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Problem Reports » Problem With Idle Air Bypass Valve May Cause Engine Performance Problems

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Mercury Tracer

Report: Problem With Idle Air Bypass Valve May Cause Engine Performance Problems

Mercury Tracer Problem

3 Reports

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Model Years Affected: 1991, 1997

Engine Affected: 2.0L 4 Cylinder

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.

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