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Engine stutters at half a tank

Tiny
JUSTINTCJORDAN
  • MEMBER
  • 2004 FORD FOCUS
  • 2.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 215,000 MILES
When ever my cars fuel drops below 3/4 of a tank it starts to stutter when I press the gas pedal. It gets worse until about a half a tank, then it tries to shut off when I press the gas.
Sunday, February 23rd, 2020 AT 1:41 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,054 POSTS
That description sounds like a fuel pump issue inside the tank. The pump is getting weak and without the full tank of fuel to force the pump to work better you get the lower power. A simple fuel pressure test would verify it. Try this and see what your pump is doing. You should see 35 - 70 PSI on a good pump and control module.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Sunday, February 23rd, 2020 AT 3:12 PM

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