Fuel Pressure Regulator

Tiny
RMOORE09
  • 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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Sunday, July 8th, 2012 AT 8:33 AM

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Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

On the fuel rail.

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

Roy

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Sunday, July 8th, 2012 AT 1:00 PM
Tiny
RMOORE09
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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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Sunday, July 8th, 2012 AT 9:25 PM
Tiny
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How did you determine the regulator is bad? What is the pressure key on engine off?

Roy

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Monday, July 9th, 2012 AT 12:33 AM
Tiny
RMOORE09
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When the engine is off there is no pressure.

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Monday, July 9th, 2012 AT 2:53 AM
Tiny
ASEMASTER6371
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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

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Tuesday, July 10th, 2012 AT 2:21 AM
Tiny
RMOORE09
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Actually no I didnt

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Thursday, July 12th, 2012 AT 3:02 AM

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