Mechanics

FUEL PRESSURE REGULATOR

1999 Ford Explorer • 212,000 miles

Hello, where is the Fuel Pressure Regulator on my model explorer? It has the 4.0 L V6 OHV engine. I was told it was on the fuel pump assembly but I have been told other things. Could someone tell me for sure?
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Rmoore09
July 8, 2012.




On the fuel rail.

Why are you replacing it? Not a very common issue at all.

Roy

The regulator actually is not working properly. It starts but it is a little rough on cold starts. The cranking amps of the battery is great.
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Tiny
Rmoore09
Jul 8, 2012.
How did you determine the regulator is bad? What is the pressure key on engine off?

Roy

When the engine is off there is no pressure.

Tiny
Rmoore09
Jul 9, 2012.
That is most likely the pump. There is a check valve in the pump that is common for failure. Did you pinch off the lines to confirm?

Roy

ASEMaster6371
Jul 10, 2012.
Actually no I didnt

Tiny
Rmoore09
Jul 12, 2012.

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