Whirring noise from engine area - increases with acceleration
2006 GMC Envoy, approx 60,000 km. I have a whirring noise that increases with acceleration. Makes it sound like an electric vehicle. Noise is present even when parked and idling. Performance still seems fine. Anyone have an idea?
Re: whirring noise from engine area - increases with...
Mine doing this now... It's the pulley under the alternator. I don't know if it's the water pump or not.
I removed the belt to find out. I'm certain of where it's coming from. It's a common problen I've heard on many Envoys and Trailblazers. Still researching now...
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The belt tensioner on right side of engine, if you are facing vehicle, just below the altenator, is probably the problem. Mine made the noise all the time, bought part at Autozone, 18.99, its fixed, no noise.
If the noise increases when idling and reving up the engine then you must check on the engine pulley, the belt idler pulley, the water pump , alternator or the a/c. But if the noise increases when you are moving then you must check on the wheel bearings, the drive shafts and the inspection of the mudguards for tyre rubbing. If so you will have to jack up the car and check for faulty bearings, drives or tyres. SInce the noise can be traced to the point of generation , you will have to have a friend also to check on one side for pinpointing the sound and identifying the part. This must be easier to find and you can easily replace/repair/change the part concerned. Hope you try. Good day