My marathon has a turbo

[dan161]

Ok so it really doesn't have a turbo. Its a 90 marathon and when its slowing down or winding down I believe that on the passenger side somewhere there is a whistling sound. It sounds kinda like a turbo whistling. I have looked everwhere and can't seem to figure out where its coming from.

I don't know if its coming from the crank seal or something to do with the cooling fan or where for sure it is. I have jacked up rear und and it does it then also so its not just when its on the ground. The rearend spins freely with no squeeling or sounds coming from brakes or any other area of it.

I know its pretty hard to diagnose on the an internet forum, but I just thought maybe somebody had already had a similair issue at some time. Thanks for any advice anybody has.

[icyveins]

Originally Posted by dan161

Ok so it really doesn't have a turbo. Its a 90 marathon and when its slowing down or winding down I believe that on the passenger side somewhere there is a whistling sound. It sounds kinda like a turbo whistling. I have looked everwhere and can't seem to figure out where its coming from.

I don't know if its coming from the crank seal or something to do with the cooling fan or where for sure it is. I have jacked up rear und and it does it then also so its not just when its on the ground. The rearend spins freely with no squeeling or sounds coming from brakes or any other area of it.

I know its pretty hard to diagnose on the an internet forum, but I just thought maybe somebody had already had a similair issue at some time. Thanks for any advice anybody has.

could it be something rubbing?
something you can only hear when you are not on the gas with the sound of the engine over powering the whistle? exhaust?

[dan161]

It could be but I sure can't seem to find anything rubbing. Its almost like its coming from the cooling fan on the passenger side of motor, but I'm not seen anything there that concerns me.