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ClevelandFRS · 02-24-2020, 05:59 AM

My 2013 FRS in automatic (71k miles) has a knocking sound that only appears when the gas pedal is pressed and only under maybe 30mph or so. A gentle press on the pedal will start the sound after about 1-2 seconds and it will stay there until I either let off, or press down more.

I am of course going to have it looked at as soon as I can. But, was curious what the community might think off the top of their head and with experience in this model on what that could probably be.

This sound stops as soon as I let off the pedal or exceed roughly 30mph. Some advice is appreciated if you happened to have any idea of what this is. Could is likely be the Vacuum Pump that needs to be replaced?

02-24-2020, 05:59 AM	#1
ClevelandFRS Member Join Date: Feb 2020 Drives: Scion FRS 2013 Location: Cleveland Posts: 22 Thanks: 0 Thanked 4 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	My 2013 FRS has a knocking sound but only in low speed My 2013 FRS in automatic (71k miles) has a knocking sound that only appears when the gas pedal is pressed and only under maybe 30mph or so. A gentle press on the pedal will start the sound after about 1-2 seconds and it will stay there until I either let off, or press down more. I am of course going to have it looked at as soon as I can. But, was curious what the community might think off the top of their head and with experience in this model on what that could probably be. This sound stops as soon as I let off the pedal or exceed roughly 30mph. Some advice is appreciated if you happened to have any idea of what this is. Could is likely be the Vacuum Pump that needs to be replaced?