What are the common issues with the 2001 Jaguar XJ8 Vanden Plas model?

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The 2001 Jaguar XJ8 Vanden Plas has a known issue with its thermostat failing regularly. Some owners recommend replacing it every year as a preventive measure. A malfunctioning thermostat can lead to overheating, coolant loss, and potential engine damage. Additionally, the timing chain tensioners in the Vanden Plas are often faulty. It is advised to proactively switch out the plastic parts of the timing gear and the water pump before they wear out. The cost for replacing a timing chain tensioner can range from $1,500 to $2,000, including parts and labor. The throttle body is susceptible to premature clogging, and the valve covers on the Jaguar can gather sludge around the 80,000 mile mark. Prospective buyers of a used Vanden Plas should carefully check for these issues before making a purchase.

What are the common issues with the 2001 Jaguar XJ8 Vanden Plas model?

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