High pitched squeal from engine

S

sharpright

Member

Oct 28, 2020

9

1

13

Mars

Apr 1, 2021

#1

• Apr 1, 2021

• #1

4.6 2v making a high pitched squeal which I think is coming from the passenger front side pulleys. With the engine turned on I can’t see the bottom left pulley moving at all. I turned the AC on for a short time and it blew cold air. Is the bottom passenger side pulley the AC pulley? I don’t understand how my belt hasn’t melted or burnt out yet.

 

Last edited: Apr 1, 2021

S

sharpright

Member

Oct 28, 2020

9

1

13

Mars

Apr 2, 2021

#2

• Apr 2, 2021

• #2

I have been reading that when the pulley seizes the metal pieces end up in the AC system. If I replaced the compressor or pulley and left it unplugged is there any harm in driving the car until I can flush out the AC system?

 

D

Deleted member 38176

Apr 2, 2021

#3

• Apr 2, 2021

• #3

Spray some WD40 on the pulley. Dont over-examine the problem

 

1low03gt

20+ Year Stangneter

May 24, 2004

708

11

38

Cold Hell,Ontario,Canada!!

Apr 3, 2021

#4

• Apr 3, 2021

• #4

Sounds like a bad bearing on a idler pulley. Got a pic of the pulley. In the past I just replaced the bearing. Pretty simple.