Question about 2001 Jaguar XJ8

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When I come to a stop there is a click just as the car recoials form the stop comingfrom the rear of the car. Dealer says its in the suspension, but sounds to me like in the drive train?? Any ideas? Could it be the differential? And how do you get the differential fluid chaged? EZ Lube?

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Your dealer is most likely correct, it may be a worn suspension bushing or another suspension component and the sooner you get it repaired the cheaper it will be (quite apart from any potential safety/handling issues).

When the car has stopped the drive train and diff are no longer operating, so the sound which you describe almost certainly isn't anything to do with those components.

Diff fluid on most cars these days is intended to be for life. Unless major work is needed it does not normally get drained and replaced, but it does need checking at major services anfd topping up if need be. Ensure the car is on level ground with a near empty boot (US=trunk) undo the hex plug on the rear diff casing. Pop your finger in the hole and check the fluid on your finger. If it's like used, black engine oil then something is seriously wrong and you'll need to investigate further. It should look almost like new fluid and be up to the level of the plughole threads. If not then top it up using the correct oil grade for your area of the world. Filler bottles are squeezy and have a flexible long necked spount which you can pop into the plug hole. Squeeze the bottle until the oil drips out of the hole and replace the plug using a new sealing washer. be careful to correctly tighten the plug:too tight will strip the threads and too loose will cause a leak and a worn out diff.

For specifics, buy yourself a Haynes manual for your car: it will pay for itself with the very first job which you use it for.

Posted on Oct 05, 2009

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