Well this topic came back up at a good time for me to ask a few questions.
Being new to the P38 I am in the dark about the signs that an accumulator is going away. I have only driven my new to me 2000 10 miles before it went into the garage to replace the heater O rings and refinish the wood-- along with a few other bits which required attention.
I was not thrilled with the brakes in that 10 mile ride-- seemed like it had no feel- a bit wooden and did not stop all that great. Pads and disks look OK.
Did not think about it until yesterday. I had to run a number of heat cycles statically in the garage to burp the new coolant and during all those times everything sounded pretty normal in the engine bay. Yesterday I turned the key to turn on the radio to check out the base speakers which I just reconed, and there was a loud buzzing coming from the accumulator. I mean LOUD. I started up the and the buzzing stopped. I turned her off and turned the key again to the run position (dash lights up)- and no buzzing.
This is the first time I heard this. There are no warning lights going on during the buzzing-- or when I press the brake pedal.
My question-- Is the buzzing normal if you just have been stopping and starting- just running the motor at idle-or is this a sign that the pump is going out? If normal-- does the fluid leak down if not using the brakes with many stops and start ups so at some point the pump has to run hard and loud to get the pressure back up. The brake pedal never got soft- at least I never noticed it since I always put my foot on the brake when I start an automatic.
And-- what is the three amigos? Yeah-- I know- newbee