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could my alternator be bad?

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Old 02-19-2010, 04:44 PM   #1
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could my alternator be bad?

95 4runner 3vze
I would like to know ...could my alternator be going bad even though the charging system test from a local auto parts store says it is putting out.The test results were about 13.7with load if I remember correctly

battery was fully charged 12.4V

I'm asking because lately the darn 4runner has been cutting out on me when turning sometimes while driving....and sitting still at idle I can turn the steering wheel and some times the engine will cut off but will restart (I think maybe the alt is going bad or a bad ps idle up switch, but not likely on the switch I;m not sure)

I was told by a co worker engineer that even though the alternator shows up fine in the test they did, the alternator still could have a intermittent problem with the diodes, that could cause the engine to cut off some times as i described

I can run my own test tomorrow with my DMM....any suggestions will be appreciated
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Old 02-19-2010, 05:08 PM   #2
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You may want to check the wiring around the steering column.
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Old 02-20-2010, 03:59 AM   #3
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Quote:
Originally Posted by abecedarian View Post
You may want to check the wiring around the steering column.
thanks Abe I'll do that today
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Old 02-20-2010, 06:34 AM   #4
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At 12.4v your battery is not fully charged. More like 40%. I would swap out for a known good battery and see what happens
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Old 02-20-2010, 08:00 AM   #5
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On my 22re there is an air bypass switch- when running up against the steering stop it will increase idle.
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Old 02-20-2010, 10:12 AM   #6
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thanks for the input.....I'll check the ps idle up switch...I did replace the alternator today and I'm going to see what happens.I know that right now when I turn on my blinker the amp gauge on the dash doesn't move much now( before the alt change, the amp gauge would move with the blinker quite a bit)
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4runner, 95, alternatnor, alternator, amperage, bad, cut, dash, engine, gage, good, intermittent, out, test, times

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