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Charging issue? Belt tensioner, perhaps?

3208 Views 15 Replies 7 Participants Last post by  Steve83
I'm unable to drive faster than 60, without the battery light coming on.

Battery voltage: 12.4 / 12.5 - Passenger / Driver side.

Not yet tested the output of the alternator.

Seems odd the alternator would/could function properly unless I race the engine, or run +/- 1900 RPM (about 60 mph), triggering the battery light to come on, as well as the voltage gauge to drop very low.

I suspect the belt tensioner is calling it quits.

Am I on the right track?
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While you have the alternator off check or spin all of your pulleys. I usually loosen my belt once a year just to spin and check for play in my pulley's just trying to catch a bad pulley before it leaves me on the side of the road. I have had to replace the pigtail going to my Alt. because it was making intermitten contact and it was making my battery light come on. themue67
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