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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Electrical problem?

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Old Mar 13, 2020 | 03:19 PM
  #1  
Edward Reyes Nunez's Avatar
Edward Reyes Nunez
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Electrical problem?

Good afternoon, posting on behalf of my dad since he's not that tech savvy or proficient in English.
Vehicle specs:
1986 Ford F-150
Engine: 5.0L 302 V8 w/an auto transmission (I believe it's a C5)
4x2
Dual-tank
Problem: My dad cannot get the truck to turnover. It used to turnover and start. Now we cannot get to turnover even with a jump. Battery is good, new alternator, new spark wires and plugs. New fuel pumps. He did mention that there was a wire that was hot when it used to run. Maybe a ground issue? He would appreciate any help or guidance.

Ps. Also looking for the fuel tank switch. LMC truck has one but with a different amount of pins.
 
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Old Mar 13, 2020 | 04:22 PM
  #2  
seville009's Avatar
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I’d look to the starter being the problem

maybe give it a few taps and see what happens

 
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Old Mar 13, 2020 | 04:36 PM
  #3  
matthewq4b's Avatar
matthewq4b
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From: St Albert, Alberta
Originally Posted by Edward Reyes Nunez
Good afternoon, posting on behalf of my dad since he's not that tech savvy or proficient in English.
Vehicle specs:
1986 Ford F-150
Engine: 5.0L 302 V8 w/an auto transmission (I believe it's a C5)
4x2
Dual-tank
Problem: My dad cannot get the truck to turnover. It used to turnover and start. Now we cannot get to turnover even with a jump. Battery is good, new alternator, new spark wires and plugs. New fuel pumps. He did mention that there was a wire that was hot when it used to run. Maybe a ground issue? He would appreciate any help or guidance.

Ps. Also looking for the fuel tank switch. LMC truck has one but with a different amount of pins.

If the battery cable connections are sound (check those first) and there is no noise at all when you turn the key to start likely the starter relay has gone south. If you are getting a click or clunk when you turn the key likely the starter has gone south.

Do check the bat cables and get back to us if it is making any noise when turned to start..

 
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Old Mar 13, 2020 | 05:33 PM
  #4  
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What happens when you take a small wire and jump the little terminal in the picture below, to the large terminal that goes to the battery? MAKE SURE THE TRUCK IS IN PARK BEFORE YOU TRY THIS.

 
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