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Old 08-12-2011, 05:49 PM   #6
Burt4x4
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Join Date: Feb 2000
Location: Modesto, CA
Posts: 1,842
Re: Solenoid on 72 Blazer

I have the Ford remote silly too but mine is wired differnt than PD1292^^
My Chevy silly has a jumper wire going from the 12V batt cable to the S termanal so when the Ford silly trips and makes the batt cable live with 12v the jumper trips the silly alowing the starter to turn.

The reason I did this is to prevent HOT start issues, starter not cranking over when engine bay is hella hot, like wheeling during 100+deg summer or headers too close to the starter.

The idea is NO 12v to the starter until needed. Having a completely "dead" batt cable at the starter is the trick as no resestance can build up on a dead cable.

Heat creates resistance...too much heat on a "live" cable alows for the resistance to get higher and higher = amprage goes lower and lower..then you turn the key wich triggers the silly but not enough "power/current" or amps are present to turn the starter because the live cable's resistance is too high and your current is now low low low.

Keeping the 12V away from the hot starter cable means no build up of resistance cuz the cable is "dead", electrons are "sleeping". When you turn the key (purple wire) the Ford silly trips lets 12V thru and down to the starter via batt cable, freash 12v with all it's power. Vaaaroooom every time!

Happy Friday!!
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