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Old 07-19-2019, 05:27 AM
DieselFarmer DieselFarmer is offline
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Default Any Ideas??

Hey guys, jumping over from the Perkins Diesel Ranger page, since I got a general Ranger question.
My batteries stop taking a charge from alternator as soon as I turn on my lights. They drop to exactly 12.5 V whenever I hit the switch, and the light will dim if I let the RPMs down or go into Nuetral. I’m thinking maybe voltage regulator, but I’m on my 3rd one and they seem fine. Could an alternator function only partly, or half-ass rather?? I’ve got an 83 Ranger Diesel with a 2.2 Perkins, old style wiring. Thanks


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Old 07-19-2019, 05:56 AM
Ordinary Biker Ordinary Biker is offline
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Default Re: Any Ideas??

Take the alternator off and have it tested before throwing more parts at it. I did have an alternator on my '98 Ranger that when it failed it would only charge in a very narrow RPM range. Unfortunately had to change that one in a blizzard with no garage...
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Old 07-19-2019, 01:08 PM
DieselFarmer DieselFarmer is offline
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Default Re: Any Ideas??

Thanks, I’ll try that. I think my buddy has a tester.


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Old 07-19-2019, 02:10 PM
Ordinary Biker Ordinary Biker is offline
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Default Re: Any Ideas??

I think most auto parts stores still test them for free.
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