Strange noise?

[wilk1]

I am hearing a moderately high pitch hum when the explorer is turned on, eminating from the driver's sised back tire. Any ideas what this could be? It's a 91' 4x4 AT EB, and the 4x4 just recently stopped working again. I am wondering if this could have anything to do with it.

Thanks,

Jason

 

[CAC91]

It sounds like the fuel pump to me. Thats normal.

 

[wilk1]

Thanks Chris, just wondering, got it a couple weeks ago and I never could figure out what the noise was. Is it normal to hear the noise throgh the radio as well. I am assuming that it is the pump because when I accelerate I can hear it as long as the radio is off (the sound comes through the speakers).

 

[bluescat]

So is it coming from the tire and the speakers at the same time? If your 4WD isn't working check that first.

 

[wilk1]

Well, as usual, I haven't clarified what is going on. I hope this helps... the sound is coming continuously from the driver side rear tire, and can only be heard outside of the car. It is like a high pitch hum that never stops as log as the car is on. The second sound is coming from the radio speakers but is only audible when I accelerate and only when the radio is off. Kinda strange I admitt, but I'm hoping to figure it out before I go crazy. It's the little things that make the drive so much better .

 

[91xltTerd]

It is your fuel pump. Mine did ever since it was new until I put a new pump on it. Now it has a different noise.