Question about 1997 Oldsmobile Cutlass Supreme

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The Problems are the Serv Eng Light has come on recently along with the engine kind of sputters at low idle and it has a little bit of a rough start. I live in Cleveland and these problems have occurred at the same time minus temperatures and arctic conditions arrived which leads me to thinking there may be a connection.

I just got this car before winter and it is in good condition. I had the oil changed a month ago and the car has been running great until the sub arctic temperatures rolled in recently. The car sits outside but I make sure to warm it up for 10-15mins daily or before I drive it anywhere. The car has no leaks and warms up just fine in about 5-10 mins in the sigle digit temperatures so I presume the anti-freeze is efficient. Please help me in localizing a diagnosis. If it is something simple like a fluid change or a part I can pick up at AutoZone then I'll do it myself, but if it's something like an intake or timing belt then I may need a mechanic. I am willing to run some tests of my own and keep this forum up-to-date in real time for some good advice. Thank you!

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  • aurora5746e Jan 19, 2009

    Have you ever taken your car to AutoZone and have them hook it up to their diagnostic tools? The only reason I ask is A: I have to wait until tomorrow morning when they open to find out and B: the research I have read leads me to believe they either won't help me because they don't offer this service for free or their diagnostic tool only is a code reader and will only give me a code. I guess we'll find out either way soon enough.

  • aurora5746e Jan 19, 2009

    Curious.. I refined my research to fuel filters and it does show all the symptoms of a bad or partially clogged fuel filter. I also found out a little known fact that they should get replaced every couple of years for preventative maintenance especially if you drive on dirt or gravel roads and/or use low grade gas or gas with alcohol in it. I will take your advice and head to AutoZone to get the code and I will get back to you today. Thank you for the suggestion!

  • aurora5746e Jan 20, 2009


    Dear CRTN,

    I went to AutoZone and the crew plugged in their Diagnostic Tool and they printed me out a copy of the report. The following is that report.


    EGR valve pintle position circuit
    The EGR pintle position was 10% of the expected position
    Probable Causes
    1. Failed EGR valve
    2. Open or sort circuit condition


    Your intuition and this diagnostic report lead us to a possible fuel injector or fuel filter problem and thus concluded that an affordable, do-it-yourself, quality fuel injector fluid with octane booster would be a logical course of action to take first due to all the circumstances which derived to this car problem.

    Once, I added the fuel injector fluid with octane booster and cleared out the injectors safely on the highway at higher RPM's, the car's symptoms began to clear up and run like new again all within 15 mins of driving around. However, the Check Eng Light is still on, but I was informed by AutoZone that it may take around 30 ignition turns for it to turn off if the problem is fixed. Even if the light turns off I will tune up the car, change the fuel filter, as well as other preventative maintenancing once the weather begins to warm up within the next couple months.

    Thank you for you rapid responses and very helpful information. From what I've researched about you, you definately have an igniutive mind and I am grateful for your assistance! The world needs more humanitarians like you!


  • aurora5746e Jan 20, 2009

    I will reset the computer via the battery terminal tomorrow and let u know if the light stays off. Thanks again, Mr. Scott.!



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Go To A Local Auto Zone, Since Your Serv Engine Light Is Illuminated They Can hook Up To your Diagnostic and the car will tell them whats wrong.
Also A Really Big plus Its FREE

Posted on Jan 19, 2009

  • Michael Fisher
    Michael Fisher Jan 19, 2009

    I Have And They Do Give You The Code If There is One Present.
    The Code Can Then Be Googled Or Provided Here And We Will Find Out What It Means.

    I Can Offer This. Most Of The Time When It Gets Cold Peoples Fuel Filters Go Bad For Some Strange Reason. Im Not Saying This Is Your Problem But It Is Possible.

  • Michael Fisher
    Michael Fisher Jan 20, 2009

    Much Appreciated I Was Glad I Could Help You. I Am %100 Grateful For Your Wonderful Compliments And Helping You Is As Rewarding As Fixing It Myself.
    Michael Scott

    Also Just So you know You Can Remove The Negative Battery Terminal For About A Minute And It Will Reset Your Engine Light.



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