Brake Booster Check Valve Failure May Lead to Poor Braking Assist
Brakes, May 4, 2009
RepairPal Expert Overview
Our Quick Take:
The part of the braking system that makes braking effort easier is called the brake booster. There is a check valve in this booster that may stick when shutting off the engine. When you restart your engine, if this valve is sticking, your brake pedal may be hard to depress and could make stopping distances longer than usual.
What Should You Do?
We at RepairPal have designated this a high priority recall; a hard brake pedal may make stopping distances longer than expected. Please contact your Mitsubishi dealer. They will check to see if your specific vehicle is affected and advise you on what to do next. Always have your vehicle identification number (VIN) handy when you call.
A check valve in the power brake booster may stick and cause the brake pedal to be harder than usual, usually after the vehicle has been shut off and then restarted. This may lead to longer stopping distances, which may create a safety hazard. Dealers will replace the brake booster check valve. The Mitsubishi recall number is SR-09-002. This recall began in April, 2009.
Mfr's Report Date:
May 4, 2009
NHTSA CAMPAIGN ID Number:
NHTSA Action Number:
SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Potential Number of Units Affected:
MITSUBISHI IS RECALLING 39,711 MY 2008-2009 OUTLANDER AND LACER VEHICLES. INCORRECT MATERIAL COMPOSITION OF THE BRAKE BOOSTER CHECK VALVE MAY CAUSE THE CHECK VALVE TO STICK CLOSED WHEN THE ENGINE IS SHUT OFF. WHEN THE VEHICLE IS RE-STARTED AND PUT INTO MOTION, UNDER CERTAIN DRIVING CONDITIONS (VERY SLOW VEHICLE MANEUVERS), THERE MAY BE INSUFFICIENT INITIAL BRAKING ASSIST.
THIS MAY TEMPORARILY INCREASE THE STOPPING DISTANCE OF THE VEHICLE AND THEREFORE INCREASE THE RISK OF A CRASH.
DEALERS WILL REPLACE THE BRAKE BOOSTER CHECK VALVE FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING APRIL 2009. OWNERS MAY CONTACT MITSUBISHI AT 1-800-222-0037.
MITSUBISHI RECALL NO. SR-09-002. OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV .
Recall data provided by the National Highway Traffic Safety Administration