2003 Ford Expedition "high pitch noise accelerating" Questions

the rpms close to or more than 1 on the tach. Does anyone know what could cause this? Check for a vac leak. Check all small vac lines and listen for high pitch whistling noise. Ir crack in intake hose

...high pitch metallic then chance's are it's a rod or lifter in the engine.If the noise is a thumping dull noise you have a bad crankshaft.My guess is the torque converter because you said the ...

High pitch noise when decelerating Stops when brakes or accelerator are used and no sound when idling. Slight scraping sound under acceleration but used to be louder before the high pitch sound ...

...for any reason my Tahoe makes a high pitched noise until it downshifts. Does that mean my transmission is going out? I had that sound in my Acura. The transmission was low on oil. Hope this

...noise however with moderate acceleration high pitched squealing sound coming from rear. No other apparent problems. had al breaks changed, no resolution nothing to do with breaks sounds more like a u ...

...causing this. I had a high pitch noise, didn't sound like it came from the "underside". Turns out it was one of fans that had little chips in the blades? My Audi dealer replaced it, and it's fine

...high pitched squeal. When I accelerate you can hear it more, but sometimes that noise is still there when I am moving but not hitting the gas, but not as often as when i accelerate, but it is still ...

high pitch noise like a powerstering pump When does this happen? When you're turning? When the car is cold? Under acceleration? I need more info before I can make any suggestions. if this is a 3.3l ...

...high pitch noise Hyundai i30 2011 accelerating, car goes ok, slowing down, braking is ok it's when I 'roll' to slow the car I hear a small 'crying' high pitch ...

...high pitch noise but when I slow down or stop it goes away. What is the noise check condition of drive belt and check tension of the belt as it may be slipping under load at revs. I had a similar ...