2000 Ford Explorer Whining noise

Have you opened the hood to see if you can locate the noise? Also, have you removed the serp belt to see if it stops? NOTE: IF YOU REMOVE THE BELT, ONLY RIN THE VEHICLE FOR A FEW SECONDS TO SEE IF THE SOUND IS GONE. IT WILL OVERHEAT.

Let me know what you find.

Joe

You cant hear the noise while in park,not even if u raise the rpm,I only experience it while driving.As long as I dont go over 30 mph I dont hear the noise,and if im driving on the highway,if I drive over 60 mph I dont hear the noise.I was told that it might be the smog pump,problem is there is no smog pump that i can find.Ive checked all the u-joints I had the tranny checked by ford and it didnt show any codes except the TPS and an open circut which i have not found.But I still havnt given up yet. I'm going to check all my vacuum lines today with a propane torch(not lit of coarse)

Let me know what you find.

Joe

ive checked all my vacuum lines,most of the lines are that new stiff plastic lines,they are all good,plus there is no vacuum canister on a 2000 ford 4x4.I realy wanted to solve this problem myself,but it look like im going to have to take to a ford dealership. Thanks for the advise.

If you hear it for 10 to 12 seconds after you stop, it can't be anything with the drive line. Let me know what you find. After thought... you're not hearing the clutch fan engaging are you?

I thought it might be the clutch fan,but when the engine is off and i manualy spin the fan it wont spin a half revolution.I will change it today,but seriously doubt that's it.I hope it is that simple.I used to b a mechanic,bk when cars and trucks were simple.ive already replaced the tentioner pulley and one vacuum hose.

That is the only thing I can think of. If the engine runs cool at highway speeds, what else could it be.

Let me know if it takes care of the problem. Even though you can only spin it half a turn, it still can be bad.

Joe

PS: I miss the old days too.

Sorry i didnt get back sooner its been hetic ,Anyway Thank you so much,You hit the nail on the head first time around,and i can tell that you know what your talkin about.Once Again,Thank you so much for your help in this.

You are very welcome. I'm glad it's fixed. Let us know if you have questions in the future.

Take care,
Joe

I sure will,cuz I like saving as money as I can,I'm a doi ti your self kinda guy.

We would get along well. Like you, I try to save. My wife on the other hand...