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Model specific boards => Golf mk3 => Topic started by: vw_golf_nutter on 09 September 2013, 17:33

Title: is my cat gone?
Post by: vw_golf_nutter on 09 September 2013, 17:33

hi all,
my cars a 2.0 cabrio and today its started making a rattly noise when its warm and at low revs like when i pull away. sometimes it sounds crackly. it doesnt do it all the time just started on and off today.
do you think this sounds like the cat, sounds like its coming from under the handbrake.

if so is it worth fitting a de-cat pipe? its £50 for the part. thinking its cheaper than a new cat. but does it fail MOT on emissions if you do this?

thanks

Title: Re: is my cat gone?
Post by: Foreveryoungaus16v on 09 September 2013, 17:44

Yes it will fail emissions and will give you no gain benefits.  Could be heat shield is

lose which is causing rattle like mine is atm. I am about to replace the whole system

for a Jetex one. Not cos of the rattle but because of the quality.

Title: Re: is my cat gone?
Post by: vw_golf_nutter on 09 September 2013, 18:15

i dont have a heat shield, it fell off so i know its def not that. so why would people put a de-cat pipe on if it will fail MOT?

Title: Re: is my cat gone?
Post by: Foreveryoungaus16v on 09 September 2013, 18:25

They put CAT on just before MOT and then take it off after. Or they know an MOT

tester. Most people put it on for the the noise or because they think it is a

performance enhancer.  I was going to de cat mine at one stage but after sound

advice will not be. The standard CAT is not that restrictive anyway.

Title: Re: is my cat gone?
Post by: vw_golf_nutter on 09 September 2013, 21:57

ok thanks  :smiley:

Title: Re: is my cat gone?
Post by: Bellend on 09 September 2013, 22:27

Try to goad it back with treats. Whiskas is a personal favorite or my cat.

Title: Re: is my cat gone?
Post by: boneybradley on 10 September 2013, 10:57

whats a cat and how does it affect getting an m.o.t??  :lipsrsealed:



 :whistle: :whistle:

Title: Re: is my cat gone?
Post by: Len on 10 September 2013, 12:56

£50 for a CAT? Cheapo!

Look for other things first like the middle exhaust mounts as they go slack and then the pipe bangs on a crossmember

Title: Re: is my cat gone?
Post by: gazareth on 10 September 2013, 22:10

I would say a crackly noise is the engine pinging. if it does it when warm and at low revs in a high gear.

Title: Re: is my cat gone?
Post by: Len on 12 September 2013, 12:37

Do you mean PINKING?

Title: Re: is my cat gone?
Post by: gazareth on 12 September 2013, 22:27

Quote from: Len on 12 September 2013, 12:37

Do you mean PINKING?

nope I definitely meant pinging.