Engine stutters at half a tank

2004 FORD FOCUS
215,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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JUSTINTCJORDAN
  • MEMBER
  • 1 POST
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.
Feb 23, 2020 at 1:41 PM
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 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
Feb 23, 2020 at 3:12 PM
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