Mystery undercar rattles

EGG80X · Postby **EGG80X** » Sun Apr 15, 2007 7:37 pm

There is this annoying loud metal rattling sound everytime i hit a pot hole or a bump, sounds like a sheet of metal rattling...

I am still in a process of elimination..... tighten bolts and extra foam on the cai, wedged tight the radiator fan cover, also checked the header's heat shield and in the process of removing the heat shield just above the cat convertor

BTW its a NB8A

anyone else had experienced the same problem?

giro-pilot · Postby **giro-pilot** » Sun Apr 15, 2007 7:51 pm

is it the cat bang it with your hand :?:

Andrew · Postby **Andrew** » Sun Apr 15, 2007 8:15 pm

.....could be your brake pads moving around in the calipers.

Craig · Postby **Craig** » Sun Apr 15, 2007 8:22 pm

Broken rubber exhaust hanger perhaps?

dv8one · Postby **dv8one** » Sun Apr 15, 2007 9:06 pm

I have had the brake pads moving. See if it goes away under brakes.

I have also had my speedo cable come out of its clip that caused a rattle.

Brett_MX5 · Postby **Brett_MX5** » Sun Apr 15, 2007 10:26 pm

EGG80X wrote:There is this annoying loud metal rattling sound everytime i hit a pot hole or a bump, sounds like a sheet of metal rattling...
anyone else had experienced the same problem?

Yep, same thing with my NB8A

I've looked at just about everything and cant find out what is causing it, but it does sound like its coming from the rear of the car somewhere

Its not the exhaust or the heat shields

Craig · Postby **Craig** » Sun Apr 15, 2007 10:28 pm

Not a loose spare tyre/wheel jack is it?

Alex · Postby **Alex** » Sun Apr 15, 2007 11:21 pm

sometime my softtop bounces on the stoppers when it's down and i go over a bump, normally moving the window a bit so it's settled properly fixes this

Postby **Okibi** » Mon Apr 16, 2007 1:56 am

Rocks caught in the exhaust heat shields?

Daz 27 · Postby **Daz 27** » Mon Apr 16, 2007 7:51 am

Brett_MX5 wrote:
EGG80X wrote:There is this annoying loud metal rattling sound everytime i hit a pot hole or a bump, sounds like a sheet of metal rattling...
anyone else had experienced the same problem?

Yep, same thing with my NB8A

I've looked at just about everything and cant find out what is causing it, but it does sound like its coming from the rear of the car somewhere

Its not the exhaust or the heat shields

my car has the same rattle, it's the rear brake pads.
if you have a look you will be missing the retainer clips for the pads.

Garry · Postby **Garry** » Mon Apr 16, 2007 9:29 am

my car has the same rattle, it's the rear brake pads.
if you have a look you will be missing the retainer clips for the pads.

Or if it's an NB8B the retainer clips have fatigued over time and they no longer do their job.

Brett_MX5 · Postby **Brett_MX5** » Mon Apr 16, 2007 2:11 pm

Daz 27 wrote:my car has the same rattle, it's the rear brake pads.
if you have a look you will be missing the retainer clips for the pads.

I'll have another look when I get me car back from Mania

Thanks guys - even tho I didn't ask the original question :mrgreen:

EGG80X · Postby **EGG80X** » Tue Apr 17, 2007 10:21 am

thanks for the pointers guys

wot a nightmare, drove me nuts!!! couldn't find the source of the problem all weekend

so I drove upto mania last night and Dave and Daniel were pretty helpful!!! took us a good hour to found that rattle it turns out to be the rear muffler heat shield, it was probably cracked when my car was rear ended and it wasn't repaired.

Once again BIG THANKS to Mx5 Mania

ringo · Postby **ringo** » Wed May 09, 2007 12:54 pm

hey egg... long time no see !!

mate, you are worried about a squeak... COME ON !!!

glad to hear it got resolved mate, i have somehting similar in mine... I think there might be something in the suspension.... mabye mania can fix mine too !!

andrew

Boost · Postby **Boost** » Wed May 09, 2007 11:22 pm

Can you buy new pad retaining clips if they are destroyed?
I've got the same sound on my NB8A but havn't had a chance to search the for cause of the sound.