Engine Noise While Idling or After Cold Start on Jaguar XJ8

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.

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Average mileage: 93,788 (35,100–133,000)
Engine affected: 3.6L 6 Cylinder
4 model years affected: 1998, 1999, 2000, 2001
14 people reported this problem
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problem details
1998 Jaguar XJ8 97,000 mi,
Need first starting the car .......a tiking noise but stop after you rise the motor. No engine lights or anything gave me no warrants. Now my car will not start mechanic says it the timing chain bent and it damaged the motor. Somebody please help don't have much money work for the Government which was shut down. Helpppppp!!
2000 Jaguar XJ8 47,000 mi,
Filled car to the maxium with suspreme gas. This has happened two times on two different motors. Drove about 1 mile,parked car went into grocery store came out tried to start car and only the starter turned over went into home came out, in few minutes car wouldn't start only starter turned over. Both times to the same shop to diagonsis it no compression on both sides. Had it towed about 100 miles to Jaguar dealer,they said I needed a motor and I told them I had only 47,000 miles on it, the timing chain are known to break, only thing they said another motor because mine might be bad on the inside. Now parked at foriegn car garage next month will be 1year says the same thing, I need a motor. Jaguar dealer charged $3,500 and I paid $2,700 for motot, garage want $2,000 for motor and $3,000 to install.I've had the car for 3 years and haven't drove it for a complete year and still paying for it and have tags and insurance.
engine noise sounds like heavy metalic rapping, sounding like main bearing failure
1999 Jaguar XJ8 133,000 mi,
Rattle when idleing
1998 Jaguar XJ8 - 3.6L 6 Cylinder 82,000 mi,
REBUILT ENGINE
1998 Jaguar XJ8 133,000 mi,
Same noise, and nothing working on one side.
2000 Jaguar XJ8 101,000 mi,
Both of my top tensioners went the top fell off one of them and went through the timing chain which jumped the timing by a tooth. Luckily, no valve to piston damage! Now I need to figure out the easiest way to change the now streched timing chain. Looks like I need a whole bunch of special tools.
2000 Jaguar XJ8 - 3.6L 6 Cylinder 35,100 mi,
Local dealership suggested -- gien age of vehicle -- replacement as 'preventive maintenance' with estimated overall cost of $1350.00