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Discussion Starter #1
My 83 300cd is killing batteries. Just put in a new alternator a couple months ago- the old one seized up. Not sure if its being drained, or just not charging. I haven't looked but i'm assuming theres a voltage regulator between the alternator and battery. How would you guys test that? Can you turn the car on and then probe with a continuity tester? Don't want to fry something.
 
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