Ford Thunderbird Problem Report

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

(4 reports)

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.

I had problems such as: Backfiring at cold start-up, stalling at idle when the engine was hot(when at A light or stop sign-I had to drive with both feet. I had to give it some gas to keep it running while holding down on the brakes.) I also had low performance(Hesitation upon acceleration).Now the backfiring and low performance(hesitation upon acceleration) were fixed with A new Mass Airflow Sensor. But, the stalling was fixed with A new Idle Air Control Valve(Or its also called the Idle Air Bypass Valve). I hope this helps you! -
starts the stall and will not crank at all -
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