Question about 1993 Buick Roadmaster

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Car will not idle without dying and it also will slowly lose rpms when holding the throttle steady it will drop down so far that it will die I have already changed the cat and the fuel filter . It has gotten worse over the past year. when reving the engine it excellerates strong and does not hesitate. But hold it steady and it will slowly lose rpms and die

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Check the fuel perasure regulator using a hand vacuum pump if it holds preasure check fuel hold preasure and flow preasure

Posted on Sep 30, 2009

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Posted on Jan 02, 2017

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I have a Ford 1990 f250 xlt 7.5 When starting revs up and down slowly then dies sometimes, why?


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