Problem Description and Possible Solution
Front brake rotors can wear causing a pulsation felt in the brake pedal. Our technicians often recommend replacement of the front rotors and brake pads as the best option to correct this condition.
Average mileage: 79,889 (44,000–193,000)
25 people reported this problem
Found this recently. About to have this done. GM reports that owners of 2005-07 Relay, Buick Terraza, Chevy Uplander, and Pontiac Montana minivans may experience brake pulsation, even if they’ve had a brake job done recently. The problem has been traced to poorly designed dust shields that allow road debris to get thrown at the rotors. All that grit produces excessive and uneven rotor wear. The new dust shields are #19167950 for the left side, and #19167253 for the right side. Once you install the new shields, have the old rotors machined or replaced so you can start fresh.
Pulsations,also (ABS)come on when turn hard left,or right.Had it tested by penntson auto,they say sensor keep pulling loose. But the rotors I,replaced all four,and brakes also.
same as some of the rest but more at high speed,when braking shakes very bad,had frontend check and nothing was found,except rotors&brakes.(email@example.com)