Engine Whining Noise

COUGHRAN

MEMBER
2005 FORD EXPEDITION
V8
4WD
AUTOMATIC
50,000 MILES

When the vehicle is idling, there is no noise, however, when I accelerate a whining noise comes from the engine.

Tuesday, June 16th, 2009 AT 3:13 PM

4 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Can you describe the sound? Also, does it do it if the engine is both hot or cold?

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Thursday, June 18th, 2009 AT 11:51 PM

COUGHRAN

MEMBER
3 POSTS

It doesn't sound hot. It doesn't affect the performance of the vehicle. I still have lots of power. I notice yesterday that the sound is also heard at the idle which I didn't hear before.

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Friday, June 19th, 2009 AT 6:41 AM

COUGHRAN

MEMBER
3 POSTS

I just thought of something else that may help describe the noise. It sounds like a standard car when backing up.

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Friday, June 19th, 2009 AT 10:16 AM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Ibased on your description (a standard trans in reverse) sounds like the power steering pump. Have you checked to make sure the fluid is full and if the sound is coming from there. An easy way to check for the sound is to remove the serp belt and start the engine to see if the sound is gone. If it is, that would be my guess at this point. NOTE: If you remove the belt, only run the engine for a few seconds. It will OVERHEAT and eventually kill the battery with the belt off. Also, it could just be low on power steering fluid.

Check it out and let me know what you find.

Joe

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Friday, June 19th, 2009 AT 5:16 PM