On this V8 engine, timing chain problems are very common. Because the timing chain tensioners were made from plastic, they can fail prematurely and cause serious engine damage. A noticeable engine noise while idling or during a cold start can indicate a timing chain tensioner problem. The engine noise may also be accompanied by a rough or uneven engine idle. Improved components are available to remedy this problem.
Rough Idle After Cold Start With Code P050D Stored on Jaguar XJR
Average mileage: 206,045 (206,045–206,045)
7 people reported this problem
1996 Jaguar XJR 206,045 mi, Visitor
New engine due to timing failure