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Fuel pressure

Tiny
DEUBANKS
  • MEMBER
  • 1988 FORD F-150
  • 4.9L
  • 6 CYL
  • 4WD
  • MANUAL
  • 200,000 MILES
I just replaced high pressure fuel pump and its still acting like it is starving for fuel and I also got a brand new fuel filter. Do I need to prime it somehow? It only has one tank so it goes from tank to a reservoir to pressure pump to filter then up to the engine.
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Monday, March 6th, 2017 AT 7:05 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Have you replaced the filter as well?
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Tuesday, March 7th, 2017 AT 1:27 AM
Tiny
DEUBANKS
  • MEMBER
  • 1 POST
Yes, I did a last weekend. I shot starting fluid and it started and had fuel through pedal but then it like looses its pressure and cannot keep it running like it is loosing its fuel pressure.
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Tuesday, March 7th, 2017 AT 9:11 AM
Tiny
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  • MECHANIC
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Pressure regulator my be faulty, you need to prove actual fuel pressure first
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Wednesday, March 8th, 2017 AT 3:30 AM

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