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Reply to "Idle question"

...If I were to guess...it would be...

The Spark plug ARC is the 'Heartbeat' of the Engine.

It sounds to me that The Ignition voltage may be coming off the Fan Circuit (or visa-versa). That would mean, the Fans are 'Robbing' Voltage from the Ignition Circuit, Reducing spark efficiency.  Or the Battery is low and the Alternator is failing.

Does the Idle reduce/change when the Headlights are turned On and with High-Beams'??

Use a Multimeter and check the Voltage AT the COIL, with the Fans ON and OFF. Engine Running and then, Not Running. You will Learn a Lot!!

Good Luck with it! Let Us know What You Find.

MJ

P.S. There is one more Question...Is the Idle Position set with a '12 Volt Solenoid'?

Last edited by marlinjack
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