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Alternator Volts - 300SEL
How many volts does an alternator put out. My 300SEL, 1988 alternator outputs between 1 - 2 volts, the car starts very well with 13plus volts, but when voltage is 12 and below the car won't start. You crank and wipers come on. How does the iginition coil factor in this case? If this coil is bad will the car fail to start or start randomly.
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#2
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Need more info. to help you. Check for louse connections on battery. 2) Age of it. 3) Do a volt drop test. 4) 12.6 v, normal. 13.5v, charging normal. 5) Connect a multimeter on battery have someone start the car while you are looking at the meter under 10.5 car will not start. 6) Crank, wipers come on, there is a short somewhere. Or volts are to low driving the modules crazy. Regards, aam. |
#3
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#4
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You are going to be a very sorry man or woman. You will fry expensive modules and the icing on the cake is, you are going to fry your gauge cluster. Go a head make my day. |
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alternater testing
To all that read my post........Take AMM's advise and "DO not disconnect the battery while running"!!!!! I usually use a volt meter for electrical and charging diagnostics but I have used the positive battery cable disconect on both older and newer computer cars without damaging things. But I repeat!!!! If AMM says it will damage your car, PLEASE DONT DO IT !!!!!! I would never want you "To make my day" by damaging your car with info I gave you! Sorry for bad advise.
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