How to test alternator output? - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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How to test alternator output?
Posted by Quentin (more from Quentin) on Sun, 6 Apr 2008 16:29:46
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Hi,
Had my 2002 9-3SE for a couple of months. Ever since I got it, the engine would crank over quite lethargically when starting (which struck me as odd). However it would almost immediately fire up and even at -20 deg. C it always started.
Today I was putting the summer rims on and was using a plug in 12v air compressor to add air to the tires (one tire was very low and hence needed ~2min of pumping). Anyhow, I surprised myself by totally draining the battery (which looks new).
The lazy cranking could be a dodgy starter motor - is there a way to test it in-car? Anyone know how I can determine if the alternator is okay?
Any suggestions appreciated!
posted by 99.232.103...
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