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Old 07-15-2002, 01:34 PM
HorizonA HorizonA is offline
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Join Date: May 2000
Location: Georgetown, MA
Posts: 84
Go to and do a search on "testing alternator". There is a good check sheet for testing the alternator, battery, etc. If the mileage is not excessive on your 89 300E, I would suspect the regulator which is held in the back of the alternator by two screws. Costs about $40.00. Just did mine. If you need a new alternator go to
John O
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