Very low fuel pressure at WOT after blue spring?? - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 08-07-2012, 06:26 PM Thread Starter
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Very low fuel pressure at WOT after blue spring??

I installed the blue spring fuel pressure spring tonight (FWIW: I bought the kit at my local International dealer for $38). After the install, I'm showing about 68psi at idle and at cruise. I am running Vivian's Looney Tune. After stepping on it and going WOT, I dropped very quickly and leveled out at 30psi. I quickly let off.

Any ideas? Is my HFCM dying? I was a bit surprised that my fuel bowl wasn't full when I took the cover off...


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