The fuel rail pulse damper in your truck's engine is a small clip that helps keep the engine running smoothly. In certain 8.1L V8 engines, this clip can break and fail to do its job.
Risk if Unfixed
If the clip fails, a fuel leak could occur, and if there's an ignition source nearby, it could cause a fire.
Free Fix
Your dealership will replace the faulty clip with a new one, free of charge. You should schedule the repair as soon as possible to ensure your safety on the road.
Show original NHTSA language
Original — What Happened
ON CERTAIN TRUCKS EQUIPPED WITH AN 8.1L V8 (RPO L8-VIN G) ENGINE HAVE A CONDITION IN WHICH THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP MAY FRACTURE RESULTING IN INADEQUATE RETENTION OF THE DAMPER.
Original — Risk if Unfixed
IF THE DAMPER COMES LOOSE, A FUEL LEAK MAY RESULT. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.
Original — Remedy
DEALERS WILL REPLACE THE ENGINE FUEL RAIL PULSE DAMPER RETAINER CLIP FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 31, 2006. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438 AND GMC TRUCKS AT 1-866-996-9463.
The hydro-boost assembly is a part that helps your brakes work smoothly. In some affected vehicles, the accumulator in this assembly could crack and break off, causing a potential safety issue.
Risk if Unfixed
If this happens while the hood is open, you could get hurt by flying fragments. More importantly, if the accumulator cracks, brake fluid could leak out, making it harder to steer and brake. This could cause a crash without warning.
Free Fix
Your dealer will test the hydro-boost assembly for free, and if it fails, they'll replace it with a new one at no cost to you. Schedule the repair as soon as you get the recall notice.
Show original NHTSA language
Original — What Happened
CERTAIN TRUCKS, SPORT UTILITY VEHICLES, AND VANS EQUIPPED WITH BOSCH HYDRO-BOOST BRAKE ASSEMBLIES, THE HYDRAULIC BRAKE BOOSTER PRESSURE ACCUMULATOR MAY CRACK AND SEPARATE FROM THE HYDRO-BOOST ASSEMBLY DURING NORMAL OPERATING CONDITIONS.
Original — Risk if Unfixed
IF A SEPARATION OCCURRED AND THE HOOD OF THE VEHICLE WERE OPEN, FRAGMENTS FROM THE ACCUMULATOR COULD CAUSE INJURY TO PEOPLE IN THE IMMEDIATE AREA. THE PRESENCE OF THIS CRACK OR FRACTURED SURFACE COULD ALLOW THE HYDRAULIC FLUID TO LEAK FROM THE ACCUMULATOR CIRCUIT OF THE BOOSTER ASSEMBLY. THE LOSS OF FLUID WOULD CAUSE INCREASED STEERING AND BRAKING EFFORT AND A CRASH MAY OCCUR WITHOUT PRIOR WARNING.
Original — Remedy
DEALERS WILL TEST THE HYDRO-BOOST ASSEMBLY FOR FUNCTIONAL OPERATION OF THE TWO-FUNCTION VALVE. IF THE HYDRO-BOOST ASSEMBLY FAILS THE TEST, DEALERS WILL REPLACE THE ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON MARCH 23, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC TRUCKS AT 1-866-996-9463 AND HUMMER AT 1-800-732-5493.
The brake system's hydro-boost housing relief valve is a critical part that helps your vehicle slow down smoothly. In some models, this valve was made with a slightly incorrect shape that could cause problems.
Risk if Unfixed
If the valve's seal breaks, you might feel a bit more resistance when braking or parking. In rare cases, this could make it slightly harder to slow down your vehicle, especially when driving uphill or towing a trailer.
Free Fix
Your authorized dealer will replace the faulty relief valve with a new one at no charge. You'll get a repair notice with instructions on how to schedule the fix.
Show original NHTSA language
Original — What Happened
CERTAIN SPORT UTILITY VEHICLES, PICKUP TRUCKS, AND PASSENGER VANS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, ?PASSENGER CAR BRAKE SYSTEMS.? SOME OF THESE VEHICLES WERE PRODUCED WITH AN OUT-OF-SPECIFICATION BRAKE HYDRO-BOOST HOUSING RELIEF VALVE BORE.
Original — Risk if Unfixed
CONSEQUENTLY, THE VALVE O-RING SEAL MAY FRACTURE. STEERING EFFORTS MAY BE SLIGHTLY INCREASED WHILE BRAKING OR PARKING. UNDER CERTAIN DRIVING CONDITIONS, A FRACTURED SEAL MAY REQUIRE A SLIGHT INCREASE IN THE APPLIED BRAKE PEDAL EFFORT TO ACHIEVE THE SAME VEHICLE DECELERATION RATE AS PRIOR TO THE SEAT FRACTURE.
Original — Remedy
DEALERS ARE TO REPLACE THE HYDRO-BOOST RELIEF VALVE. THE RECALL BEGAN ON JUNE 18, 2004. OWNERS SHOULD CONTACT CADILLAC AT 1-866-982-2339; CHEVROLET AT 1-800-630-2438; GMC AT 1-866-996-9463; OR HUMMER AT 1-866-486-6376.
Your vehicle's wheel hub is a critical part that connects the wheel to the steering and braking systems. The hub assembly is made by Federal-Mogul and has a specific part number, but you don't need to worry about those details.
Risk if Unfixed
If the hub assembly fails, it could cause your wheel to come loose while driving, which is extremely hazardous. This could lead to a loss of control and a potentially serious crash.
Free Fix
Federal-Mogul will replace the faulty hub assembly with a new one at no cost to you. You should contact them toll-free at 877-489-6659 to schedule the repair as soon as possible.
Show original NHTSA language
Original — What Happened
CERTAIN FEDERAL-MOGUL REPLACEMENT WHEEL HUB ASSEMBLIES WITH THE BRAND NAMES: NATIONAL, CARQUEST P/NOS. 515020, 515021, 515025, 515053, 515054, 515059, AND 515060, SHIPPED BETWEEN JANUARY 23, 2006, AND DECEMBER 20, 2007, SOLD FOR LIGHT DUTY AND MEDIUM DUTY TRUCKS. THE INBOARD RETENTION NUT USED TO MAINTAIN HUB BEARING ASSEMBLY CAN LOOSEN RESULTING IN AN ABS LIGHT INDICATION, NOISE, AND/OR WHEEL SEPARATION.
Original — Risk if Unfixed
WHEEL SEPARATION CAN RESULT IN A VEHICLE CRASH.
Original — Remedy
FEDERAL-MOGUL WILL NOTIFY CUSTOMERS AND WILL REPLACE THE HUB ASSEMBLY FREE OF CHARGE. THE RECALL BEGAN ON FEBRUARY 7, 2008. OWNERS CAN CONTACT FEDERAL-MOGUL TOLL-FREE AT 877-489-6659.
