What is causing a whining like noise while decelerating?

Asked by Zander Oct 07, 2020 at 02:12 AM about the 2009 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

My car makes a whining noise decelerating. For example ill be doing 50 then let
off the accelerator the RPM will drop from about 4500 to idle at >1000 RPM,
and a very distinct whining sound starts then stops when I get back in the gas
and increase the RPM.

2 Answers

F_O_R answered 3 years ago

This could be the torque converter or the transmission fluid pump.

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