It's whistling lol

[97Power_Ranger]

I have a 97 ford ranger 2.3 5speed, Im not sure whats causing the sound but at idle something in the engine bay is causing a high pithced whine/wistle/screech its just steady. What could it be?

It's been like this for a while its just getting annoying.. although I rarely hear it because I always have the stereo cranked.

 

[BeaverBanker]

Take off you belt and start it up. Its more the likely a bearing

 

[ran429]

i bet you have a broken, dried out and cracked or unplugged vaccum line.
There is a few differently colored hard vac lines coming from the left side looking under the hood (battery side) those lines get fragile after awhile and break easy.

 

[97Power_Ranger]

i bet you have a broken, dried out and cracked or unplugged vaccum line.
There is a few differently colored hard vac lines coming from the left side looking under the hood (battery side) those lines get fragile after awhile and break easy.

Thats what my friend just told me it might be, I hope its that and not a bearing, I looked for vac lines yesterday with no luck with finding one that was bad.

 

[ran429]

Get yourself a cheap 'Propane" torch. NOT A MAP GAS TORCH! And open the valve on a low setting, with the truck running and the torch not burning follow the lines slowly, go around the intake manifold as well in case its a broken intake manifold gasket too, when you come to and area of the lines and the truck engine revvs way high and fast you will find your vaccum leak.

WD40 works too but its messy and only shows you the opproximate area of the leak.

 

[fordwheelinman]

Throttle body cleaner works the same way.

 

[scotts90ranger]

I had that for a while, I think it was the water pump, easy enough change...