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Old 05-10-2005, 07:32 AM   #5
jeffcoslacker
Lactose the Intolerant
 
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Re: 91 Euro Alternator issues

They do run hot, 100 amps in a very compact unit, that was part of the reason for longevity problems with the original units. The reman unit usually have larger bearings to help cope. How long does it take to get that hot? Any whine or whirring from it? Is the harness going to it getting abnormally hot? Sometimes a reman will have a bad regulator, and it sticks full output until it burns itself out. Some will run hot at first until "broken in" for lack of a better description, but calm down after they've been run a while. Keep an eye on it.

Make sure your harness doesn't have any cooked wires, seen posts where a couple of people had real bad problems with charging and whacky idle/performance problems after an alternator change, and find a reference wire to the ECM that was burnt, causing multiple problems.
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