|
Xoutpost server transfer and maintenance is occurring.... |
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management |
|
LinkBack | Thread Tools | Display Modes |
#21
|
||||
|
||||
Quote:
Your symptoms mirror what mine were and you even said it made a noise (yours=whooshing, mine=gurgling) and these are all listed as vacuum pump failure symptoms. I'm not saying that those things are solely indicators for the vacuum pump as they can also be from a master cylinder. I can't guarantee that I'm correct, but if I were in your situation I would swap vacuum pumps without a doubt. The benefit is if it's the pump you are one and done, and if not you will finish with a completely new top end of your brakes done (after new fluid & bleeding)... Sent from Embassy network using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
Sponsored Links | |
|
#22
|
|||
|
|||
I know you said your brake fluid level has remained full but I had the same symptoms where the pedal went to the floor and would get a faint whooshing sound while pumping the pedal but for me it was a ruptured rear brake line under the running board area. I had a shop replace the line, they did both since the other line under there wasn’t looking to healthy. Had to have someone else bleed the brakes though because the abs pump went dry and the shop didn’t have the software to properly activate the abs pump. So as long as your abs pump hasn’t gone dry, bleeding shouldn’t be an issue. I was with the guy that had the Ista program and brake bleeding was hell, took long ass time! I also replaced the booster and mc just in case a seal or diaphragm got messed up. Wasn’t too bad of a diy, just have to remove the wiper arms, cowl and wiper pump.. no way it was gonna come out without removing those items.
__________________
2003 4.6is |
#23
|
||||
|
||||
Indy determined it's the brake booster. All other components of the brake system checked out fine. Diagnosis cost $187. Plan is to refresh the brake system as the components are all original.
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M. |
#24
|
|||
|
|||
I think if the seal in the vacuum pump isn't working properly it can let some crankcase fumes into the booster and shorten the life on that which is why I think you guys with the V-8s seem to have more booster issues so you might want to check that too. I have a hard time believing that a ruptured diaphragm in the brake booster can cause the pedal going to the floor but if you are replacing the master cylinder too then you have that covered.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#25
|
||||
|
||||
Quote:
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M. Last edited by X5only; 09-05-2024 at 07:52 PM. |
#26
|
||||
|
||||
My X5 is whole again . The brakes are as sharp as ever and the pedal feels solid I think the braking system will be ok for the next eon.
__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|
|