miko_supra Posted September 22, 2006 Share Posted September 22, 2006 When the car is doing around 1500 2000 rpm and under load this sort of deep rattling, like a growl is coming from underneath the car. I've done a quick search but havnt found anything. Quote Link to comment Share on other sites More sharing options...
Supradan Posted September 22, 2006 Share Posted September 22, 2006 When the car is doing around 1500 2000 rpm and under load this sort of deep rattling, like a growl is coming from underneath the car. I've done a quick search but havnt found anything. not missing a dog are you:d Quote Link to comment Share on other sites More sharing options...
affney Posted September 22, 2006 Share Posted September 22, 2006 not 100% but sounds like iether your cat is on its way out or you have a gap or hole in the exhaust somewhere Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 24, 2006 Author Share Posted September 24, 2006 cheers for the reply. Quote Link to comment Share on other sites More sharing options...
tt red supra Posted September 24, 2006 Share Posted September 24, 2006 does this happen in every gear, while the engine is under load??? and does it vanish when you get above say 3500rpm... If so i have the same problem im hopeing its noting serious with the gearbox but my finger is pointed at a lightened flywheel, i did a search and i think this was the best i came up with..... Quote Link to comment Share on other sites More sharing options...
Nic Posted September 24, 2006 Share Posted September 24, 2006 It could be something as simple as an exhaust hanger that has come loose, causing the exhaust to resonate at a certain rpm or as complicated as a gearbox problem. It's very difficult to diagnose a noise from a description, see if you can get it checked out by someone who knows what they are listening for. Quote Link to comment Share on other sites More sharing options...
sdavies Posted September 24, 2006 Share Posted September 24, 2006 Sounds a little like when my CAT was on its way out (although it was about 2500rpm under load and although low growl had a tinny edge to it), chap at garage took a peek and the thing disintegrated. - ah well - decat it was Quote Link to comment Share on other sites More sharing options...
Daston Posted September 25, 2006 Share Posted September 25, 2006 I get a simular noise in all gears all the time although it isnt really noicable until it hits 5-6k. So far i have suffered no performance loss or anything dropping off so I am guessing its just a loose heat shield Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted September 25, 2006 Share Posted September 25, 2006 Failing the possible exhaust isuues causing the problem, it could be wheel bearings letting go Quote Link to comment Share on other sites More sharing options...
Scooby Posted September 25, 2006 Share Posted September 25, 2006 Does it change with the road speed or engine RPM? Quote Link to comment Share on other sites More sharing options...
Bob Posted September 25, 2006 Share Posted September 25, 2006 1st cat heat shield? Quote Link to comment Share on other sites More sharing options...
miko_supra Posted September 25, 2006 Author Share Posted September 25, 2006 Ok checked all the heat shields. they are all fine. its rpm related, not speed, and yes it occurs in all gears. It also disapears when i go beyond 2,500 ish rpm. I has a slight bell like sound to it too. from your replies i do think it is the cat. Can this be put into the tech section too any one? as i managed to find nothing like this in there, could be helpful to others. Quote Link to comment Share on other sites More sharing options...
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