Ive owned this disco for over a year and have not had any problems. Then the other day while driving a roaring noise came from appears to be the drive train.The more you accelerate the louder it gets.Its a weird sound almost like a roar of air.The RPM's havent change any and trainny is shifting fine.There is no performance differance. All fluids have been checked and are fine.The noise get's pretty loud . Any suggestions?

 

I'd assume the exhaust manifold is cracked. I had a '97 and had one replaced under recall, and the other replaced later. Good luck.

 

Since you say it get louder while accelerating (under load), so most likely it's a bearing. Of course, it's hard to say what bearing it is. Have you noticed this roaring to be more prominent while turning a corner? If so, it's definitely a wheel bearing. Could be your transfer case input bearing. Get underneath and grab your shaft and yank it hard (sounds naughty, I know) from side to side, right at all the inputs. If you feel/see some slop, then you may need one/some of these bearings replaced. Also, see if the noise persists when you put it in neutral while the vehicle in motion.

Or, take it into a good shop and have them diagnose it. Most of these bearings are easily serviceable by any competent mechanic.

Daniel

 

...also could be your rad fan's clutch (if mechanically driven).

 

Thanks for all your replies....It is the fan clutch. Got off cheap this time.