I have a 2001 disco2 that makes a ticking or chirping noise under acceleration ..please watch video.... any ideas???

https://youtu.be/ej3dX29CUnQ

 

I have no sound on this computer, but chirping on acceleration is often the front driveshaft about to explode and take out your transmission and several other critical items. There are plenty of threads on this forum the document how to diagnose and what replacements are recommended. Do this immediately.

 

Do you have a grease fittings on your drive shaft ??

 

I agree it sounds like the front driveshaft - the squeaking means that failure is imminent. Once it fails, it will come apart and whack a hole in your transmission. I would stop driving the truck.

Does it make the noise when you're revving in neutral or not accelerating? Only other thing that comes to mind is something from the serpentine belt. Revving the truck in neutral should help confirm the driveshaft as the culprit - if you don't hear the noise while you're not moving, then it's the driveshaft.

You can get a new driveshaft for about $140 shipped from Lucky8. If you're one to work on your own truck, you can probably swap it yourself in an hour or two. If you don't have tools and jack stands, then you'll want to take it to a shop. It'll probably only take them about half an hour with air tools, assuming they don't hit any complications, but I wouldn't be surprised if they charge you a full hour off labor. The old one comes off with 8 bolts and then you install the new one - pretty easy.

 

I will check tonite.

 

angry bird......I had same sound. It was a worn centering ball in the double cardan on front driveshaft.....

 

Thanks for all the replies... I now know where to start.
Does anyone know exactly what causes the "chirping"... as in what parts of the shift are the noise? Is it the center ball? Or the splines or spider piece?

 

Welcome to the forum. I'm glad you found us.

There are some on this forum who are alarmists, in my opinion, but I join with the alarmists on this topic.

The chirping noise is a classic sign of a failing driveshaft, and ignoring it can result in it flying apart and beating a hole in the side of you the transmission, leaving you dead in the water and facing a hefty repair bill.

Happily, replacing the driveshaft is not difficult nor (in the greater scheme of things) expensive. But related to what redwhitekat asked, how many grease fittings are on your current driveshaft? If there are multiple grease fittings it may be simply that it hasn't been greased recently. You could grease it and see if the chirp goes away.

Good luck, and please let us know what you find.

 

I'd just add onto this point: if it's already gotten to the point where it's been chirping for a while, it's not unlikely that the u joint has already experienced significant wear. Greasing it may be a temporary fix for a week or two, but I wouldn't recommend adding grease in lieu of replacing the whole driveshaft, or at least the u-joint. Given the low cost of a new unit, it's cheap insurance compared to the cost of sourcing and installing a transmission.

Once the new one is installed, greasing it regularly during oil changes will prevent wear on the joint going forward. The OEM driveshafts had sealed u-joints, and the grease would dry out due to the proximity to the exhaust. Once the grease dried out, the u-joint would wear and bind until it failed and the driveshaft broke in half, which is what puts a hole in the tranny.

 

I'd have to agree with boston...a new shaft is a cheap piece of mind and no more than an afternoon of work even if inexperienced. Grease is just masking the problem and will not fix it.