fuel problem

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Sep 26, 2011 | 04:26 PM

bnsproul

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fuel problem

i have a 94 f150 with 4.9 and i put new fuel pump regulator filter and still just 20lb of fuel presser plz help

Sep 26, 2011 | 06:23 PM

kc0rey

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From: Macomb, IL

What is your voltage at the pump? What is your voltage at the switch? What is your voltage at the relay? Start at the relay, that will be the easiest.

Sep 26, 2011 | 07:37 PM

bnsproul

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12 -13 volts running 0 key on not running at all spots

Sep 26, 2011 | 07:41 PM

kc0rey

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From: Macomb, IL

Quote:

Originally Posted by bnsproul

12 -13 volts running 0 key on not running at all spots

OK, How is it running? Are you sure your Fuel Pressure gauge is accurate?

Sep 26, 2011 | 07:43 PM

bnsproul

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i put a new pump in and had 40 -50 lb for 15 or 20 miles then dropped down to 20lb

Sep 26, 2011 | 07:45 PM

bnsproul

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no top end power running bad and using a good gage on test point on fuel line

Sep 26, 2011 | 07:50 PM

kc0rey

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Joined: Oct 2009

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From: Macomb, IL

Something has to be clogged......I'm wondering if you don't have some dirt in the system that has clogged the new filter.

Does your Fuel Pressure improve when you unplug the vacuum line on your regulator?

fuel problem

fuel problem

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