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[humbucker]

hi all

booked in for an mot on weds, i think the exhaust might need replacing as it blows a little bit on start up. advice needed in this dept, what route should i go down, genuine gm parts on my trade card i imagine but anyone got an idea of price or parts? something thats going to last a long time.

this is the existing one; of course i'd love to go down the irmscher stainless tailpipe route but not sure thats going to happen somehow!

[feeutfo]

 i found out after selling my old 99 cdx that the blowing on start up thing may well have been the secondary air pump( is that right,anybody?), blows air into the exhaust on start up for emissions or cat warming or something like that.
Anyway if thats the case, your exhausst may be fine. Someone will advise further i am sure.  

[humbucker]

i found out after selling my old 99 cdx that the blowing on start up thing may well have been the secondary air pump( is that right,anybody?), blows air into the exhaust on start up for emissions or cat warming or something like that.
Anyway if thats the case, your exhausst may be fine. Someone will advise further i am sure.  

my 2ndary air pump is playing up but ive got a replacement for that and this is definitely the exhaust. thanks for the heads up anyway  

[bigdods]

Double check to be sure. I was convinced my exhaust was blowing on my old 2.5 , it was very chuffy and noisy. Turned out to be a split rubber pipe at the front of the engine, nothing to do with the exhaust, but it did sound exactly like an exhaust blow.

[feeutfo]

blowing ex will blow all the time in my experience. The fact that it stops when warm suggests sa pump. But you sound pretty sure. Albatross and others has just had an ex. made for fair price. Pics on here, worth a search.

[Entwood]

Could it be the exhaust manifold gasket ??  These have a tendency to only blow when cold .. usually as a "ticking" noise .. especially if pattern parts have been used.

These are the ones changed at the Lakes .. major difference you'll agree ...

[JueV6]

I did mine while the lakes meet was on. It blew when cold but as soon as it warmed up it stipped.

Mine was worse the on in entwoods pic.

[humbucker]

maybe i'll get a surprise at the mot test then when they say 'this exhaust is in good nick' hehehe

thanks for the advice, i'll see what they say on weds and report back. fingers crossed she'll sail through...

[JueV6]

Good luck mate

[Alex Wood]

I went for a Jetex cat back system, v pleased with it except it vibrates when I put the power on round a left-hander, must get round to jiggling it around and changing the mounts. Sounds lovely the rest of the time though. The rubber pipe on my air cutoff valve split the day after I fitted the new exhaust. I heard it and thought, "Can I really be that incompetent?"

[ians]

maybe i'll get a surprise at the mot test then when they say 'this exhaust is in good nick' hehehe

thanks for the advice, i'll see what they say on weds and report back. fingers crossed she'll sail through...

ask them about it.... after they have passed it

[feeutfo]

a note re mot's to "anyone" reading this. mot tests can be taken WELL before the expiry date of your current crtificate. thus giving time to rectify faults while the car is still legal to drive, as you will still have time left on your current cert. if it fails.
   Sorry, one of my pets that one.
Hope helps.

[trebor]

a note re mot's to "anyone" reading this. mot tests can be taken WELL before the expiry date of your current crtificate. thus giving time to rectify faults while the car is still legal to drive, as you will still have time left on your current cert. if it fails.
   Sorry, one of my pets that one.
Hope helps.

I was told that with the new system, that if you have an MOT test and your car still has weeks, even months on the current certificate, and it then subsequently fails, then your car has no valid MOT!

[Entwood]

a note re mot's to "anyone" reading this. mot tests can be taken WELL before the expiry date of your current crtificate. thus giving time to rectify faults while the car is still legal to drive, as you will still have time left on your current cert. if it fails.
   Sorry, one of my pets that one.
Hope helps.

I was told that with the new system, that if you have an MOT test and your car still has weeks, even months on the current certificate, and it then subsequently fails, then your car has no valid MOT!

This is correct .. if a car fails an MOT it is considered unroadworthy, and the computer will know this.. it is also illegal to drive an unroadworthy vehicle, and as you have just been told it's unroadworthy  you can't really argue !!! Old system where it was just a bit of paper you could "lose" the fail certificate .. computer based system .. you can't . Your insurance is also invalid .. and the insurance company can get the MOT information quite easily ..

[HerefordElite]

a note re mot's to "anyone" reading this. mot tests can be taken WELL before the expiry date of your current crtificate. thus giving time to rectify faults while the car is still legal to drive, as you will still have time left on your current cert. if it fails.
   Sorry, one of my pets that one.
Hope helps.

I was told that with the new system, that if you have an MOT test and your car still has weeks, even months on the current certificate, and it then subsequently fails, then your car has no valid MOT!

This is correct .. if a car fails an MOT it is considered unroadworthy, and the computer will know this.. it is also illegal to drive an unroadworthy vehicle, and as you have just been told it's unroadworthy  you can't really argue !!! Old system where it was just a bit of paper you could "lose" the fail certificate .. computer based system .. you can't . Your insurance is also invalid .. and the insurance company can get the MOT information quite easily ..

but can can still drive to and from the MOT test station or garage that is doing the remedial work???