Bucking sometimes when I Accelerate

Tiny
FINANCEGIB
  • MEMBER
  • 2003 FORD EXPEDITION
  • 120,000 MILES
2 out of every 7 times I go to accelerate, the car bucks - almost if stopping for a quick second. Then is fine. Almost never when I am taking off from 0. Usually when accelerating from 35 to 45. But as I travel for 10 miles at a constant mph, no hesitation at all.

Sometimes I can go 20 minutes with no problem then it will happen over and over as I go up in speed.

Any thought?
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Tuesday, May 7th, 2013 AT 7:02 PM

1 Reply

Tiny
HMAC300
  • EXPERT
Scan for codes and checkfuelpressure first
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Wednesday, May 8th, 2013 AT 8:37 AM

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