V10 idles like a champ, apply ANY AMT of throttle though.....

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#16

05-10-2014, 02:37 PM

makemeknowit

Mountain Pass

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Replaced the pump today and have been out ripping on it. She hasn't laid down any more and I'm getting 32 psi at idle vs 28 with the other pump.

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#17

05-13-2014, 11:38 AM

Immortal_Ben

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Yeah, any time there is a stumbling issue, the first thing I say is to check that fuel pressure! Diagnosing a problem can be a pain, but I would rather have a headache than a wallet ache from just chasing symptoms by throwing parts at it.

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#18

11-04-2014, 10:43 AM

Fordsflylow

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Quote:

Originally Posted by makemeknowit

Changed the relay, didn't fix the problem. I guess it is the pump unless the fuel pressure regulator could be the culprit? And the relay is behind the radio by the way.

By behind the radio do you mean in dash or back of engine?

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