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1999 Mercury Mystique LS 2.5L Accel by Itself
Posted to Ford Driveability on 4/13/2000

On first start up of the day the idle is extremely high and accells the car in excess of 40 mph. this concern is very interminent, it has been duplicated by 2 different people, the car has no dtc's and the pid monitor is all normal.

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car Vehicle Data

1999 Mercury Mystique LS

VIN 1MEFM66LOX
Engine2.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsAccel by Itself
OccursIntermittently, When First Started
Message Closed

car Vehicle Data

1999 Mercury Mystique LS

VIN 1MEFM66LOX
Engine2.5 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / EFI
EmissionsOBD-II Compliant
SymptomsAccel by Itself
OccursIntermittently, When First Started