Spongy Brake Pedal After Replacing Pads (ASN 0893-08)

SPONGY BRAKE PEDAL AFTER REPLACING PADS

TECHNICAL SERVICE BULLETIN

SPONGY BRAKE PEDAL AFTER REPLACING PADS

Model(s): 1986-93 Acura Vehicles

Group: Brakes

Bulletin No.: ASN 0893-08

Date: August, 1993

SERVICE INFORMATION

If new brake pads are installed on a care with unevenly worn discs, you'll end up with a low spongy brake pedal.

Under "average" driving conditions, you can usually replace the brake pads at least twice without refinishing the discs. After numerous pad replacements or severe usage, however, the discs can wear unevenly. At this point, you have a dished disc surface, which causes uneven pad wear, which makes the pad backing plate uneven under pressure. All of these uneven surfaces combine to cause caliper flex, which is what gives you the low, spongy brake pedal.

So if you know the pads have been replaced, a couple of times, or whenever the discs and pads look suspicious, check the discs for taper. Depending on your measurements and the thickness of the discs, refinish or replace the disc as needed.