Question about 1994 Toyota Supra

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Alternator charging problem

On a 1994 Toyota Supra Turbo Mt has a new battry the alternator has been checked out and is good but will not charge and when driving the battery drains cuasing elecctrical falure to systems. When placing a volt meter on the battery not running it shows 12+ volts but drops to 10 + when the engine is started.

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  • crgivens Jan 18, 2009

    The alternator was putting out 15+ volts on a bench tester at two different parts suppliers.

  • crgivens Jan 18, 2009

    The alternator was putting out 15+ volts on a bench tester at two different parts suppliers.

  • crgivens Jan 18, 2009

    Three wires on the plug in terminal pluss the main hot wire

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  • 196 Answers

Well if the alternator is not putting out at least 13 volts when it running most likly its bad i would take it some place and have it checked again

Posted on Jan 18, 2009

  • work4it1 Jan 18, 2009

    How many wires go into the alternator ? other than teh lager one that charges the battery ?

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