We have just been out in our 2000 Td5 Disco, it has 118,000 on the clock. We started getting a little knocking at 30-40mph. We then started getting it at all speeds, really bad.
Then it got worse, we stopped at lights and the whole car was shaking and reverberating. Worse through the steering wheel. We drove about 1/4 mile to a garage, as we drove up the kerb there was a loud bang, and the knocking/shaking stopped, but we got a puff of black smoke from the exhaust. We then drove about 100 miles home without a peep!!!
It didnt matter what speed we were doing, whether in gear or neutral, clutch in or up, it vibrated.
Weve ruled out the following for the reasons explained.
Fault Reason
UJ's Vibrated when static
Props Vibrated when static
Missfire Revs OK when idle or revved
Diffs Vibrated when static
Duel Mass FW Brand new 500 miles ago
Clutch Brand new 500 miles ago
Transfer/Gearbox Vibrated with clutch depressed, isolating drive train
Would a jammed exhaust cause this? We did some serious off roading last week, and the car hasnt been used since!