Our 1985 MR2 keeps burning up altenators and has a current draw of between .6 and 1.4 volts, any ideas?


Asked by May 24, 2009 at 11:28 PM about the 1985 Toyota MR2

Question type: Maintenance & Repair

2 Answers


Couple things come to mind First your looking for resistance not draw ... look for any bad cabling between the battery and the alternator Next after looking at yer wonderful BLUE interior :) are you running any amplifier setup for that radio ?? If so you may need a capacitor as the amp may be drawing too much from the alternator on heavy THUMPS. OR the remanufactured units you are getting are junk ... try a Factory reman ( I know $$ )


what you need to do is take you positive cable of and use a digital multi meter and put it to mA(milli amps) and watch your draw then start pulling fuses. when your draw drops that's the circuit the draw is being caused by. then find out whats on that circuit and test whats on the circuit. good luck if you need any more help just add me as a friend.

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