How do you test an alternator?

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Re: How do you test an alternator? #142600 10/28/08 03:51 PM 10/28/08 03:51 PM
Joined: Nov 2007 Posts: 21,844 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,844 Kirkland, Washington	Quote: Quote: Quote: take the hot wire off the batt while it is running....if it shuts off the alt is bad Don't do this, not only is it an unreliable test of an alternator, it can damage other components when the battery is removed from the system. The battery serves as a cushion to protect against spikes. i disagree. its not the best test but it would work. and these cars are pretty stout when it comes to electronics susceptable to voltage spikes. If youre really concerned, then dont reconnect the battery if the car stays running with the ignition on. have someone turn off the ignition before reconnecting it. then there will be no spike so no possible damage but a voltmeter would be best. check battery voltage at the alt outpput with the car off and then with it running. voltage should be a few volts higher with the car running So if you disco the battery from a running car and the car dies you figure you just reliably determined that the alternator is bad? Really?

Entire Thread
Subject	Posted By	Posted
How do you test an alternator?	Stationwagonguy	10/28/08 06:42 PM
Re: How do you test an alternator?	scratchnfotraction	10/28/08 06:50 PM
Re: How do you test an alternator?	Pacnorthcuda	10/28/08 06:54 PM
Re: How do you test an alternator?	Fury Fan	10/28/08 07:38 PM
Re: How do you test an alternator?	Anonymous	10/28/08 07:43 PM
Re: How do you test an alternator?	Pacnorthcuda	10/28/08 07:51 PM
Re: How do you test an alternator?	scratchnfotraction	10/28/08 08:09 PM
Re: How do you test an alternator?	Anonymous	10/28/08 08:22 PM
Re: How do you test an alternator?	Stationwagonguy	10/28/08 09:12 PM
Re: How do you test an alternator?	Pacnorthcuda	10/28/08 09:53 PM
Re: How do you test an alternator?	Anonymous	10/29/08 12:43 AM
Re: How do you test an alternator?	RodStRace	10/29/08 01:01 AM
Re: How do you test an alternator?	denfireguy	10/29/08 01:28 PM
Re: How do you test an alternator?	5537SG	10/29/08 02:49 AM
Re: How do you test an alternator?	ahy	10/29/08 03:35 AM
Re: How do you test an alternator?	Fastback67	10/29/08 01:50 PM
Re: How do you test an alternator?	Anonymous	10/29/08 02:14 PM
Re: How do you test an alternator?	5537SG	10/29/08 02:32 PM
Re: How do you test an alternator?	Dcuda69	10/29/08 03:42 AM
Re: How do you test an alternator?	scratchnfotraction	10/29/08 12:33 PM
Re: How do you test an alternator?	stumpy	10/29/08 01:01 PM
Re: How do you test an alternator?	5537SG	10/29/08 01:45 PM
Re: How do you test an alternator?	therocks	10/29/08 03:14 PM
Re: How do you test an alternator?	stumpy	10/29/08 11:38 PM
Re: How do you test an alternator?	5537SG	10/30/08 01:55 PM
Re: How do you test an alternator?	scratchnfotraction	10/30/08 02:23 PM
Re: How do you test an alternator?	5537SG	10/30/08 02:44 PM
Re: How do you test an alternator?	Anonymous	10/30/08 04:01 PM
Re: How do you test an alternator?	stumpy	10/30/08 02:25 PM
Re: How do you test an alternator?	5537SG	10/30/08 02:49 PM
Re: How do you test an alternator?	stumpy	10/30/08 03:22 PM
Re: How do you test an alternator?	HealthServices	10/30/08 04:28 PM
Re: How do you test an alternator?	Scott Carl	10/30/08 04:33 PM
Re: How do you test an alternator?	Anonymous	10/30/08 05:05 PM
Re: How do you test an alternator?	Scott Carl	10/30/08 05:29 PM
Re: How do you test an alternator?	scratchnfotraction	10/30/08 06:46 PM
Re: How do you test an alternator?	Scott Carl	10/30/08 06:58 PM
Re: How do you test an alternator?	Anonymous	10/30/08 07:04 PM
Re: How do you test an alternator?	Scott Carl	10/30/08 07:24 PM
Re: How do you test an alternator?	scratchnfotraction	10/30/08 07:39 PM
Re: How do you test an alternator?	CYACOP	10/30/08 08:24 PM

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