I want to thank you but it is not a transmission problem.
I service and check fluids constantly, fact is I am anal where it comes to this.
The best I can guess is the Fuel pump but what bothers me is that when I put the car in park of neutral and rev the motor the sound is still there. Only when in gear and under acceleration, even slight acceleration it stops. Otherwise the car runs like a champ, no bad shifts, no hesitation, no nothing other than this insane noise!
I live in Rochester, NY and the car has never seen snow or salt BUT since the weather has been good I took the car out the other day.
The noise was gone. But I know it will rear its head again.
No, I do not smoke anything just in case you are wondering. The noise is real others have heard it but have no clue.
I have one that may stump the best but I hope not!
I have a 2000 3.8 V6 Auto with 64,000 miles. Car runs great, great condition, no problem at all with anything EXCEPT:
I just starting hearing a resonance noise/hum but only in the passenger compartment, it is not coming from under the hood. It happens a few minutes after I start the motor and whether the motor is hot or cold does not matter. I have run 150 miles @ 75 mph or 10 miles, same sound, same symptoms.
The resonance noise/hum stops but ONLY when I am in gear and under acceleration, even slight acceleration but comes back when I slow down and sit at idle at a light. Once I hit the gas it goes away. Sometimes it is a low hum and other times it is very noticeable.
NOW, If I put the car in neutral and rev the motor the sound does NOT go away BUT once I put it in gear and accelerate its gone until I slow down again.
Vacuum Leak on the tranny under the floor shift console?
Sending Unit in the tank?
It is not exhaust?
I cannot tell where this is coming from?
The only thing that has been a problem is the sending unit in the gas tank it does not give me an exact reading of fuel at the gauge.
Please give me some clues?
Tuesday, November 10th, 2009 AT 4:08 PM