4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

car making weried sound

Old 09-26-2007, 06:26 PM
  #1  
GIJOE
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Default car making weried sound

when ever i get on the gas and it climbs the rmps right befor it shift i will let off and the car will make this weried screaching sound could it be my transmision
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Old 09-26-2007, 07:16 PM
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97targa
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Default RE: car making weried sound

This is a shot in the dark without hearing the noise frst hand, but change your PCV valve! If it's clogged it can cause your EGR valve vacuum accumulator to starve for air and it will make a screeching sound. usually it's at idle, but all circumstances are diff.
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