1970 Ford Mustang Alternator

Tiny
POPO1970
  • MEMBER
  • 1970 FORD MUSTANG
Electrical problem
1970 Ford Mustang V8 Two Wheel Drive Automatic

What is the easy way to check or test an alternator?
Wednesday, August 26th, 2009 AT 5:06 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
Hi there,

The best way to check the alternator on the car is to first make sure that the battery is in good condition with a load test, ensure that the terminals are clean & tight, if that is all ok, start the engine and with a Volt meter check the alternator out put voltage at the main alternator terminal, you will want around 13.5 volts this should not rise above say 14 V with the revs stepped up, if this is out of range have the alternator inspected by an auto electrician.

Mark (mhpautos)
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Wednesday, August 26th, 2009 AT 5:49 PM

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