Electrical Troubleshoot
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Electrical Troubleshoot
My 89 F250 has had dying batteries. I don't drive it often, but with my daily driver needing a wheel bearing I brought it out of the barn. Charged the batteries, got it started, took the charger to work with me. Good thing I did, multimeter reads 12.3 to 12.5 volts with the engine running, and the same with it shut off.
Today I replaced the alternator. Only one hiccup / stupid tax.....failed to unhook the battery positives before touching the old alternator positive with a socket.
Got some smoke from the wiring harness, the voltage regulator, maybe some from starter solenoid. After saying some choice words to myself, I replaced the voltage regulator and the alternator.
Truck started fine, was reading 12.3 volts before starting, STILL reading 12.3 volts after starting. And now the check battery light is lit up on the dash where it wasn't before??? What gives? Any ideas what to do from here?
Today I replaced the alternator. Only one hiccup / stupid tax.....failed to unhook the battery positives before touching the old alternator positive with a socket.
Got some smoke from the wiring harness, the voltage regulator, maybe some from starter solenoid. After saying some choice words to myself, I replaced the voltage regulator and the alternator.Truck started fine, was reading 12.3 volts before starting, STILL reading 12.3 volts after starting. And now the check battery light is lit up on the dash where it wasn't before??? What gives? Any ideas what to do from here?
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Joined: Dec 2011
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If not, it's not hard to wire the alternator to regulator with new wires and get it working that way... the only thing is you will want to find the check battery light wire(goes to (I) terminal on regulator), or you won't have that light work correctly.
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I think it's the fusible link on the positive to the alternator. I've got battery voltage to the starter solenoid, but from there to the alternator it goes dead.
Anyone know what size fusible link I need to replace? I'm at work and would love to pick one up on the way home instead of pulling it tonight and trying to get to the parts shop before they close.
Anyone know what size fusible link I need to replace? I'm at work and would love to pick one up on the way home instead of pulling it tonight and trying to get to the parts shop before they close.
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