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#1
12-23-2015, 08:07 PM
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where can this sound come from? exhaust leak? Video!
Sound only happens under load...when car is cruising, no sound. Ideas? Thanks. Work done: Valve covers, intake mani gaskets, spark plugs, water pump, vacuum lines around the manifold (OSV area), and hoses. https://youtu.be/6oPs8iniGFs
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'02 E53 4.4i Topaz Blue '01 E38 Black '91 Prelude Last edited by tavo80816; 12-23-2015 at 08:59 PM. 
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#2
12-24-2015, 01:47 PM
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Any symptoms prior to the work you did? Any symptoms now other than the noise? With the engine running sparingly spray carburetor cleaner or starting fluid around the runners. If there is manifold leak the idle should change.
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 X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interiorDallas
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#3
12-25-2015, 07:15 PM
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No symptoms before the work. Thinking about this, I realized that even if there was a leak in the intake manifold, that would not create the exhaust sound.
Maybe the drivers side valve cover gasket didn't seat properly? The sound is only coming from the drivers side of the engine. Weird.
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'02 E53 4.4i Topaz Blue '01 E38 Black '91 Prelude
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#4
12-26-2015, 02:39 PM
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Check the work you did. A sound that loud should be easy to locate. Either use an auto stethoscope or anything metal. Put one end on the engine and one end to your ear. The closer you get the louder it will get.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interiorDallas
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#6
12-28-2015, 06:10 PM
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Quote:
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#7
12-28-2015, 06:10 PM
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Right, I don't hear a metal to metal sound, still works. Suggest a video taken moving around the engine bay with someone reving the engine. Hard to identify the sound from the cabin. Does the engine rev normally and hold a steady RPM at say 2500?
Since it wasn't there before your work and was there directly after your work and you didn't disconnect/loosen any of the exhaust system my guess is it is associated with the work you did.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interiorDallas Last edited by bcredliner; 12-28-2015 at 06:17 PM.
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#8
12-28-2015, 09:09 PM
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Here is another video.
The sound is only coming from the drivers side of the engine. https://youtu.be/QZwJ0wh-_lU
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'02 E53 4.4i Topaz Blue '01 E38 Black '91 Prelude Last edited by tavo80816; 12-28-2015 at 09:56 PM.
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#9
12-28-2015, 09:15 PM
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I didn't remove anything exhaust related, that's why I'm so confused. All I did was change the water pump, intake mani gaskets, valve cover gaskets, spark plugs and radiator hoses.
Car turned on the first try, but as soon as I pressed the gas, I knew that sound was not right. The car revs up normal and accelerates fine, it's just loud and abnormal. My wife drives the X5, she keeps bugging me to take it to an indy shop but I'm scared.
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'02 E53 4.4i Topaz Blue '01 E38 Black '91 Prelude
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#10
12-28-2015, 11:27 PM
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I think you need to check you spark plugs. Is it possible you didn't get some torqued down enough? To get that noise and not have done any exhaust work it is the only logical solution. If you take the coil covers off you may even be able to feel the compression/air surge. Keep us posted
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Dave S. Northeast 2003 4.6is 2005 E53 4.4 2003 E39 Msport(a REAL ONE!) 1959 Fiat 600
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