Originally Posted by mckcuzzi
94 bonneville- yesterday as i driving the brake light came on and there was a constant chiming noise. I checked the brake fluid res and it was low. ?
I don't know if you have this resolved yet, but...
The brake light and chiming is notice to get off of the road, because your brake system is losing pressure. (The reservoir was low, right?)
I can't know if your discs are having a problem. But if you can't find anything...
Either pull the covers off of your rear drums, or reach/look around from underneath the car. Check to see if the brake cylinders on either side are leaking fluid. There will be a fluid stain. They can do it easily without you noticing it in normal day to day use.
The way our brake systems work (it'* almost like 2 systems) you can lose a little fluid and a lot of effective pressure in the rear, before the fluid shortage appears in the reservoir and the system knows it'* losing pressure.
Also, if you are losing pressure at the drums, you're stopping on your front brakes. Which is not a world-ender, because the discs normally have the majority (80%?) of the stopping work. But you'll stress the fronts, and go through pads faster.
1995 SE ..Green and Rattle Can...234K mi...Bonnie (she'll outlive me)
1998 SSEI .. White ..119K mi...Evey
1996 SSE ..MajTeal..157K mi...4/12- Dealer trade full of Lucas Trans fix