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Intermittent acceleration and hesitation issue

Tiny
STEVE MATTHIAS
  • MEMBER
  • 2005 FORD FREESTYLE
  • 3.9L
  • 6 CYL
  • 4WD
  • 185,000 MILES
Start's fine but putter's every so often. Sometimes start up and drives, sometimes driving and it kind of doesn't want to accelerate high RPM then runs okay. Then does it again. Now drove it 12 miles and nothing. Got back to town and it started again. Slow acceleration after stopping at a red light.
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Thursday, December 26th, 2019 AT 10:29 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
We need to start with monitoring the fuel pressure when this is happening. There is a chance that this is sensor issue in the intake, but if the fuel pressure is jumping around then we need to go down that road first.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Let me know what it is when this is happening and we can go from there. Thanks
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Thursday, December 26th, 2019 AT 11:01 AM

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