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Home >> Mercury >> 1995 >> Cougar 3.8 4, _NA_ >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Basic Testing - 3.8L >> Idle Speed & Ignition Timing >> Idle Speed

Idle Speed

Engine idle RPM is controlled by Idle Speed Control (ISC) solenoid and cannot be changed by standard adjustments. For further information, see the ADJUSTMENTS - 3.8L article in the ENGINE PERFORMANCE section.

IDLE SPEED SPECIFICATIONS

Model RPM
3.8L 750