i need some help from anyone and lexus has no idea whats wrong. when i press the gas pedal and as the car starts to accelerate a whistling or hissing sound is coming out of the car. it only happens when the car is in drive and moving. nothing when the car is still and in park/pushing on the gas. please help me out here.

 

vaccum leak? that would be what mine was.

 

are the windows rolled up all the way? hehe sorry sometimes you gotta expect simple solution.


My old neighbor took her mercedes to the dealership two times to check out a knocking noise that she felt from under her seat when she made turns. TWO times and they didn't see any probems. One day I was just joking and said "did they look under your seat??" I put my arm under the seat and there was a full bottle of water.... Obviously it was rolling from side to side slamming into the opposite side when she turns..

If I didn't find the bottle of water and bring it up with great suprise and excitement I could pretended like I actually had to do hard work and I could have charged her some jacked up mercedes hourly rate... Fix the problem in a few minutes and charge her for 4 hours. haha

 

vacuum leak from where though? exhaust system? or a vacuum hose?

 

oh yeah i checked the simple stuff first and nothing. im kinda of scared because it always makes noise now every time i press on the gas.

 

oh you got the whistling thing when you accelerate. my cars been doing that for a while. never checked on it. lol. does it especially when i'm flooring it.

 

my old car did that but it was something wrong wit the after market cd played that was causing the speakers to make a really high pitched whistle or more of like a squeal when i was accelerating.

 

hmm... i got a stock deck and only two of the speakers work haha. i know i got some wind sneaking in somewhere on my driver side window but the sound doesn't seem to be coming from there. more like from the engine.

 

I don't know why every IS has wind noise at the drivers window, but they all do. Mine is further influenced by the drivers window sagging forward slightly. I need to find out if there is nylon inserts in there that ride the track that I can replace.

 

are you for really about the speakers?

 

yea mine has wind noise at the drivers window too..doesnt bother me that much though..easy solution = roll down windows or crank up the musicccc!!

 

Maybe I am spoiled by having a rock solid SC400 in the driveway as well, but you shouldn't have to deal with wind noise that is that annoying in a Lexus.

 

I discovered the noise is the side view mirrors where the space is for them to be "tucked in". Some sort of a spacer or silicone will fix it... I'll letcha know how it works. But I am certain it's the mirrors. If I cover the crack on the front, the whistling stops.