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1997 Ford F-150 rough when going slow

Tiny
HOSSY2010
  • MEMBER
  • 1997 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 143,000 MILES
When I take off going slow 0-5 mph it is real rough. It bounces a lot when going that slow.
Sunday, June 22nd, 2008 AT 3:38 PM

3 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check the tps sensor and the fuel filter, if you put the pedal down at a start to about halfway does it accerlate just fine? How about crusing at highway speeds does the problem only happen in the low accelerator pedal positions.
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Sunday, June 22nd, 2008 AT 9:27 PM
Tiny
HOSSY2010
  • MEMBER
  • 4 POSTS
If I put it down half way it is fine. Also at highway speeds it is ok. It is only when I just give it a little gas
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Monday, June 23rd, 2008 AT 9:18 AM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Check for TPS voltage with the pedal at closed throttle and then go steadly up in pressure, is it erratic in the begining and smoother after it gets past half throttle or stay the same throughout?

Could be a minor vaccum leak
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Monday, June 23rd, 2008 AT 8:09 PM

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