1986 Ford Ranger Repair Question
Topics covered: Engine, Fuel pressure, Sensor.
Mileage: No information provided.
Mileage: No information provided.
Asked on September 8, 2009
1986 Ford Ranger idle
Engine Performance problem
1986 Ford Ranger 4 cyl Two Wheel Drive Manual 100000 miles
wont idle, runs rich
1986 Ford Ranger 4 cyl Two Wheel Drive Manual 100000 miles
wont idle, runs rich
Asked by chrismcman@gmail.comAnswer
Replied on September 8, 2009
Running rich:
Could be caused by the following a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
