Quote:
Originally Posted by funola
When the key is in the on position, is the battery light lit? If not, replace the bulb! It provides excitation to the alternator.
Maybe you have contact problems. Take the voltage regulator out and check brush length. If the brushes are on the short side, pull on it to stretch the spring. Better yet, replace it! If the brushes are good, use brake clean and a tooth brush and clean the gunk that is all over the regulator and reinstall. Also remove the connector on the alternator and scrape clean the terminals with a small flat bladed screw driver.
To check the battery, put a charger on it till fully charged and bring it to Autozone/ Advance for a load test.
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battery light always lights up when I am glowing...then it goes away when its running...then it blinks as I turn off the car.
I checked the regulator...the brushes are worn in the direction the alt spins but they still have a great deal of of length left on them. I'll clean the terminals.
I'm also going to be on the lookout for a higher amp alternator at the junk yard. this whole 65amp game is for the birds. With a battery the size of my tool box and enough torque to make mid size trucks jealous...I'm just saying.
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77' 300D, "Cartman" SOLD @ 150K (didn't know what I had) 
83' 300SD, "The Superdon" 325k+ @ 28mpg
95 E320 wagon, "Millennium Falcon" 231k+ @ 24 Mpg
95 E300D, "Sherley" 308k @ 33.69 Mpg, currently anticipating a head 
99 Suzuki Intruder "Trudy" @ 45 mpg
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