Engine Stalling and/or Hesitation on Acceleration due to Faulty Idle Air Bypass Valve on Ford Escort

Problem Description and Possible Solution

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.

Problem Data
RepairPal Verified
Average mileage: 123,766 (114,000–132,300)
Engines affected: 1.9L 4 Cylinder, 2.0L 4 Cylinder, 2.0L 4 Cylinder DOHC, 2.0L 4 Cylinder SOHC
4 model years affected: 1990, 1991, 1997, 2003
8 people reported this problem
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whenever I am at a stop sign or stop light car idle very roughly.