Darkstar Posted June 27, 2018 Report Share Posted June 27, 2018 Every time I start the car when it's cold, that is engine oil cold not outside air temperature, I get this horrible raspberry noise from my exhaust but as soon as oil is warm and I stop and restart the car it's gone and sounds perfect. My thoughts is there is some valve in the exhaust either open or closed at start up. Not a problem just curious. Link to comment Share on other sites More sharing options...
Greenman Posted June 28, 2018 Report Share Posted June 28, 2018 10 hours ago, Darkstar said: Every time I start the car when it's cold, that is engine oil cold not outside air temperature, I get this horrible raspberry noise from my exhaust but as soon as oil is warm and I stop and restart the car it's gone and sounds perfect. My thoughts is there is some valve in the exhaust either open or closed at start up. Not a problem just curious. You’ve probably got a leak on one of the joints that seals when the exhaust gets hot? Link to comment Share on other sites More sharing options...
Darkstar Posted June 28, 2018 Author Report Share Posted June 28, 2018 Do you think that will be a problem for my MOT. Link to comment Share on other sites More sharing options...
Saxosim Posted June 28, 2018 Report Share Posted June 28, 2018 Take a video if you can as curious to hear it? Link to comment Share on other sites More sharing options...
Boxob Posted June 28, 2018 Report Share Posted June 28, 2018 6 hours ago, Darkstar said: Do you think that will be a problem for my MOT. If it is a leak(s) on a joint(s) then, yes, potentially it is an MOT problem. It will adversely affect the emission readings. A couple of years ago my car failed it's MOT on emissions. The joints were remade with exhaust cement and no problem since. Link to comment Share on other sites More sharing options...
Terryg Posted June 29, 2018 Report Share Posted June 29, 2018 You've been giving it the beans a little too often. Over to you @Menoporsche Link to comment Share on other sites More sharing options...
Darkstar Posted July 2, 2018 Author Report Share Posted July 2, 2018 I tried to record it but it did not sound on the recording like it does in real life. Link to comment Share on other sites More sharing options...
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