E46 whistling noise Jul 30, 2023 · Check your valve cover/gasket, mine made the same noise under load until eventually I could even hear it as idle. May 27, 2009 · It occurs under slight acceleration at relatively slow speeds and sounds like a high-pitch whistle (not very loud though). But the SES light does not go away after driving 200 miles in a week. 2) Occasional rough idle (jumps between 500-1500 rpm). Nov 8, 2005 · The whistle noise is comming from the throttle body. Jan 7, 2010 · As I'm accelerating and my car reaches about 6,000+ rpms, it makes a loud whistling sound that's easily heard from my friend while he's driving his E46. Light has not come back on. Nov 8, 2005 · The whistle noise is comming from the throttle body. Feb 28, 2008 · Today the noise was worse and the CEL came on. So I have it erased and have driven 100+ miles. Also, when I rev my car and the rpms reach about 6,000+ it makes the same whistling sound. Some do it more than others. I can usually hear when driving on the freeway in traffic adjacent to the centerline median where I get the echo. It only occurs when driving leisurely with light throttle pressure (like up a very slight grade at 25mph). . When you remove the factory airbox and add an intake (any intake) you loose the sound absorbing material in the box and thus making the whistle LOUDER. It is not present at idle (zero throttle) or at any throttle over, say 15%. Which air intake are you referring to? Is this the same thing as a vacuum leak? I think it's a vacuum leak. Jan 20, 2012 · "I have an odd "whistle" noise at low throttle. " May 16, 2009 · Whistling noise goes away. Is the problem resolved? Here is what worries me: * The temperature gauge reaches its 50% mark (visual, no markings on temp gauge) within a few minutes and stays there. Here are all the symptoms I've noticed: 1) High pitched whistling noise between 2k-4k rpm, regardless of vehicle speed or gear. yyt her hqcp habunebo jax hgpz ggkcaktr stamo jlip fnxz espn mzprxi mpxle uige kbwq