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a_springfield 02-18-2013 08:24 AM

new opda still chirping
I put in a new dorman opda last week old one was not to bad but still chewed a little. Every thing was good but last night it started making a chirp again. It was only above 1500 rpm and only when driving (sitting at a red light I was reving but could not get it to make the sound. It stopped after a few min driving. I did notice that the idler pully appearsto have rubber burnt on itbut feels fine qwhen spinning it, could that cause a chirping

JustinCHorst 02-18-2013 08:56 AM

Yes, I doubt its the new opda.

Patrick H 02-18-2013 09:21 AM

Pull the serpentine belt, and spin the idler and tensioner pullies by hand. You might be surprised at what you hear and feel.

a_springfield 02-18-2013 10:50 AM

Would that go away after a few minutes of driving or stay constant

Patrick H 02-18-2013 11:01 AM


Originally Posted by a_springfield (Post 3384720)
Would that go away after a few minutes of driving or stay constant

Belt/ pulley noise? It can definitely change with temperature. I had a very subtle "belt noise" when cold, so I pulled the belt, and was surprised at how rough and noisy my idler and tensioner pully bearings were. I replace these all the time on customers' vehicles, but they're usually very noisy by the time they bring the vehicle in.

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