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Old 03-11-2013, 10:52 AM
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Replaced dead battery... now nothing!

I've worked on cars for over 50 years... but never had this happen!

Mid seventies Econoline truck chassis with 460.

I left the headlights on, and killed the battery. It was several years old, so I just replaced it. Now I get nothing at all. Guages don't come on... engine doesn't spin... lights won't turn on...

YES! The battery is fully charged, and hooked up properly.

Maybe a relay or something? What would a dead battery cause?

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Old 03-11-2013, 11:17 AM
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the starter may have fried .
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Old 03-11-2013, 12:23 PM
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nut'n

how about the main fuse-able link.. need less to say something poped if u have no power anywhere.. ya i know this mostly didn't help, but u gotta start somewhere...
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Old 03-11-2013, 12:30 PM
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That's a better answer than I had!

Actually I have had a couple others suggest this... so you all may be right.

Thanks. :-)
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Old 03-11-2013, 02:26 PM
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Jay - besides that fusible link, '70's Fords charging systems use that fender well mounted solenoid/relay to put the power to the rest of the vehicle. You can do a real quick check with a jumper and jumping around the 2 big terminals then with a screwdriver (throwaway) hit the back terminal and the rear most small post. The starter should kick in. Only do this momentarily. Out of three 460 powered '70s Fords, never failed a fusible link in several hundred thousand miles, but solenoids/relays - yes.

The attached are 'left over' from my '79 F350 SC
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Old 03-11-2013, 04:45 PM
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X2 on the starter relay for not starting, but that doesn't answer why the lights don't come on........ I'd take a pair jumper cables, hook one on the neg post of the battery and find a good clean bolt on the engine, that will eminate a ground ploblem. Check your lights etc.....

Use a jumper to jump the small terminal to the battery side lg stud on the starter relay, if it spins, the relays good.

Next i'd take the pos jumper cable, hook to the pos post on the battery and touch it to the starter side of starter relay, starter should spin. Then hook it to the battery side stud and jump the small terminal as outlined above. starter should spin, if it does, then find where the main battery cable hooks into the electrical system, hook the pos jumper cable to there and see if everything works etc......it it works when it's connected there it's prob a fusable link etc....
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Old 03-11-2013, 08:49 PM
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PROBLEM SOLVED! :-)

A bad battery cable was the culprit!

Thanks to everyone for the feedback. We were able to eliminate some of the problems, and then found this was the one!
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Old 03-12-2013, 03:42 AM
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Good to hear it was an easy fix.
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Old 03-12-2013, 10:37 AM
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Thanks for posting the culprit/fix!
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