Toyota Tundra owners have reported 3 problems related to engine knocking noise (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota Tundra based on all problems reported for the Tundra.
When the engine starts it has a very noticeable knocking noise on the passenger side that never goes away. You put it in gear and you can really hear the engine knocking, and the knocking speeds up as you accelerate. Even after the engine warms up completely you can still hear it knocking(stationary, or in motion) . Also my gas mileage is horrible! I average about 12. 3mpg every tank. The best mpg I have ever seen is 13. 4 mpg average which is ridiculous even for a full size truck. I always loved Toyota vehicles and ever since I was young I always wanted a Toyota truck because I thought they were the toughest out there, but after owning this 2013 Toyota Tundra I'm disgusted.
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2008 Toyota Tundra truck with 5. 7l engine. Vehicle has a loud knocking noise that seems to be a valve train noise when truck is accelerating after slowing down, under load or towing a trailer. Took truck to the dealer multiple times so far , with feedback ranging from can't hear anything to this is a normal noise of the engine. I have read many postings online about this issue but dealer does not recognize the problem and insists condition is normal. This seems to be a poor design or poor quality that Toyota needs to address. I own several Toyotas and it seems quality standards are really dropping lately. Perhaps it is time to move away from Toyota brand. This engine situation could be vey dangerous issue if a part inside of the engine breaks off and cause the engine to shut down, leading to loss of braking and steering capabilities.
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The contact owns a 2008 Toyota Tundra. At 26,787 miles, the contact heard a knocking sound coming from the motor. He took the vehicle to the dealer and they stated that the noise was normal, and was coming from a piston. When the motor is cold, the piston strikes against the motor cylinder wall. The manufacturer stated that all 5. 7l engines had this defect and offered to extend the contact's warranty. They further stated that it would take much effort to correct the defect. The vehicle has not been repaired. The failure mileage was 25,000 and current mileage was 27,000.