Correct fuel pressure reading for 2.3 liter? - Ranger-Forums - The Ultimate Ford Ranger Resource


SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

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Old 04-03-2017
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Correct fuel pressure reading for 2.3 liter?

Just changed out the fuel pump on my 2001 Ford Ranger, 2.3 liter, which had failed. Checked the fuel pressure at the Schrader valve and it's holding steady at 80 psi when idling. Is this the correct pressure? Somehow that sounds too high; could that cause a problem?
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Old 04-04-2017
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Welcome to the forum


60-70psi is spec on 1998 and up Rangers, so yes a bit high but I would also test gauge on something else just to be sure.

Also hold RPMs at 2,500 and watch pressure, if it is under 75psi then you should be fine
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Old 01-12-2018
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Where is the Schrader valve even located?? I.can't find it at all on my 2.3l to test.
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Old 01-12-2018
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Depends on the year, 2.3l Lima engine was used in Rangers from 1983 to 1997
2.3l Duratec engine from 2001.5 to 2012

Not all the 2001.5 and up 2.3ls had test ports
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Old 01-13-2018
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Found it... Tiny little blue cap at the very back of the fuel rail behind the intake manifold. A complete PITA to even reach your hand back there... talking finger tip access.

Tested to see if I had fuel pressure. I have zero..lol Today I hope to change my fuel pump now that I finally got all 6 bed bolts off the truck.

-Nigel
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