Just a guess, but possibly accumulator ball....

 

I'll second the accumulator ball. I currently have the same scenario and my mechanic mentioned the accumulator ball. It looks like a fairly simple installation, but you may want to do some research on the exact procedure. Please let us know how it goes.

 

can anyone discribe the accumulator ball removal and replacement?
anything that should be watched for? or special procedures?

thanx don

 

Get the CD ROM XJS parts & service manual on ebay - A well spent 30 bucks (doesn't work on Vista). I just got mine and would send you a print screen jpeg of the A-ball page, but I'm emailing the supplier as some items aren't opening, including the section on brakes.

 

First, you'll need a hex bit for you ratchet - I forget what the size is. You may want to evacuate the back pressure by hitting your brake pedal 20-30x without engine on. Get a good grip on the motor because it may take some pressure and you don't want to break the mounts. Unscrew it and pop on the new one - and Bob's your uncle !!

Probably common knoweldge, but I'll say it anyways -- these things only last 10 years and the nitrogen leaks out. Be careful of cheap accumulators - the usually windup being NOS - ie, 1993 - 17 years old and probably on death's door from the second you mount it. Be sure to buy a NEW one from a reputable seller. I use Rock Auto. $165 +/-

ACDELCO P/N 25528382 (GM used the same teves system in the late 80's / early 90's)