How do you test the fuel regulator?
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Senior Member
Joined: Oct 2002
Posts: 147
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From: Chadwick, Illinois
How do you test the fuel regulator?
Title says it all. 1991 F150 XLT 4x4 5.0L How do I test the fuel regulator? I know I have vacuum. Where do I go from here? What symptoms will it give if it is bad? Thanks, Mike
Senior Member
Joined: Nov 2006
Posts: 5,495
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From: Memphis, TN 38135, USA, Earth
Click my black Bronco thumbnail, go to the EFI Fuel Pump album, & read the captions of the B&W diagrams. The one that shows the in-tank pump describes exactly how to test the fuel pressure & regulator.