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Posted on May 08, 2017
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Hesitation on hard acceleration-overdrive

When on the freeway (or surface streets) when accelerator is pushed hard, car hesitates and almost bucks. Seems to be only when use of overdrive gear is necessary or excessive fuel is needed. Have had complete tune up with plugs/wires/fuel fiter. Fuel pump is only 30,000 old (car has 71,000). Gears seems to shift smoothly under normal driving conditions leading me to believe it's a fuel issue as opposed to a transmission issue (could be wrong). Similar situations seem to mention the Mass Airflow sensor. Could that be my problem?

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David Clark

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  • Expert 69 Answers
  • Posted on May 08, 2017
David Clark
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Do you have a OBD meter? Probably some sensor will show a flaw. You can buy one from Walmart for around $20.

At least here, In South Florida, Some Auto parts stores will either lend you one(requires a deposit) or do it for you.

Of course you can take it to almost any shop who will use a more elaborate machine, then fix it.

Bogdan Odwazny

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  • Ford Master 6,171 Answers
  • Posted on May 08, 2017
Bogdan Odwazny
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Any codes? Do you have coils?

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5 Related Answers

Anonymous

  • 13 Answers
  • Posted on Aug 29, 2008

SOURCE: Bucking on Hard Acceleration

You best bet would be to look for the vacuum diagram and just take a day to make sure all of the lines to the engine and tranny are all correct. If its not it and while bucking the car feels like its going to turn off on you then it maybe a fuel delivery problem.

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Anonymous

  • 1 Answer
  • Posted on Sep 09, 2008

SOURCE: Hesitation when accelerating

Did the EGR valve replacement fix your problem ?

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Nov 06, 2008

SOURCE: hard shift and blinking overdrive

The blinking overdrive button is telling u that a serious fault has occurred in the electronic controls or a mechanical fault such as excess slippage is occurring.

Anonymous

  • 3533 Answers
  • Posted on Jan 06, 2009

SOURCE: '89 f150 4x4 AOD doesn't like overdrive

get the truck where you can service it and have a transmission service done this will include: new fluid and transmission filter
because it sounds as if it has not been changed in awhile open the hood and if the transmission fluid smells cooked change it right away

Anonymous

  • 1201 Answers
  • Posted on Oct 01, 2009

SOURCE: 2001 Ford E150, V6. Stutter/hesitation upon

Have the throttle position sensor checked, might be faulty.

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http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

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http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

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http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

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http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

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http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

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http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

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http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

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http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

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http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

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1998 mercury cougar rx8 155000m Hi the few problems my car is having is when I first push in the pedal it has a hesitation and won't immedieatly accelerate. It'll finally **** and take off after...

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It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

There are many other possibilities. I suggest you to go through the list of help links mentioned below, these will help you to confirm where the actual fault lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

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Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

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http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

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http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

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How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

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2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

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