Clunk Clunk
Author
Discussion

deadmau5

Original Poster:

3,197 posts

209 months

Sunday 10th October 2010
quotequote all
Recently, my car (MR2 mk3) has been making a noise.

It happens when I brake firmly, then the clunk happens again as soon as I press the accelerator. I can brake, the noise happens, then I lift off and can free-wheel for a few seconds, but it won't make the clunk until I accelerate.

The noise is coming from behind me, so either engine bay, brakes or suspension.

I replaced the brakes and pads all round about a month ago and they were fine, and then about 3 weeks ago I had the clutch changed. The noise has been happening since I had that done, and it's definitely getting worse.

Anyone got any ideas what it could be, before I have to book it into the garage and take time off to get there etc.


maniac0796

1,292 posts

195 months

Sunday 10th October 2010
quotequote all
If you let off the throttle at high revs, does it do it? Or if you release the clutch? Could be an engine mount if so.

Otherwise, I'd be looking at springs and dampers. Not sure what suspension set up MR2's have though.

Just realised you said you've had the clutch changed. Have they done up the gearbox mounts properly? Also, check the drive shafts for freeplay.

Edited by maniac0796 on Sunday 10th October 15:13

deadmau5

Original Poster:

3,197 posts

209 months

Sunday 10th October 2010
quotequote all
Pretty sure it's not springs and dampers because I've tried bouncing it up and down with my hands and there's no noise what so ever.

A pretty important point I forgot to mention, is that there is a bang/clunk/crash when I go over a major bump in the road.

snoopstah

391 posts

252 months

Sunday 10th October 2010
quotequote all
Loose wheel? I had something similar about a week after getting new tyres fitted, it would clunk each time you braked or accelerated. Guess the wheel was shifting very slightly eek

Tightened up the bolts (none 'loose', but all not tight enough) and all was fine. Certainly stopped me ignoring that warning you get on the invoice that suggests you check them a few days later!

gog440

9,298 posts

219 months

Sunday 10th October 2010
quotequote all
Anti roll bar?
I once had this on my focus, was only under certain situations when one corner of the car was under load. They lifted the car to look couldnt find anything wrong, it was only when they checked it with weight on the suspension that it becaime clear that the bolt in the arb was working slightly loose and it was only visible under load.

deadmau5

Original Poster:

3,197 posts

209 months

Sunday 10th October 2010
quotequote all
snoopstah said:
Loose wheel? I had something similar about a week after getting new tyres fitted, it would clunk each time you braked or accelerated. Guess the wheel was shifting very slightly eek

Tightened up the bolts (none 'loose', but all not tight enough) and all was fine. Certainly stopped me ignoring that warning you get on the invoice that suggests you check them a few days later!
Not a loose wheel, I went round and checked them all.

zeppelin101

724 posts

221 months

Sunday 10th October 2010
quotequote all
Check the droplinks.

mattmoxon

5,026 posts

247 months

Sunday 10th October 2010
quotequote all
zeppelin101 said:
Check the droplinks.
yes this could be the problem.

deadmau5

Original Poster:

3,197 posts

209 months

Sunday 10th October 2010
quotequote all
zeppelin101 said:
Check the droplinks.
It will make the noise when I am moving away from a standstill so I can't imagine that would cause them to move much, especially when moving away with the wheels facing forward.

I may be talking bks though.

Edited by deadmau5 on Sunday 10th October 16:03

zollburgers

1,285 posts

212 months

Sunday 10th October 2010
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Does the gear stick also wobble? Could be an engine mount if so? But I'm not a mechanic so I could be super wrong.

Chiswickboy

549 posts

217 months

Sunday 10th October 2010
quotequote all
Check that all the engine mounts are ok and all the bolts / nuts are done uptight on the engine to gearbox. Also take a spanner to the suspension nuts / bolts.

Did the brake caliper pistons move back smoothly when the pads were changed? It could be a sticky caliper.

bazking69

8,620 posts

219 months

Sunday 10th October 2010
quotequote all
Engine mount or exhaust mount bracket?