Charging problem is driving me nuts

phoelsch · Post by **phoelsch** » Tue Jul 04, 2006 7:54 am

My 70 f100 has a charging issue that is killing me. The new altenator that I put on is only reading 10 volts while in my truck. Bench tested at the parts store and it's getting 14 volts. Replaced voltage regulator and I'm still getting 10 volts. I checked and cleaned all of my connections. Replaced the motor to body ground. Not sure what and the heck is going on. Could I have gotten a bad voltage regulator?

Mohillbilly · Post by **Mohillbilly** » Tue Jul 04, 2006 8:24 am

That's possible, or you might have the alternator checked again, in case it blew a rectifier inside. A good local alternator repair shop can test the alt/reg together under load.

Leadfoot · Post by **Leadfoot** » Thu Jul 06, 2006 2:32 am

likely its something to do with the old crusty field wire or the voltage reg.(like a grounding problem)

bluef250 · Post by **bluef250** » Thu Jul 06, 2006 7:27 am

Check alternator belt for slipping. Clean and check ground, including the battery. Check for a bad battery. Why did you install a new alternator?

rjewkes · Post by **rjewkes** » Fri Jul 07, 2006 3:07 am

got the noise reducer? it looks like a longer condensor.

phoelsch · Post by **phoelsch** » Sat Jul 08, 2006 7:18 am

I've narrowed it down to an wiring issue under the dash. I have checked every wire, component and ground under the hood for continuity and every thing has checked out fine. Few busted wires but I tended to them. Altenator is still bench testing at 14 volts. I replaced the altenator as my first shot gun approach to solving the issue. Original alt was probably still good.

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Charging problem is driving me nuts

Charging problem is driving me nuts

re: Charging problem is driving me nuts

re: Charging problem is driving me nuts