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tucsonjwt · 09-22-2011, 03:51 PM

From Novaresource.com and the "heated"

discussion on remote solenoids - an explanation of the "two solenoid" band aid fix:

While starter heat shields help the problem, they don't solve it. The best solution to the problem is to relocate the starter solenoid to some other location under the hood, away from the heat of your exhaust system. You obviously can't move the stock solenoid from a GM starter but you can use a separate, remote solenoid like on a Ford, to control the GM solenoid. Here's how and why it works: On the GM solenoid, the winding is fed through a resistive lead to the starter from the switch key, which results in less than the 12 volts being applied across the solenoid winding. As the current in the lead increase so does the voltage drop on the lead going to the GM solenoid winding, resulting in less voltage at the solenoid winding, giving less than satisfactory operation. So, the bottom line is, when the unit gets hot, it draws more current in the lead from the switch to the solenoid winding resulting in less voltage across the solenoid activation coil. So the solenoid does not close the contact to the starter motor nor does it engage the pinion gear. The Ford solenoid, when installed, solves this problem by applying the full battery voltage across the GM solenoid activation winding, resulting in positive operation of the solenoid, pinion gear and rotation of the starter motor.

Just more misinformation.

09-22-2011, 03:51 PM	#17
tucsonjwt Registered User Join Date: Jul 2007 Location: Tucson, AZ Posts: 3,198	Re: battery cable ? From Novaresource.com and the "heated" discussion on remote solenoids - an explanation of the "two solenoid" band aid fix: While starter heat shields help the problem, they don't solve it. The best solution to the problem is to relocate the starter solenoid to some other location under the hood, away from the heat of your exhaust system. You obviously can't move the stock solenoid from a GM starter but you can use a separate, remote solenoid like on a Ford, to control the GM solenoid. Here's how and why it works: On the GM solenoid, the winding is fed through a resistive lead to the starter from the switch key, which results in less than the 12 volts being applied across the solenoid winding. As the current in the lead increase so does the voltage drop on the lead going to the GM solenoid winding, resulting in less voltage at the solenoid winding, giving less than satisfactory operation. So, the bottom line is, when the unit gets hot, it draws more current in the lead from the switch to the solenoid winding resulting in less voltage across the solenoid activation coil. So the solenoid does not close the contact to the starter motor nor does it engage the pinion gear. The Ford solenoid, when installed, solves this problem by applying the full battery voltage across the GM solenoid activation winding, resulting in positive operation of the solenoid, pinion gear and rotation of the starter motor. Just more misinformation.