Front end squealing

Joebone

New member
Joined
Oct 28, 2020
Messages
4
Location
Dallas
I have a horrible squealing sound coming from what seems to be the front end. It starts above 10mph and increases in frequency with speed. The only thing I know is it not the brakes. Two different shops have been unable to replicate the sound once they get the vehicle up in the air. I am getting desperate and any advice is greatly appreciated.
 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,899
Location
Coronado, CA
Yo Joe,
  • Power Steering or Accessory Belt Squealing
  • Check belt for proper tension or glazing. For C-II pump, the pump would be damaged due to excessive fluid temperatures of 149°C (300°F) or higher. Dark fluid with a burnt smell will confirm.
  • TIGHTEN or REPLACE belt as required. REFER to Section 03-05.For CII pump, REPLACE pump and PURGE old fluid. ADD Motorcraft MERCON ® ATF XT-2-QDX or MERCON® equivalent.
Drive Belt squeal is an intermittent noise that occurs when the drive belt slips on a pulley during certain conditions such as: engine start-up, rapid engine acceleration, or A/C clutch engagement.
Drive belt squeal can occur under the following conditions:
  1. If the A/C discharge pressure goes above 2895 kPa (420 psi). This can occur if:
    1. The A/C system is overcharged.
    1. The A/C condenser core airflow is blocked.
    1. The fan blade (8600) is not engaging fully at idle.
 

chrlsful

Member
Joined
Oct 13, 2009
Messages
89
Location
S. Amherst, MA 01002-1827
if it can't B reproduced @ garage, just like da doc's, its hrd to diagnose. For us, remotely, may B even tougher. Try'n locate exact place/source. Some take a 1, 2 ft length of hose, put it to the ear'n move the other end around to listen. B careful of moving parts, they can hurt...
Drive by some1 at curb side? We would sit a guy on the hood some times...
 

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