whining noise from engine compartment?

Question

it increses with engine speed. it is a 1994 camaro z28

Answer 1

There are several possibilities that can cause a whining noise that increases with engine speed. Anything that is driven by an accessory belt can whine, also if you have an automatic transmission, the torque converter can whine (either defective or low on fluid). The best way to tell what is making the noise is to use a mechanic's stethoscope, and listen to all the various components (Alternator, P/S Pump, A/C Compressor, Smog Pump, Water Pump, etc.) while the engine is idling to see which one is making the noise. You'll be able to tell quite easily when you hit the defective component, as it'll about take your ear drums out! JUST BE CAREFUL AROUND THE BELTS WITH THE ENGINE RUNNING!!! Good Luck, HTH!!

Answer 2

This sounds like the main belt bearing. I don't own a Chevy, but in a Ford with one belt running everything, my main bearing was going out in my Explorer. It's not expensive, go to AutoZone or another auto place. The bearing should be under $30

Answer 3

Could be a alternator problem, a bearing problem or broken fan even, what ever it is it is something that is turning with the fan belt proberly if it speeds up and down with you engine, need more specifics from you!

Answer 4

sounds like either: altenator, power steering pump, clutch fan, air pump, water pump, air conditioner. Could be anything, first remove the belt/s and turn the pulley's which the belts were connceted by hand. You may hear something. Hopefully you'll find it and just replace the coressponding part. good luck

Answer 5

The rats are finally getting pissed when you speed up, it's been 12 years and you haven't fed them once. You expect them to keep up performance without food?

Answer 6

if turning the steering wheel makes the noise increase then it's the power steering pump/fluid level