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Why does your car engine emit a loud high-pitched screeching or squealing sound when accelerating on cold rainy mornings?
Every time I start my vehicle on a freezing damp morning and press the gas pedal a deafening squeal comes from underneath the front hood for thirty seconds then goes quiet. What hardware component is slipping?
D
DriveSafe
asked 5d ago · 10 rep
1 Answer(s)
0
That loud high-pitched squeal is caused by a worn-out slipping serpentine accessory drive belt or a failing belt tensioner pulley assembly. Cold damp air reduces the immediate friction coefficient between the rubber belt grooves and the metal engine alternator or power steering pulleys causing high-speed slippage.
M
MechanicPro
answered 5d ago