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#4115502 - 07/17/21 10:08 PM Fuel pump deadhead pressure spec for a 2000 with 4
ReverseEngineerz Offline
Stranger

Registered: 05/09/21
Posts: 6
Loc: United States
Hello,

This is my first post here.

I recently got a deal on a 2000 Crown Victoria with only 78,000 miles on it, but it has always had a hard start issue.

I immediately replaced the fuel filter, and a while later, the pressure regulator.

I've been reading through various posts here surrounding this issue and today I had the opportunity to take pressure readings.

I decided to look at the pressure right out of the pump, reading before it passes through the filter.

With KOEO, it jumps to 30 psi.

I believe I have a bad fuel pump based on that reading, but I don't know what it should be.

With a good fuel pump deadheaded into a gauge, should I expect 30 (I suspect not), or something higher (I expect so)?

Thank you in advance.
_________________________
2000 Crown Victoria 79,000 miles (As of July 2021)

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#4115682 - 07/19/21 10:59 PM Re: Fuel pump deadhead pressure spec for a 2000 with 4 [Re: ReverseEngineerz]
ReverseEngineerz Offline
Stranger

Registered: 05/09/21
Posts: 6
Loc: United States
I have continued to research this. Based on pump specifications, I believe the minimum should be 45 psi.

If anyone knows different, please let me know.
_________________________
2000 Crown Victoria 79,000 miles (As of July 2021)

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#4116644 - 07/29/21 08:56 PM Re: Fuel pump deadhead pressure spec for a 2000 with 4 [Re: ReverseEngineerz]
ReverseEngineerz Offline
Stranger

Registered: 05/09/21
Posts: 6
Loc: United States
I replaced the fuel pump.

I got the whole assembly with hanger,float, and sender.

The old one was a Ford pump, date code 2009.

I went with a Bosch from rockauto, and was disappointed to see "made in China".

But it now starts normally, I don't have to prime it with 6 cycles of key on- key off.

Oh and I stripped one of the bolt holes, different thread about that. Successfully solved by tapping it for a 1/4-20 (original was M6), and I torqued them all to 60 inch pounds, stopping short of the 89 inch pound spec that caused one of them to strip.

I'll keep an eye on it for leaks and revisit if necessary.
_________________________
2000 Crown Victoria 79,000 miles (As of July 2021)

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#4116668 - 07/30/21 12:11 AM Re: Fuel pump deadhead pressure spec for a 2000 with 4 [Re: ReverseEngineerz]
SocalSam Offline
Over the Hill

Registered: 03/30/13
Posts: 2826
Loc: SFV, Calif.
OEM is likely Chinese so don't sweat it.
_________________________
2004 CV LX Sport #1, 57,000 miles -- Never was
2004 CV LX Sport #2, 121,000 miles -- Current
2008 CVPI Arizona Beige, 121,000 miles, 677 idle hours -- Current
2005 CVPI Ex-San Diego P.D. -- 2 month loaner


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