1991 Ford Aerostar Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 1991 Ford Aerostar
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1991 Ford Aerostar ProblemsEngine Oil Leaks
If you experience poor idle quality and fuel economy (and the Check Engine Light illuminates) after the exhaust system or motor has been removed and replaced, it could be that the oxygen sensor wires are crossed at the rear of the motor. Wiring schematics should be checked to ensure that the correct harness plug is connected to the corresponding sensor.
If a noise from the rear end is heard when going around turns or after driving at highway speed for an extended period, this could be caused by a failing deferential clutch kit. An updated differential clutch kit available.
1991 Ford Aerostar Questionscan i get a diagram for the heat and air? i cant get it to blow out of vents inside. (1 answer)
Chirping clicking noise started at rear of engine about a week ago. 178,000miles on engine. Ford aerostar 3.0.