1999 Subaru Legacy Q&A
1999 Subaru Legacy Question: ABS is going wacky!
I run a garage and I have a weird problem: When you first start this car, the abs brakes pulsate constantly while driving and braking for about 15-30 minutes of driving in traffic. After that, the ABS light will come on in the dashboard and then the brakes will stop pulsating and work great. We have changed relays, ABS pumps, and the ABS module. HELP! - cardgrl
Is the pulsation occurring only when depressing the brake pedal? Or is the pump running all the time? Have you checked the wheel speed sensors, are they clean? Are they tight and not moving around? Are the wheel bearings loose? Any movement of the sensors can cause ABS activation, so check that out. - Bret Bodas