Knocking Noise from rear - Coasting / Low Speed

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.

LandySurf

Active Member
Posts
164
Location
London / Cornwall
Hi All
Need a bit of Landy Zone therapy with any thoughts / suggestions you might have.

TD5 90 - Short Wheel Base / 2003
Just came back from service and MOT last week and rather a large bill including new rear crossmember.

Today as I was driving, coming to a halt at the traffic lights and having just dipped the clutch into neutral - ( coasting ) at no more than 5/6 mph, I noticed what sounded like a hammer hitting a steel bar. ( the only way I can describe it ). Didn’t know if it was coming from mine so left it and didn’t think too much more about it.

Tonight same thing again, coming to a stop, no more than 5mph, slowing right down and you can hear this “clunking” noise coming from the back somewhere. Sounds like it’s over my left shoulder in that corner - near side where the exhaust is.

My TD5 was serious underpowered prior to it going in for work recently - they replaced the MAF sensor - and the power since getting it back has been fantastic. However, I assume it may be that the extra burst of power and speed I have been enjoying has shaken something loose or disturbed something and caused the issue.

The noise is very much a clunking / knocking noise. More of a knock thinking about it. Almost like something is hitting against something on rotation of the wheels when coming to a stop.

At higher speeds - 20 / 30 and driving normally you don’t hear it at all. It’s only in the less than 8mph zone coming down a stop, do you hear it knocking away from the rear.

Any thoughts / suggestions just to put my mind at ease for now would be gratefully appreciated. The bill for the crossmember and some other bits im going to be feeling the effects of for a little while as it broke the Defender Piggy Bank, and just hoping it nothing too bad!

Thanks everyone and hope you’re all doing well!
 
Thank you so much for the advice above!

Really do appreciate it and it's a great list to go off.

Could some of the things on that list been caused theoretically by the removal / replacement of the rear cross member when they stripped off the old one and put the new one on?

Would they have had to drop / loosen / remove any of those bits to either make space for removing and fitting the new one - and then as mentioned - just not have tightened things up etc?

Really appreciate the replies / advice as always
 
Thanks Kev, that’s a good shout. Could this have happened with the rear crossmember replacement too? The timing of things is just strange!
nope unless your mechanic is a muppet!

Rear prop would not be removed for a cross member stubby or long replacement.
 
Could well be the A frame joint.
Could be the rear radius arm bushes (mechanic forgot to tighten them up).
Could be a top or bottom shock mount.
Could be a loose exhaust mount ...

If you can get underneath with a prybar/jemmy/big fat screwdriver you may be able to find the 'loose' thing.
What he said but start with the rear prop...
 
Could some of the things on that list been caused theoretically by the removal / replacement of the rear cross member when they stripped off the old one and put the new one on?

Most likely, all of them

Would they have had to drop / loosen / remove any of those bits to either make space for removing and fitting the new one - and then as mentioned - just not have tightened things up etc?

Yes
 
As slow speeds it sounds like the propshaft joints to me. If not a knock says its tie rodds or anti roll bar mounts or end joints, Last of all check the shockers as one might not be tight or have a dodgy bush in it. The simple cause may also be a moving rear exhaust box due to no mounting rubber.....
 
Back
Top