Question about 1990 Cadillac Fleetwood

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My 1990 cadillac has codes what do they mean?

I drive fine and quiet until i stop for to long it cuts off so im trying to find out what are some possibilitys that will make this occur.

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  • larry blais
    larry blais May 14, 2010

    If you know the code/s digits then please tell me what they are. I can take the numbers and give you the definition.

  • rad6207 May 14, 2010

    You didn't tell us what codes you have, so we can't tell you what the problem is, or what the causes are.



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What codes do you have??? Here is a link for you to retrieve your DTC codes that may indicate what your car's issue is for you to address.
Thank you for using fixya and good luck.

Posted on May 14, 2010


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E49 code on cadillac deville 1990


(Quote) I looked up code E49 and there is no such code.

The above quote is from my colleague named “txkjun”. With all due respect to him and his “Guru” status he is wrong. The code “E49” does exist, and it is an “AIR management system error".

At this time I would like to apologize for typing a word that didn’t belong in my response.

You see, when I said the code “E-49” “DOES NOT” exist I was responding to the answer that: “Txkjun” gave you.

I meant to say that the code “DOES” exist, but I simply typed in the word “NOT” by accident.

I'll get back to you with repair procedures in a few hours.

Thank You.

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My car

well if u have the 4.9 it may possibly be the valves seals leaking after they warm up they swell once you start drivin it burns off. the flow of the presure keep from seapin. now if it is white smoke you got water leakking in somewhere and you need to seek immediate help

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