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RPM's Drop while Driving

Old Oct 9, 2009 | 01:48 AM
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Default RPM's Drop while Driving

Hey everyone. Well here is what I am dealing with 97 disco 103000 miles. I was driving it about 2 weeks ago and out of the blue it felt like fuel wasnt getting to the motor and the RPM's just dropped them went back up then dropped almost like when a car dies from runnig out of gas. I though maybe bad gas so to be sure i changed the fuel filter and found the best gas possible. It stopped but then on my way to work tonight it started again and then after 20 minutes stopped? Any Ideas?

Mike
 
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Old Oct 9, 2009 | 07:56 AM
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Possible fuel pump, crank sensor,fuel pump relay, hell it could be so many things. Do you have a check engine light, if so what are the codes?
 
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Old Oct 10, 2009 | 02:20 AM
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no check engine light. it happens intermitted. I also noticed that at around 70 mph disco starts to shake real bad then almost like its chocking? Do you think that the TPS could be gummed up? Im at a lost on the issue with it just dropping rpms today for like 10 mins it went from 3000 to 2500 and bounce back and fourth then revs back up?
 
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Old Oct 10, 2009 | 02:45 AM
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my money is on failing fuel pump
 
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Old Oct 10, 2009 | 09:47 AM
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I forgot one, Vehicle Speed Sensor.
 
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Old Oct 11, 2009 | 02:50 AM
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i never though of the vss. It was going it before i changed the fuel filter so i will check out the vss. I will let you know what happens.
 
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