Hmm... sounds like a vacuum leak of some sort?Originally Posted by mkaareng
-Artem
Today was the first day I had to scrape my windshield, and since this is North Dakota, it won't be the last. It was approximately 25 to 30 degrees this morning and I noticed a high-pitched whine coming from my engine at more than 2500RPMs. It sounded just like a turbo, but last time I checked I didn't have one under there...
It's a whistling sound, and rises quite dramatically at above 3,500RPM.
-Martin
Hmm... sounds like a vacuum leak of some sort?Originally Posted by mkaareng
-Artem
fluids are thicker when cold, I would venture the power steering or transmission pump if its an automatic. You dont want to rev it over 3k rpms when cold.
95 E34 530I V2.37
===========
Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
alternator noise? through raido
one of the belt rollers dried out and pissed off at the cold?
all america wants is cold beer warm cat and a place to take a poop with a door on it
I have the same thing in my 7 and am trying to hunt it down. I know what you mean, nothing at idle and aroudn 4,000 mine starts coming out of the hole big time.
Do you have rough idle sometimes? I think it may be a vacuum leak or intake leak of some sort, thats the least of my concerns right nwo but if I figure it out then I will let you know!
Mine is a manual. Thanks for the help. Vacuum leak sounds plausible.
-Martin
If its a vacuum leak, that becomes louder as you give it more throttle i suggest inspecting the hoses that go up to the throttlebody and possibly the ICV lines... Check the airbox and see if anything cloged up in there. (If you havent done so before)
-Artem
Double check to make sure there's none of [urlhttp://members.aol.com/blwn2kgt/images/supercharger-7-re.jpg]these[/url] hanging around the engine bay...Originally Posted by mkaareng
-Trevor Ely
'88 535is
'95 M Sport 540i (1 of 200)
'91 M5
I think this: [urlhttp://members.aol.com/blwn2kgt/images/supercharger-7-re.jpg]these[/url]Originally Posted by MTechnik540i
shouyld be like this: http://members.aol.com/blwn2kgt/imag...arger-7-re.jpg these
Ralph Mendoza Jr. - Long Beach, CA