Giles Clayton
Member
- Posts
- 57
- Location
- Bedford
Hi forum, I am scratching my head over a rear end noise and would like some ideas…
My 2003 TD4 started rumbling from the rear around 2 weeks ago, it sounds like a badly worn wheel bearing. The noise increases with speed but does not change when I turn or go either way around a roundabout. It also quietens considerably at bang on 50 mph. It is slightly louder under load.
I put it on axle stands and checked the wheels for bearing rumble or lateral movement, nothing. I checked the carrier bearings on the prop and they had some play so I fitted new ones. The noise was unchanged! A knowledgeable friend insisted it was the diff so today I fitted a good used one and new diff mounts (as these can also cause problems). The noise is still there!
I have had a good look at the viscous coupling (when I changed the carrier bearings) and it looks in good condition. The rear wheel bearings seem fine, the drive shafts seem fine, as far as I can tell the viscous unit is ok and nothing is making contact and rubbing any moving parts.
Any suggestions where I should check next or if I’m missing something obvious? The noise is really loud and driving me mad!
My 2003 TD4 started rumbling from the rear around 2 weeks ago, it sounds like a badly worn wheel bearing. The noise increases with speed but does not change when I turn or go either way around a roundabout. It also quietens considerably at bang on 50 mph. It is slightly louder under load.
I put it on axle stands and checked the wheels for bearing rumble or lateral movement, nothing. I checked the carrier bearings on the prop and they had some play so I fitted new ones. The noise was unchanged! A knowledgeable friend insisted it was the diff so today I fitted a good used one and new diff mounts (as these can also cause problems). The noise is still there!
I have had a good look at the viscous coupling (when I changed the carrier bearings) and it looks in good condition. The rear wheel bearings seem fine, the drive shafts seem fine, as far as I can tell the viscous unit is ok and nothing is making contact and rubbing any moving parts.
Any suggestions where I should check next or if I’m missing something obvious? The noise is really loud and driving me mad!
