A Lack of power, poor fuel economy, and black smoke from the exhaust can be caused by a defective MAP (manifold absolute pressure) sensor.
Problems for specific Ford Taurus years:
Car problem reports
Report A Problem
Problem with your car? See what our experts say or submit your own.
Newest reported 1990 Ford Taurus problems
Clunking Noise and/or Damaged AC Hose
Worn motor mounts can cause the motor to rise during acceleration, causing a clunking noise and possibly damaging the AC hoses. Damage to the AC hoses can cause a loss refrigerant resulting in no cold air from the AC. The motor mount will need to be replaced prior to repairing the damaged hose or the problem will continue.
8 Reports
Engine Stalling and/or Hesitation on Acceleration due to Faulty Idle Air Bypass Valve
If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve. This valve helps the vehicle idle steady when the accelerator pedal is not pressed.
3 Reports
Clunk and/or Rattle Due to Worn Inner Tire Rod Ends
While steering, if you hear a clunk or a rattle, or if you experience premature tire wear, this could indicate the inner tie rod ends are loose or worn and will require replacement.
6 Reports
Engine Oil Pan Gasket May Leak
The engine oil pan gasket can develop a leak. Leaking oil may accumulate on the exhaust system resulting in a burning smell. Replacing the gasket should correct this leak.
120 Reports
Coolant Loss, Engine Overheating, White Smoke From Exhaust
White smoke coming from the exhaust could indicate that a head gasket has blown or there is a cracked cylinder head. Our technicians tell us that removal and inspection of the cylinder heads will be required to confirm a crack is present.
5 Reports
Bad motor mount can cause MAP sensor vacuum hose to weaken or pull off
Bad motor mounts can cause the motor to move excessively, which pulls on the MAP sensor vacumn hose every time you step on the gas pedal. This either weakens the hose so it collapses (causing low vacuum flow) or pulls the vacuum hose that connects the intake manifold to the MAP sensor completely off of the sensor. When the hose is disconnected from the MAP sensor, a full rich condition will result.
2 Reports
Bad motor mounts may damage engine coolant temperature sensor wiring
Bad motor mounts can damage the engine coolant temperature sensor wiring, causing intermittent full rich conditions.
2 Reports