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

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.

RepairPal Verified
Average mileage: 103,000 (70,000–136,000)
Engines affected: 2.9L V6, 4.0L V6
1 model year affected: 1990
4 people reported this problem
2 people shared problem details
1990 Ford Ranger- 2.9L V670,000
1990 Ford ranger will run great till it gets hot then will stall out and gives me a hard time starting up then when it starts it bogs din when I press gas
1990 Ford Ranger- 4.0L V6
hesitation when you give it gas
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