Battery, Starter, Charging ???

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Jan 11, 2004 | 07:30 PM

slntnddly

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any suggestions would be nice.....out of ideas

Just recently fixed a burned out fusible link to restore power to my truck. when everything was back in order, i tried to start the truck. it started turning over with no luck starting, so i tried again and it tried to start. the next time i turned the switch, it started turning over and then started slowing down like the battery was getting drained. i checked the water level and it was fine, and the battery had full voltage. i let the truck sit for a few minutes and then went back to try again. same thing....slowed down after a few turns. could this have anything to do with old oil not lubricating the valves well enough? any suggestions are welcomed. ive been fighting with the truck for 3 mos now

and im ready to get it on the road

Jan 11, 2004 | 08:24 PM

Greg 79 f150

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Joined: Feb 2003

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From: Kentucky

Standing voltage on a good battery fully charged, should be between 13 to 14 volts. Not knowing the age of your battery ( dont expect over 5 years from any of them) you could have a dead cell, not letting the battery hold the cranking amps to keep you cranking. You can have decent standing voltage , but that doesnt guarantee cranking amps. With a known good battery try it again, if she spins good , then you have other problems, am not much of a mechanic, so maybe someone else here will help you out, good luck

Jan 11, 2004 | 11:48 PM

Racerdave

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Joined: Oct 2002

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From: Seattle/Tacoma Washington U.S.A.

Check your VR (Voltage Regulator) They are cheap and east to replace. And after that I would buy a DieHard with a 2 yr warrnty. Good Luck, oh also a VM(volt Meter) is a good investment.

Jan 12, 2004 | 08:18 PM

slntnddly

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the battery is brand new....only been in the truck a couple months

EDIT: also need to know what the "field" wire is for on the alternator. someone before me rigged a new wire that looks too small on it and just stuck it into the VR connector

Jan 12, 2004 | 09:21 PM

Mike W

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From: Central Kali

The field connection is the output of the regulator. Voltage on it is what makes the alternator start charging. It only draws a couple of amps so you don't need large wire for it.