Ford F-150 The entry level full size truck from Ford, one of America's best selling for decades.

1987 F150 300ci Electrical Problem

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  #1  
Old 03-16-2009 | 12:02 PM
billy67's Avatar
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Default 1987 F150 300ci Electrical Problem

WHen the truck ignition is in the run position I'm getting 4.5 volts to the start wire of the solenoid. I can unplug the solenoid and jump the solenoid out and it will start and run fine. When I plug the S wire in, the engine shuts down. Leave the S wire unplugged and take the truck out of park and it shuts down. It has Distributor mounted module. HELP!!!!! Haynes wiring schematic not extremely helpfull.
 

Last edited by billy67; 03-16-2009 at 09:04 PM.
  #2  
Old 03-18-2009 | 06:13 PM
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Check your column wiring for a one wire shorting out to another.
 
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