cap too.

    I'm about to renew the registration of the car and a smog test is needed by the DMV here in CA. I'm already aware that a Service Engine Soon light automatically fails the test. Please help me. Any idea that can help me with this is greatly appreciated. Cheap repairs to serious repair ideas would most likely be needed.

    THANK YOU IN ADVANCE!

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  3. #2
    Mafiaman111 is offline Cadillac Owners Fanatic
    Automobile(s): 1998 Cadillac Eldorado 173000 miles Black on Black
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    Re: HELP! "SERVICE ENGINE SOON" Light ON. No codes present.

    check for a rusted out fuel filler neck or leaking gas lines

  4. #3
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
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    Re: HELP! "SERVICE ENGINE SOON" Light ON. No codes present.

    if the Service Engine Soon light is illuminated -
    there IS a code stored - check again -

  5. #4
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: HELP! "SERVICE ENGINE SOON" Light ON. No codes present.



    Quote Originally Posted by calai View Post
    Though I can smell strong scent of gas as soon as I enter and leave the car from a trip. I already checked the gas cap too.

    If you can smell gas, you have a leak. Most common would be a rusted out filler pipe or a ruptured FPR.

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