Brake vibration, pulsation

[grenidlady]

We had our car in for repair, not brake related. When we got it back, the brakes were making a terrible vibration and pulsation when applied. There was note on the service ticket that our front rotors were warped. This was news, but my husband replaced the rotors and even though there was a lot of pad left on the current brakes, he replaced them with new ceramics. When this didn't take care of the problem, he spoke with another man who, like himself has worked on cars all his life. He seemed to think it was the calipers, and sure enough, when he took them apart there seemed to be a problem with one. Both were replaced with new. HOWEVER, the problem is still there. Can you think of anything else that could be causing this problem. It's very pronounced when braking from high speeds, but is there in some form at all times when the brakes are applied. Only happens when you use the brakes. Any input would be appreciated. It's a 1994 Deville Concourse.

[Auto Upkeep]

Here are two articles that discuss all the possibilities:
www.mightyautoparts.com/pdf/articles/tt80.pdf
http://motorage.search-autoparts.com/mo ... ail/528295