What causes loud high pitched whistling sound?

What causes loud high pitched whistling sound?

My bmw is making a very loud high pitch whistling. It sounds like a siren. I took it to a mechanic and he replaced the valve cover but the noise still exists. Please tell me the problem.

Where does the whistle come from in a Honda Element?

When driving 40 mph and above the Element makes a faint whistle noise. The noise is only there when I put my foot on the gas pedal. If I take my foot off the gas and coast it disappears. Sounds like it is coming from the engine compartment.

What causes loud high pitched whistling sound in Dodge Durango?

I Have a 2005 Dodge Durango 5.7l hemi. The pcv valve broke flush to the top of the intake manifold. Any suggestions on removal? Any removal technique has to ensure no valve fragments fall into the area under the valve cover.

What kind of noise does my car make?

There is a very high pitch whine/whistle coming from the engine compartment. I’ve been able to narrow down what I can and can not do to influence the noise. My car is an automatic. – The noise first becomes apparent once the engine has been warm for ~15 minutes. If everything is cold, no (audible) noise. – Accelerating makes the noise go away.

My bmw is making a very loud high pitch whistling. It sounds like a siren. I took it to a mechanic and he replaced the valve cover but the noise still exists. Please tell me the problem.

When driving 40 mph and above the Element makes a faint whistle noise. The noise is only there when I put my foot on the gas pedal. If I take my foot off the gas and coast it disappears. Sounds like it is coming from the engine compartment.

I Have a 2005 Dodge Durango 5.7l hemi. The pcv valve broke flush to the top of the intake manifold. Any suggestions on removal? Any removal technique has to ensure no valve fragments fall into the area under the valve cover.

There is a very high pitch whine/whistle coming from the engine compartment. I’ve been able to narrow down what I can and can not do to influence the noise. My car is an automatic. – The noise first becomes apparent once the engine has been warm for ~15 minutes. If everything is cold, no (audible) noise. – Accelerating makes the noise go away.