SL/R230: High Pitch ABC noise at relief valve
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Joined: Oct 2018
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2005 SL500
High Pitch ABC noise at relief valve
First time poster here. Have an 05 Sl500 with 80k i got over the summer.
It has a high pitch/frequency squeal coming from the pressure relief valve behind the driver front wheel.
I replace the pulsation damper on the valve- No change
I replace the abc pump because i had a growling noise, flushed the fluid and new filter- still no change in the high pitch noise
It seems like the sound is resonating from the high pressure line. It goes away as the car raises or lowers but comes right back as the car settles. Any thoughts? Its insanely annoying at idle and red lights
I didn't have access to do a rodeo so maybe i have a ton of air still?
I Attached a video, thanks gents
It has a high pitch/frequency squeal coming from the pressure relief valve behind the driver front wheel.
I replace the pulsation damper on the valve- No change
I replace the abc pump because i had a growling noise, flushed the fluid and new filter- still no change in the high pitch noise
It seems like the sound is resonating from the high pressure line. It goes away as the car raises or lowers but comes right back as the car settles. Any thoughts? Its insanely annoying at idle and red lights
I didn't have access to do a rodeo so maybe i have a ton of air still?
I Attached a video, thanks gents
