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1990 Problem With Idle Air Bypass Valve May Cause Engine Performance Problems

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.

Affected Model Years

This issue affects model years 1990, 1992, 1993, 1994, 1995, 2003, .

31 people reported this problem

  • 1990 70,000 Miles
    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 0 Miles
    hesitation when you give it gas
  • 1990 0 Miles
    Stalls out sometimes when I'm stopped and I give it gas and it chugs and picks back up
  • 1990 140,928 Miles
    When stopping say at a stop sign or signal, the engine will stutter and stop. Starts immediately with no issue, but does stop when coming to a stop in city or off highway makes no difference.
  • 1990 180,200 Miles
    Pull up to stop sign it idoles ruff and then dies.

1990 Common Problems