Noisy diff??
Noisy diff??
Author
Discussion

mistermagoo

Original Poster:

62 posts

194 months

Saturday 26th February 2011
quotequote all
Hi guys can anyone help in finding out what my problem is? i have a 98 4lt with a gkn diff

In low speeds i.e. when pulling up to a roundabout and i put slight hand on the steering wheel in either direction i get a knocking noise which i can also feel through the seat, it is like dry cogs not meeting correctly it also does it in reverse to? so before i get the diff rebuilt at great cost just wondering if anyone else has experienced this before? someone said it could be cv joints?

haircutmike

22,511 posts

235 months

Saturday 26th February 2011
quotequote all
Or diff mounting bushes,

Or loose bolts holding the above rear bracket, (which is a right PITA to get to),

Or prop uj's,

Or loose rear prop to diff bolts.

Simples!

deeen

6,413 posts

276 months

Saturday 26th February 2011
quotequote all
what he said, or diff oil change (always check cheapest options first) or rear wheel bearing? or wheel loose?

mistermagoo

Original Poster:

62 posts

194 months

Saturday 26th February 2011
quotequote all
O that many choices just thought it was the diff because of the cog feeling, so what is the best way to eliminate each problem?
Cheers

haircutmike

22,511 posts

235 months

Saturday 26th February 2011
quotequote all
deeen said:
what he said, or diff oil change (always check cheapest options first) or rear wheel bearing? or wheel loose?
O/T. Nice car Deeeeeen cool.

deeen

6,413 posts

276 months

Saturday 26th February 2011
quotequote all
Cheeeeeeeeers.

mistermagoo

Original Poster:

62 posts

194 months

Wednesday 2nd March 2011
quotequote all
anyone else??

roysum

961 posts

220 months

Wednesday 2nd March 2011
quotequote all
mistermagoo said:
anyone else??
Drive shaft couplings tight ?

Johno

8,593 posts

313 months

Wednesday 2nd March 2011
quotequote all
Only other thing is the reference to 'steering wheel', not sure this would be the first place I'd feel for Diff related issues, although I'm sure you'd got some sense of it . .

Through the seat yes,

I'd also suggest changing oil in diff and gearbox, both easy enough and cheap to do. Do one at a time if you really want to save time/money/identify the culprit.

One complete left field tangent thought, how's you steering column bearing and steering UJ's? Do you have play in the wheel? Ball joints, wishbone bones etc . .

I've got 80k miles on my diff with varied use, most of it relatively enthusiastic and I've no issues, they're generally reliable although given the nature of the car etc they do fail and wear out . .

haircutmike

22,511 posts

235 months

Wednesday 2nd March 2011
quotequote all
roysum said:
Drive shaft couplings tight ?
Dam!

I missed that.