could Fuel Pressure Reg. cause pinging???

[97splorer]

I have a pinging noise when accelerating around 1500-3000 RPM. The noise goes away if I gun it or let off the gas. I popped the hood and listened with a steele tube to my ear, and the pinging seems to be coming from the fuel pressure regulator. What gives?

 

[410Fortune]

No, the pressure regulator would not ping, it is a simple vacuum diaphram valve that allows feul to pass through once a certain fuel rail pressure it acheived and maintained.

However a lean condition can cause pinging, which can be caused by a blocked or broken regulator hahaha

Your pinging noise is most likely the passenger side exhaust manifold leaking on the 5.0L
It could be many other things but check that first, very common, will make more of a tapping noise though.

 

[97splorer]

How can I check If it is running too lean?