Fuel pressure regulators?


Well-Known Member
Do these components go bad? Mine seems to work just fine but is OEM and is 12 years old. Does anyone know if these have a rubber diaphragm in them or any other parts that break down over time or are they all mechanical? (eg. metal body, metal screw to regulate pressure)

Thanks in advance
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Kyle D

Well-Known Member
There is a spring in a pressure regulator that over time will weaken and either require adjustment or replacement of the regulator if there’s no adjustment. Additionally most fuel pressure regulators do have a diaphragm inside them so you may just want to get a new one ready