Loud squealing noise on startup!? wtf??
07-21-2007, 09:29 PM
#1
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Loud squealing noise on startup!? wtf?? I went to go look at a LS1 that has been sitting for a while and the battery was dead. It only has 29xxx miles on it and looked well cared for. He used some jumpers and I started her up. I immediately herd a loud squealing noise, then after a min or two it went away. On my test drive it was not present. I never herd a noise like this so im wondering what it could have been. It sounded like nails on a chalk board kinda squealing. very loud and nasty!
07-23-2007, 07:12 PM
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It's doing that because at low RPMs you have a huge draw from the alternator (due to the bad battery) so it takes a lot of torque to turn it. Replace or charge the battery and I'll bet you your squeak goes away.
