A cheap voltmeter could be your best friend here. Harbor freight has a cheap digital for about 4 bucks. Anyway, the battery voltage with the engine off, key off, should be somewhere around 12 to 13 volts. When it's running it should be 13.5 to 14.5, or maybe a little higher. And measure it at the battery posts, inside the cable clamps. Corrosion between the clamp and post could prevent charging. And a healthy voltage may be present at the clamp but not at the battery post. So measure it at the post. If the running voltage is at least a volt above the engine-off voltage, then you probably have a bad battery. Otherwise suspect the alternator or wiring.
Bogy.
--- On Sun, 3/18/12, Kevlog6 <kevlog6@yahoo.com> wrote:
> I had a few things replaced on my 84
> 300d and it was firing up just fine. i replaced the
> battery last fall. yesterday i took it out for a ride,
> fired right up and drove it 10 miles, parked it for about 4
> hours and came back out and it was dead. i jumped it
> and drive it back 10 miles. turned it off and no power
> at all, not even any lights coming on. today i did the
> same, jumped it and let it run for about 45 mins.
> turned it off and nothing. any suggestions?
>
> what surprised me is that the battery was so dead in 4 hours
> when it had sit for weeks at a time and always started.
>
> could it be the alternator voltage regulator?
>
> thanks for any suggestions
>
No comments:
Post a Comment