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Charging issues 1994 940 Regina 900 1994

posted by  someone claiming to be The Iron Chef on  Tue Jul 26 12:12 CST 2011 [RELATED]

Hello all, I haven't had to post for a while.
The charging system in this car is based on the NipponDenso 100 amp alternator. My problem is the battery always discharges and then the car dies. The battery is just 18 months old. I think the battery never gets a full charge from the alternator. The charge voltage is ~13.4 at low speed and high speed. The battery voltage is ~12.4 no load, little change (if any) with load. All connections are clean with no corrosion. The Car has 197,000 miles
I think that the problem lies with the voltage regulator. So, My question is. Does this model Alternator have a replaceable regulator? I can't find one listed on any of my usual internet sources. Otherwise I'll just get a new alternator.

The markings on on the alternator are 3544119 100211-8632

tia
-Keith

[IMG]http://i.imgur.com/3q2P8.jpg[/IMG]






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