Question about 2003 Ford Focus

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When I accelerate it is very jerky. It gets worse and worse until the check engine light comes on. Then after a while of it being on it goes off and the problem goes away only co come back later again.

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Ask a mechanic to check you fuel lines if it is sporadic good chance you have a issue with dirty fuel intake/ if this isnt the issue drop a line back and ill help with info on your cars micro chip for your fuel managment

Posted on Aug 04, 2009

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Posted on Jan 02, 2017

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Why is my engine missing out and engine light on?


Any time your "check engine" light comes on, that means that the onboard computer has detected a problem and has stored a "code". Take your car to your local auto parts store, most will read the code for you. You can use the code to know what the problem is, and likely know how to fix it.

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Acceleration jerky,and sometimes slow..... engine light, on & off??????????


the EGR valve might be sticking or it has a leak in the vacume system.
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Sep 21, 2014 | Cars & Trucks

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What is causing my 2005 Mazda 6 sport wagon to run jerky and not accelerate smoothly.


If it started only 3 days ago, go to your auto parts store and the next time you fill up, add a can of Sea Foam. If there is a gas station near you which sells gasahol-free gas, fill it up with that, then take it out on the interstate and kick it into passing gear several times (I hope you don't get a speeding ticket).

Nov 09, 2017 | 2005 Mazda 6

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My check engine light comes on and flashes only when i accelerate


Chances are you have problems with the ignition system.
First thing to do is get the computer scanned for trouble codes to find out why the check engine light is coming on.

Jan 31, 2013 | 1997 Nissan Sentra

1 Answer

91,000 miles I accelerate and felt the engine sputter. There small sputters, but I'm sure they're going to get worse. It also happens when I cruise around 50+ mps. No lights have come on


Sounds like you may have a small random misfire.. Have your spark plugs checked...One just maybe cracked...And sooner or later, as it gets worse the check engine light will pop on, and you can go from there..Goodluck...

Mar 02, 2010 | 2007 Chevrolet Equinox LS New Cars

1 Answer

Upon reaching and holding 55mph using only the accelerator, my truck begins to shake and vibrate and move forward in a jerky fashion. The problem goes away if I coast or if I begin to acceslerate. What's...


Could be your torque converter.
Have you checked all your fluids?
How is your oil Pressure at that speed it should be between 40 and 60
Any Check engine Light?
Does your Abs lights come on?

Jul 15, 2009 | 2002 GMC Sierra

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