88 Mustang Gt Whine

[Joshua Deleon]

you guys normally probBly see this thread alot. Well I checked all over Google and couldn't find not 1 thread that had this problem. Well I have a 88 mustang gt. Smog delete. I put a new belt on it changed cap and rotor and plugs. Basically full tune up. Out of no where one day with the car idling. It has this squel that is annoying as hell. It's not the belt tensioner because I replaced that already. It's coming from the passenger rear. And when I go under the car in that area that's when it's the loudest. It's only when the car is warmed up. And if I give it throttle it goes away. It's not the throw out bearing because when I press in the clutch it Dosent go away. It's so annoying. Someone for the love of jesus help me with this problem.

 

[Mustang5L5]

Video of sound?

Honestly, if you can't pinpoint it with the car in person, it's going to be hard for us to diagnose as well. Pretty much just going to throw out random ideas here.

 

[FoxMustangLvr]

It could be a pulley. Do you have a smog pump delete pulley or anything like that? Typically in order to find out what's squeaking I'd take some WD-40 and start spraying a little on each pulley. When you squirt a pulley and the squeak goes away you've found the problem.

 

[Mustang5L5]

He states passenger rear area, which makes me think it's not accessory or fan related


Sent from my big ass iPhone 6 using Tapatalk

 

[FoxMustangLvr]

Oops, you're right, I didn't see the "rear" part. The sound could be traveling? Could it be a pilot bearing?

 

[jka]

Take the belt off and start it up and if the sound is still there but goes away when you give it gas.It may be the throttle body/ idle control valve making the noise.