alternator whine
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Senior User
Joined: Mar 2001
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From: cincinnati hamilton
alternator whine
anybody else had this happen. i replaced my alternator last jan. this week it started whining (more than me) . i drove to autozone, they tested it, was ok, just noisey. yesterday i took it off and got a replacement fr om autozone (lifetime warrenty) they bench tested it and said the shaft was bent..? they asked me if i had been in an accident with the van, or droped it on install. ??which i had not. it had worked flawlessly for a year, in fact it was working when i removed it. but i had never heard of the shaft being bent. what could cause that? tight serpintine belt? drag in the system (other pulleys going bad?).......any thoughts? 
rick 
rick
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Senior User
Joined: Mar 2001
Posts: 403
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From: cincinnati hamilton
new one is doing great! new belt went on easier? wonder if they sold me the wrong size last year. i had a heck of a time getting it on last year...go figure. thanks guys rick
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Joined: Sep 2003
Posts: 4,452
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From: Southern California
Sometimes new replacement non-OEM parts come with a slightly bigger pulley. Happened to me when my A/C compressor broke down. The replacement from Factory Air has a bigger pulley, so I ended up buying the same kind of belt (K-6 I believe) but an inch longer. For the last 7 years, every time I changed the belt, I had to remember that.
