How to check fuel pressure?

Tiny
TIGER
  • MEMBER
Thanks Doc I checked the pressure and it give me 28 key on only and the same on idol and when I give some gas it goes up to 35 and when I let go of the gas it goes under 28 to 26 and stays on 28 again.
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Indicates a little weak is filter O.K? If it runs good what is problem?
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
TIGER
  • MEMBER
Well it stalls when driving to the point that it turns off hesitate to turn back on and when u give it gas. I have replace almost everything except the EGR changed the TPS and the IACV. The air flow master changed the fuel filter the plugs, wiring, the hole disturbing system and still no fix.
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
BILLY215
  • MEMBER
  • 1991 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
When I turn my key on I hear a hum sound coming from the gas tank. My truck used to start but it wouldnt until the sound stopped and now it wont start at all.
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
It sounds like the fuel pump is bad. I need you to check fuel pump pressure.

Here is a how to. Let me know what you find:

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

If you need a gauge, most parts stores will lend or rent them.

Let me know.
Joe
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Find Data Link Connector left rear engine comp> Hook up as shown in diagram and read MIL flashes. Post any codes
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
TIGER
  • MEMBER
No engine light no code took it Ford and couldn't find anything gave it a body throttle cleaning but no luck. Let me go back to say that I had the head gasket replaced due to white smoke and from there it began check compression good. I can't remember what else.
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Would remove EGR clean pintel and passage ways
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
TIGER
  • MEMBER
Thanks Doc cleaned the EGR the pintel was stuck. It's still doing it do I need to run it around so that it gets stable. I will run it today see what it will do
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Not sure driving will help but would be able to see if pintel gets stuck again
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
TIGER
  • MEMBER
Ok did some driving and runs a little better but not quit. It stall when coming to a stop or turn on a corner. Hesitates a little when taking off but stables when I floor it.
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Seems something to do with EGR may consider replacement. If lift up on diaphram at idle does engine kill?
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Saturday, May 29th, 2021 AT 10:35 AM (Merged)

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