is a rattling cat an MOT failure

[lofty]

took the cat off my williams for a de-cat and the middle bits are rattling around fairly noisily, if i put it back on for MOT will the rattling make it fail? (even if the emissions dont?)

 

[Chris n nic]

As long as it doesnt effect the emissions then you should be ok, but the rattling might well mean it aint going to be doing its job properly

Chris

 

[Valver'o'Death]

I was told that when your cat rattles its not working properly and will fail an MOT. When my valver had an emisions test with my Cat in that state it failed

 

[JAY172]

it can only fail if the emissions are above the reqd limits.a disintegrating cat will cause the engine to lose power and i bet it does your head in.

 

[lofty]

its gone now in favour of a scorpion stainless - was annoying as feck!

just weighing up my options pre-MOT