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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 Jul 16, 2003 | 02:03 PM
  #1  
82StepEffie's Avatar
82StepEffie
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From: College Park Maryland
Angry Electrical Problem

By battery died a month after the waranty expired, so I replaced it. I noticed the truch with less and less power at startup over the next week untill nothing. Battery was dead. A pushstart later and I was off. I figured it could not be the alternator cause the trusk was running and the batery was dead I pulled the alternator anyway and had it tested. 4 amps of output, so I got a new one. I put it in but the truck still won't start. Any ideas on what to do next? Please
 
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Old Jul 16, 2003 | 07:07 PM
  #2  
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horsepuller
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Electrical Problem

Did you recharge the battery after you replaced the alternator?

If you're sure the battery is charged and the starter won't crank, it is probably either the starter or the starter solenoid. The solenoid is on the passenger side over the fender well. It's near the battery. The positive terminal of the battery is cabled directly to it.

I would start out by first making sure that the 12v cable from the solenoid to the starter is clean and has good contact at the starter. Also make sure the contacts on the battery are clean.

The solenoid is inexpensive and easy to replace.
 
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Old Jul 17, 2003 | 12:27 PM
  #3  
82StepEffie's Avatar
82StepEffie
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From: College Park Maryland
Electrical Problem

Last night I replaced the Voltage Regulator and after a jump I saw that the battery was charcing with my volt meter. At 12.5 volts, I took it for a spin to finish the job. About 20 minuits later, while sitting at a light the engin slowed and stoped. Dead! Batery still showed like 12.5v on the meter. This time with a jump it would turn over, but would not crank. Like it was not gettin g a spark.
I plan to replace the silinoid for good measure and return the batery and altrernator for testing. (Cheaper may not have meant better!)
Me The Effie
 
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Old Jul 17, 2003 | 01:01 PM
  #4  
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Rick_Ford
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From: Huntsville USA
Electrical Problem

If it's turning over, it's probably not the solenoid. The solenoid is simply a relay between the battery and starter. When you hit the ignition switch, it engages the solenoid to route power from the battery to the starter.

When the solenoid goes bad, you generally hear nothing when you hit the ignition switch. Jumping will not get you started.

I know this isn't helping you fix the problem, but maybe you won't go spend money on a solenoid when you don't really need it yet.

Rick
 
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Old Jul 17, 2003 | 10:39 PM
  #5  
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steve83
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From: Memphis, TN
Electrical Problem

Have you tested the coil?
 
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Old Jul 21, 2003 | 10:40 AM
  #6  
82StepEffie's Avatar
82StepEffie
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From: College Park Maryland
Electrical Problem

It turns out that the issue was the wiring harnes between the Alternator and the Batery. These wires plug into the Voltage regulator as well as some other socket and the starter silinoid. I have cut new wire, but there is not a "fusable link" as before. Any idea where I can get a new wiring harness for this?
 
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Old Jul 21, 2003 | 08:04 PM
  #7  
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bremen242
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From: GANS
Electrical Problem

you can buy them at an autoparts store.. fusable links come in guage size like wires.. I can't remember what it is, but 14 or 16 guage runs in my mind
 
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Old Jul 24, 2003 | 08:33 PM
  #8  
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fordnut71
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From: toronto
Electrical Problem

i had the same problem with my 300 . i ended up putting in a gm alt in there ez to install an the truck now runs a lot smother to . u wouldnt know its a gm 1 unless u really have a look for it .
 
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