1999 COBRA SIERRA Complaints

View complaints related to 1999 COBRA SIERRA. The complaints found here are submitted by actual consumers with first hand experience. There are more than 10 complaints submitted for the 1999 COBRA SIERRA. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

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  • 1999 COBRA SIERRA
    - RIVERSIDE CA, CA

    AFTER ~20 MILES OF STOP-AND-GO DRIVING, BRAKED AT ~40 MPH TO SLOW/STOP FOR TRAFFIC 5- TO 6 CAR-LENGTHS AHEAD. BRAKE PEDAL SANK TO FLOOR WITH LITTLE RESISTANCE, NO SLOWING OF VEHICLE. DURING BODY REPAIRS, SHOP EMPLOYEE NOTED "SPONGY" BRAKE PEDAL FEEL, `INEFFECTIVE DURING HARD BRAKING'. TRUCK TRANSFERRED TO MECHANIC, WHO FOUND BRAKE MASTER CYLINDER LEAKING FROM REAR SEAL & RESERVOIR GASKETS - AND ALSO FOUND ALL FRONT PADS WORN `TO THE POINT OF NEEDING REPLACEMENT'. SELLING GM DEALER REPLACED PADS BUT DENIED M/C LEAKAGE, BUT SECOND DEALER (DUTTON GMC IN RIVERSIDE, CA) CONFIRMED LEAKAGE AND REPLACED M/C UNDER WARRANTY. 2,100 MILES LATER, ON 10/4/99, NOTED FRESH FLUID LEAKAGE AT REAR OF M/C; WHEN CAP REMOVED, NEW FLUID HAD TURNED VERY DARK; WHEN REPLACING CAP, NOTED FLUID "SQUISHING" FROM ROUND SEALS BETWEEN RESERVOIR AND M/C BORE.

    Source: NHTSA WEB SITE