One problem related to engine knocking noise has been reported for the 2011 Chevrolet Silverado 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Chevrolet Silverado 1500 based on all problems reported for the 2011 Silverado 1500.
The contact owns a 2011 Chevrolet Silverado 1500. While driving approximately 40 mph, the engine began to emit a knocking noise and the engine traction warning indicator illuminated. Also, the vehicle took a longer amount of time than usual to stop when the brake pedal was depressed. The contact took the vehicle to a certified mechanic who diagnosed that the number one and number 7 spark plugs were burned out and needed to be replaced. The vehicle was repaired, but the failure recently recurred. The manufacturer was made aware of the failure and opened a case (reference number: 8/2905223479). The approximate failure mileage was 62,765.