speedometer odometer problem

Help!! Need quick reply must get home from vacation.....I have a Mercury 1998 Sable.....at high speeds the speedometer act eratically jumping from 0 to the speed of the car and the "service car soon" light comes on and the o/d light comes on....if the car rests for awhile the problem goes away temporarily only to come back when high speed is maintained.....the odometer also ceases to operate when the speedometer is down on 0 and remains there for some time.....the car can travel for miles without the operation of either....it may be blockage in air hoses???.....thank you for any help you can offer.

Reply to
tedbsails
Loading thread data ...

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.