Fuel pump/filter trouble

Tiny
CHRISTHEIS
  • MEMBER
  • 2013 LINCOLN MKT
  • 3.7L
  • V6
  • 4WD
  • AUTOMATIC
  • 300,000 MILES
The car “pulses” when driving, tachometer goes up and down when driving on highway more when going up a hill. Car feels funny like the power is going up and down.

Two days ago the car would not start in the morning, cranked it maybe three times and it did not fire. Later that day the car started, about 6 hours later. I’ve started the car about four times and let warm up, but I’m afraid to drive it because I think it may stall and leave me stranded.
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Wednesday, October 23rd, 2019 AT 8:49 AM

1 Reply

Tiny
AL514
  • EXPERT
Hello thanks for using 2CarPros. a fuel pressure test will confirm if it's a fuel related issue. another possibility is the catalytic converter has melted down. Since it will start and run after sitting for a few hours. https://www.2carpros.com/articles/how-to-test-a-catalytic-converter. https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
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Wednesday, October 23rd, 2019 AT 9:28 AM

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