How the Ford starter solenoid fixes the problem : - Saab 9000 Bulletin Board - Saabnet.com
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How the Ford starter solenoid fixes the problem :
Posted by Daren (more from Daren) on Fri, 22 Jun 2001 13:56:47
In Reply to: I waited 1 hour, turned the key and it starts right up?......, rob
[Profile/Gallery]
, Fri, 22 Jun 2001 11:14:09
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A Ford solenoid, applies the full battery voltage to the Bosch solenoid winding, which means in a positive operation of the Bosch solenoid. On the saab solenoid by itself the winding is fed through a resistive lead to the starter from the key switch, 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 Bosch solenoid winding, resulting in less voltage at the solenoid winding, results = Strater wont work. So, the botton 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 Ford solenoid fixes this problem by applying the full battery voltage across the saab solenoid activation winding, resulting in proper operation of the solenoid, pinion gear and rotation of the starter motor.
Posts in this Thread:
- 1994 9000CDE WONT START, Rob
, Fri, 22 Jun 2001 10:43:01- Re: 1994 9000CDE WONT START, Vassilios, Sat, 23 Jun 2001 00:09:37
- Have same problem, changed ignition switch, then battery to no, Daren, Fri, 22 Jun 2001 11:20:08
- Re: You are either getting ready to replace the ignition switch, aero guy, Fri, 22 Jun 2001 11:08:25
- SOMEONE HELP PLEASE!, Rob
, Fri, 22 Jun 2001 11:05:13
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