Volvo RWD 700 Forum

Howdy Simon,

My guess, strictly a guess; debris in the LF/RR circuit that was blocking application pressure, is now holding residual pressure.

Install a pressure gauge that attaches to the brake bleeder to see if that is your problem. Here is one:

http://www.irvansmith.com/scart/quick-check-brake-pressure-gauge-p-2117.html

If any pressure is held on the LF/RR circuit after the pedal is released that would certainly cause the pads to drag against the rotors.

The good news is the debris, if that is indeed the problem, is now far enough along the line that pressure bleeding should push it out. Disconnect the calipers and use copious amounts of fluid to "wash" the debris down the line. Reverse bleed the calipers. Put the system back together and bleed by normal procedure.

The bad news is the shudder may be caused by the disk(s) and may be permanent until they are replaced. See this article:

http://www.stoptech.com/tech_info/wp_warped_brakedisk.shtml

If not debris in the circuit, I am stumped. Please do let us know what resolves the problem.
--
Mr. Shannon DeWolfe -- I've taken to using mister because my name misleads folks on the WWW. I am a 53 year old fat man. ;-)