Engine oil leaks are known to develop around the rear crankshaft (main) seal and engine oil pan gasket.
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Most reported 1997 Ford Aerostar problems
Crossed Oxygen Sensor Wires Can Cause Poor Idle Quality/Fuel Economy
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.
9 Reports
Noise From Synchronizer Shaft Upper Bushing
The synchronizer shaft for the camshaft position sensor can cause a loud squeak or chirping noise due to failure of the upper bushing. The noise may be erratic and is usually present when the engine is warm.
2 Reports
"No start" and stalling due to ignition module failure
Ignition module failure is common and causes a "No start" condition or intermittent stalls.
1 Report