theheff Posted July 31, 2012 Posted July 31, 2012 I've just picked up a new y pipe as the flexi is damaged and I'm getting a burning smell coming from under the car. it's not fitted yet. I noticed today that the exhaust is popping randomly at idle. The needle is jumping at all, it's literally just the noise. Am I right in thinking this is just being caused by the damaged flexi? Quote
rtbiscuit Posted July 31, 2012 Posted July 31, 2012 popping in the exhaust is generally down to waste fuel being burnt off in the pipes. it might be down to the hole, difficult to tell from a written message. Quote
theheff Posted July 31, 2012 Author Posted July 31, 2012 I tried recording it but it didn't come out very well. There is no consistency in the noise. I'm also get a clunk coming from what sounds like the bottom rear of the engine bay. I'm not sure if it's happening at the same time as the popping. There is no constancy in that either. It will not do it for 30 seconds to a minute then it might happen twice in 20 seconds. The car is idling fine and there is no movement when the popping or knocking happens, all the gauges are where they should be. Car is driving fine. Quote
Tarmac@TarmacSportz Posted July 31, 2012 Posted July 31, 2012 Some people pay good money for that noise No decrease performance wise ? Quote
theheff Posted July 31, 2012 Author Posted July 31, 2012 Nope, no change in the drive at all. It's the engine knock I've noticed recently that is the most concerning really. I think its too infrequent to be anything timing wise, but I'm stuck on what else could cause it. There are no issues on start up. I suppose it could just be the exhaust banging when it's popping Think I need to get the new y pipe on and see what happens then. Quote
Sam Mcgoo Posted July 31, 2012 Posted July 31, 2012 A damaged exhaust will cause a pop .Get it fixed then see how it is. Quote
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