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Acceleration promlems when at cruising speed if i mash accelerator truck spits and sputters and sometimes backfires .....good acceleration through all gears only does this when given alot of gas at higher speeds...please help its driving me crazy!!!

Posted by jacob stinson on

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Bill Boyd

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  • Cars & Trucks Master
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Check for fuel supply problems as it sounds that at sustained high speed the fuel supply is not good enough. Possible pump dosen't have enough capacity

Posted on Feb 01, 2013

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5 Related Answers

Anonymous

  • 2 Answers

SOURCE: A4 Sputtering/skipping when accelerating from stop

sounds like a spark plug or wherte the plug goes into

Posted on Apr 09, 2009

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Anonymous

  • 2 Answers

SOURCE: My 1996 cutlass ciera stalls out sometimes after I

Try the fuel pump Relay. I had the exact same problem and thats all it was. It will eventually stop sending fuel at all. The relay is under the hood on the passenger side front corner. Ther are I think 5 there, the fuel pump relay is all the way to the right looking down into the engine compartment. Hope this Helps

Posted on Nov 27, 2009

MARJOREE GROOMES

  • 114 Answers

SOURCE: my blazer sputters when cold and hesitates when

your timeimg is off if theres a distuributor there just might be u need to losen the bolt right below the distuributor with car off once loose start car it only needs to be loose enough to turn startcar turn ur tarding it upping the amount of gas and air intake u absoreb turn it to the right ur engine should idle hire dont turn to must at all little by littleas u turn hairturns at a time get dont shut hood alll way get in go down the street punch it if it feels good gets it and goes ur good if not keep repeating prosscess until it feels right to u

Posted on Jan 24, 2010

Anonymous

  • 25 Answers

SOURCE: 2001 Ford F650 with 7.2 Cat deisel acceleration problem

Check your TPS Throttle positioning sensor. Sounds like it has a dead spot in it or it is failing. May also be a wiring harness issue or loose connection at TPS too! If its intermittent then it will soon go out completely. It should be located on your fuel pedal. Remove it and check it with an ohm meter. Check resistance all the way thru from 0-100 percent. When it is not working it should do nothing and show no resistance. When it is working the resistance value will increase and or decrease as you turn the sensor.

Posted on Feb 22, 2010

Anonymous

  • 71 Answers

SOURCE: car chugs and jerks like crazy while cruising

Determine whether the jerking is engine or transmission related. One way to determine if it is the transmission lock up converter is acting erratically is to down shift out of OD. And see if jerking persist. If it goes away suspect transmission to have problems with torque converter or TCC solenoid . If it doesn't go away determine whether or not the engine sounds to be misfiring. If so vehicle may require a tune up. Many vehicles can be diagnosed for free at your local Auto Zone.

Posted on Jul 19, 2010

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