Some of the Ford products aeriate like that. I have a seen a few that we have had to do. Of all the manufacturers, they tend to have a noisier system. A system may be a little bubbly. This may not be
be the source.
Having said that, did you use a stethescope as I suggested?
IF you use a long prybar or similiar you can put your ear on the handle and use the tip to touch areas to hear where the significant noise is coming from.
Ford Idler pullies are common. The pump increases the tension causing the worn pully to whine.
Sunday, November 7th, 2010 AT 3:09 AM