Problem With Idle Air Bypass Valve May Cause Engine Performance Problems on Ford Thunderbird
Problem overview
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.
24 people reported this problem
5 commentsFord Thunderbird vehicles with this problem
Average mileage: 127,689 miles
(137 - 200,000)
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