[quote=Donolie;6942713]1998 olds intrigue, 3800, auto, 4 wheel disc.
Spongy breaks (ABS/Trac/Check engine/service engine soon)
Friend brought her 'new' car over the weekend complaining about breaks feeling spongy.
First looked at the car and noticed the driver front passenger rear rotors had a lot of rust. They were also cool to the touch, odd after a 20 mile trip.
The driver rear speed sensor has been repaired, and was unplugged.
The breaks are not working on the passenger rear, driver left. There is not any pressure at all at the calipers, and the rusty rotors show this.
Put the car on jack stands and with breaks depressed, the driver front/passenger rear wheels spun freely.
checked break lines/fluid, no obvious leaks.
I tried bleeding from the valve assembly attached to the master cylinder, and got only fluid out of the one bleeder, but not the other one.
Could this be the master cylinder causing this, or the other assembly?
http://imageshack.us/photo/my-images/85/wp0 00007.j...
The bleeder on the right had nothing, the bleeder on the left that had fluid/pressure.
Thanks for any advice-
I would check for any unhooked lines. Along with any Internal fluid leaks in ABS hydraulic modulator. The Speed sensor was not hooked up for a reason. One being a malfunction with the ABS? Possibly Master Cylinder but I highly doubt it. It sounds like a leak or air problem.