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Rover 25 Faults has a high pitched noise coming from the engine

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: High Pitched noise

I had a high pitch noise, didn't sound like it came from the "underside". Turns out it was one of fans that had little chips in the blades? My Audi dealer replaced it, and it's fine now.

Posted on Aug 19, 2008

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freetek
  • 5568 Answers

SOURCE: A high pitched whining noise in the engine.

Some questions:
- Does it happen when standing if you raise the RPMs up to 2-3,000? If yes, listen closely to the alternator.
- Is it related to road speed?  If so, then you should put it on a chassis lift, wheels free, then cause it to happen by putting it in gear and raising RPMs to road speed.
I suspect it isn't the acceleration that causes the pitch to change but rather engine RPMs.
You could check this while on the road by starting in a lower gear and noting when the whine is very noticeable, then slip into the next higher gear to see if the whine changes or remains the same. If it remains, it probably isn't related to the engine but to some rotating part(s) outside it (for example, wheel bearings.) If it changes, then the noise is coming from some engine component and alternators can do this when the amperage load is high; it's also a part that turns at a fairly high speed and will 'whine' rather than 'growl.'        

Posted on Jan 14, 2009

  • 114 Answers

SOURCE: high pitch whistling noise in engine compartment of 2005 envoy

There may be a small hole or cut in a vacum line or possibly just loose. Also make sure the air filter box and the big hose to it are secure and clamps etc are tight. Pulleys and belts can make a high pitch sound also.

Posted on Mar 22, 2009

  • 3 Answers

SOURCE: high pitched squealing noise when i start engine

One of the belt should be loose or worn. Make sure they are not worn or cracking before tightening.

Posted on Jun 23, 2009

  • 1 Answer

SOURCE: high pitch noise from engine compartment in 2003 Subaru Fores

There is a little beeper that sits just behind the front grill close to the Subaru emblem. It makes the sound you hear when you press the remote to lock or unlock the doors. It sometimes whines for a while but eventually stops. I have had this for a couple of years and it does not appear to have caused any problems.

Posted on Sep 12, 2009

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High Pitched noise


I had a high pitch noise, didn't sound like it came from the "underside". Turns out it was one of fans that had little chips in the blades? My Audi dealer replaced it, and it's fine now.

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