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This has been goin on for about a yr.The RPM’S are at about 600-700 when a/c is off and stays level when in gear at red light.If I turn a/c on it increases about 300 rpm and goes up and down every couple seconds. Had alternator replaced about 9 months ago and it stopped for awhile and started again. Just had the fuel pump replaced and it was ok for about 30 mins.When this happened a yr ago it did the same thing but fluctuated twice as much.
This has been goin on for about a yr.The RPM’S are at about 600-700 when a/c is off and stays level when in gear at red light.If I turn a/c on it increases about 300 rpm and goes up and down every couple seconds. Had alternator replaced about 9 months ago and it stopped for awhile and started again. Just had the fuel pump replaced and it was ok for about 30 mins.When this happened a yr ago it did the same thing but fluctuated twice as much.
This has been goin on for about a yr.The RPM’S are at about 600-700 when a/c is off and stays level when in gear at red light.If I turn a/c on it increases about 300 rpm and goes up and down every couple seconds. Had alternator replaced about 9 months ago and it stopped for awhile and started again. Just had the fuel pump replaced and it was ok for about 30 mins.When this happened a yr ago it did the same thing but fluctuated twice as much.
This has been goin on for about a yr.The RPM’S are at about 600-700 when a/c is off and stays level when in gear at red light.If I turn a/c on it increases about 300 rpm and goes up and down every couple seconds. Had alternator replaced about 9 months ago and it stopped for awhile and started again. Just had the fuel pump replaced and it was ok for about 30 mins.When this happened a yr ago it did the same thing but fluctuated twice as much.
2000 Ford Expedition 4.6. RPM fluctuates about 300 RPM’S when idling in gear at red light only when a/c is on