Poor Idle, Engine Stalls, Hesitates on Acceleration on Mercury Topaz

Sludge build up in the throttle body can cause a poor engine idle, stalling, and/or hesitation. The correction is to install a new idle air control valve spacer kit to prevent the sludge build up, set the base idle, and clean the throttle body.

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Average mileage: (–)
5 model years affected: 1990, 1991, 1992, 1993, more1994
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