Why does my car sputter and hesitate when at running temp?

1995 CADILLAC DEVILLE CONCOURS
17,800 MILES
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TWAN3300
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I have a 95 cadillac Concours and when I start it cold and drive it will run fine but after about 15 min or at running temp the car will began to hesitate, sputter and eventually cut out. I have to keep cutting it off and on to get where Im going.Does not run hot, no milky foam under my oil cap.Please help.
Sep 20, 2012 at 7:52 PM
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ASEMASTER6371
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check fuel pressure. could be low from failing pump.

start there

Roy
Sep 20, 2012 at 7:55 PM
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TWAN3300
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Is it common for those symptoms to fall under the fuel pump? If so I will have it changed, thank you so much for your help
Sep 20, 2012 at 8:20 PM
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ASEMASTER6371
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do not throw any parts till you determine the failure. go through the checks first. guessing is expensive and most of the time wrong

Roy
Sep 21, 2012 at 12:40 AM