Toyota Tundra Drive Belt and Tensioner Pulley Issues
Background
The second-generation Toyota Tundra, produced from 2007 to 2013, experienced issues with drive belt and tensioner pulley noise. These problems have been widely discussed on online forums, including TundraDiscussion.com.
Drive Belt Noise
The drive belt, which connects the engine to various accessories such as the alternator and water pump, can become noisy due to wear or misalignment. Symptoms of drive belt noise include:
- Squealing or chirping sounds
- Increased noise when the engine is cold or under load
Tensioner Pulley Noise
The tensioner pulley, which maintains proper tension on the drive belt, can also cause noise. Issues with the tensioner pulley can arise from worn bearings or a faulty spring. Symptoms of tensioner pulley noise include:
- Grinding or rattling sounds
- Increased noise during acceleration or deceleration
Toyota's Response
In response to these issues, Toyota issued Technical Service Bulletin (TSB) 07048-09 in April 2009. This TSB provides guidance to dealerships on diagnosing and repairing drive belt and tensioner pulley noise. The TSB recommends replacing the drive belt and tensioner pulley as an assembly, along with inspecting and replacing any other affected components.
Conclusion
Drive belt and tensioner pulley noise in the 2007-2013 Toyota Tundra is a well-documented issue. Toyota has addressed the problem through a TSB, providing dealerships with instructions on how to diagnose and repair the noise. If you are experiencing drive belt or tensioner pulley noise in your Tundra, it is recommended to consult your local Toyota dealership for proper diagnosis and repair.
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