Rear Brake Lines May Be Too Close to the Exhaust
Brakes, January 18, 2005
RepairPal Expert Overview
Our Quick Take:
On certain vehicles, the rear brake lines may be too close to the exhaust, which could heat the lines and cause the brake fluid to boil. If the brake fluid boils, effectiveness of the rear brakes would be reduced and a crash could occur.
What Should You Do?
Please contact your GM 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.
On certain vehicles, the rear brake lines may be close, or come into contact with the exhaust manifold. This could heat the lines and boil the brake fluid; the lines could also wear from contact. If the brake fluid boils, or leaks, effectiveness of the rear brakes would be reduced and a crash could occur.
Dealers will inspect the left engine exhaust manifold clip for alignment and placement on the body mounted stud. If it's correct, they will reposition the clip on the brake lines and reinstall the clip on the stud. Dealers will ensure that both rear brake lines have the proper clearance to the left exhaust pipe and the machining tab on the rear differential housing will be removed. The brake lines in the affected areas will be inspected for damage and will be replaced if there are signs of wear-through on the nylon overcoating. The recall began January 18, 2005. The GM recall number is 04086.
Mfr's Report Date:
January 18, 2005
NHTSA CAMPAIGN ID Number:
NHTSA Action Number:
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Potential Number of Units Affected:
CERTAIN PASSENGER VEHICLES WERE PRODUCED WITH ONE OR BOTH REAR BRAKE HYDRAULIC LINES THAT CAN COME IN CONTACT WITH OR BE AFFECTED BY HEAT FROM THE LEFT ENGINE EXHAUST MANIFOLD AND THE LEFT EXHAUST PIPE. THE BRAKE FLUID COULD REACH ELEVATED TEMPERATURES AND BOIL.
IF THE BRAKE FLUID BOILS IN A REAR BRAKE LINE, THE EFFECTIVENESS OF THE REAR BRAKE SYSTEM WOULD BE REDUCED WHICH COULD RESULT IN A BRAKE LINE LEAK AND LOSS OF BRAKE FLUID. IF ENOUGH FLUID LEAKS FROM THE REAR BRAKE SYSTEM SO THAT BRAKE PEDAL APPLICATION CAN NO LONGER BUILD PRESSURE TO THE REAR BRAKES. THE OPERATOR OF THE VEHICLE WILL EXPERIENCE LIMITED BRAKING WHICH COULD RESULT IN A CRASH.
DEALERS WILL (1) INSPECT THE LEFT ENGINE EXHAUST MANIFOLD CLIP FOR PROPER ALIGNMENT AND PLACEMENT ON THE BODY-MOUNTED STUD. IF INCORRECT, THEY WILL REPOSITION THE CLIP ON THE BRAKE LINES AND REINSTALL THE CLIP ON THE STUD; (2) THE DEALER WILL VERIFY THAT BOTH REAR BRAKE LINES HAVE THE PROPER CLEARANCE TO THE LEFT EXHAUST PIPE. THEY WILL REPOSITION THE LINES BY BENDING AS NECESSARY; (3) DEALERS WILL REMOVE THE MACHINING TAB FROM THE REAR DIFFERENTIAL HOUSING. ALSO, DEALERS ARE TO INSPECT THE BRAKE LINES FOR WEAR IN THESE RELATED AREAS AND REPAIR OR REPLACE IF THERE IS ANY SIGN OF WEAR-THROUGH ON THE NYLON OVERCOATING. THE RECALL BEGAN ON JANUARY 18, 2005. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2239 OR CHEVROLET AT 1-800-630-2438.
GENERAL MOTORS RECALL NO. 04086.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION¿S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Recall data provided by the National Highway Traffic Safety Administration