Serpentine belt was shredding and smoke was coming from under the hood. changed the serpintine belt and it si still smioking
Serpentine belts have an idler pulley and an automatic belt tensioner - either one of these could have gone bad and could cause the smoke. The idler pulley has a bearing inside that can seize, stopping the pulley from turning which would cause the belt to fray. The tensioner keeps the belt tight and when they go, the belt hangs loose, causing the belt to burn on the other components. The Alternator also runs on that belt, as well as the a/c compressor and other components, depending on the particulars of your car ( make, model, engine, accessories, etc.) and the main bearings can be bad there too. There are actually several key components running off the belt and, without being there, I cannot accurately diagnose the issue. I recommend you go to a reputable shop. The type of smell in the burning would guide me to what to check - there are many things that can cause these symptoms. If that mechanic only changed the belt but did not investigate the cause I personally would not go back there.
I'm sorry i couldn't offer anything more concrete to help - hopefully I've given you some directions to look!
Hope this helps!!
Dec 02, 2013 |
2003 Cadillac CTS