The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
It sounds like the alternator (archive)
[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]
Posted by Dean on October 29, 2000 at 19:29:27:

In Reply to: Re: Did I just install a bad alternator?? posted by a on October 29, 2000 at 19:15:38:

After charging the battery was at 13.5. Started the car, dropped to 12.5 then slowly dropped from there... oh well, out to the garage!

Thanks for all your help on this... Dean

I pulled the old alternator, had it tested, it was bad. Bought a new one, had it tested, it was good. Now the battery still does not hold a charge.

So I followed "a's" advice from the post yesterday, had the battery tested, slow charged it, cleaned and checked all terminals. Seemed to run, start for about 2hrs then, sputter and die.

I think I have just installed a bad alternator! OR am I missing something. Is there anything else I should I try??

If no one has any suggestions, looks like I am headed to the garage to pull the alternator, battery and go have them both tested after work tomorrow.

Any bets on what it is?

Dean

with the engine running at 1500 rpm,13.5-14.5 vdc should be read across the battery terminals. thats what a good charging system should put out. if thats what you read, then the battery is ng




Follow Ups:


[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2009 Jump Internet Inc. All rights reserved.