SL55/63/65/R230 AMG: Sl55amg noisy fuel pump
#5
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I would replace both if pressure drops and you lean out motor you'll wish you had
#6
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Sl55amg
#7
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Okay,this is what I did,I have a lot of mods done and I monitor them with 2 wide band air fuel ratio sensors,my fuel pump started making noise,I record qtr mile runs,I saw that after the noise started in the fuel pump the AFR was high like in the 14 s. while making runs ,way too lean
so I immediately changed pump and filter problem solved.i mean if this is a new noise I would change the pump,
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#8
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Only just got the car,previous owner said that it had made that noise all the time in his ownership.why does it stop when turning right???the car performs spot on and so far this is my only grumble.