Question about 1983 Oldsmobile Delta 88

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Car will not run, once running will not run smooth once warmed up

I have taken it to a mechanic, put way more $ into than i paid for the car. I took the catalytic converter off of it, had no immediate problems. Then it got to wear once it warmed up, it would start missing, like it was out of time. Took it to a local mechanic, he went over it, and over it and came to the conclusion that there was a sensor out somewhere, it would cost me, for him to find it. he recommended that i switch it over to old school, new manifold, distributor, and carb. Any help would be greatly appreciated.. I could go either way to get the ol girl runnin..sensor or switch it over, i just need little advice.

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  • Anonymous May 05, 2009

    basically the same thing with our car. A 2000 Nissan Maxxima, We have put a fuel pump/filter, a mass airflow sensor, plugs and it still is not working right. We paid a reasonable price for this car just last Fall and now have paid that much more to try and fix it. We have also had to put a transmission and radiator in it. I just want to blow it up and forget about it.

  • Mike Butler
    Mike Butler May 11, 2010

    First of all, lets find out what engine yoou have in the old girl. Secondly, why was catalytic converter removed, was it suspect in causing problems? Can you start from the begginning and give us a rundown of symptoms & time frames involved. Then we'll try to help you decide which way to go, as complete change over sounds a little extreme to me.



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Check the exhaust manifolds. On a lot of the engines there is a little vaccuum operated valve that is supposed to help the engine warm up faster to reduce emissions. A lot of times it gets so rusty that it gets stuck and will make the engine run rough after it warms up. Had it happen on my 83 with the 307, so I disconnected and plugged the vaccuum line and made sure the valve was open. Also check for a stuck/bad egr valve or other vaccuum leaks.

Posted on Feb 11, 2009


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