Question about 2001 Ford Focus

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What is the cause of the car not responding to throttling and accelerating but jerking instead?

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  • Ford Master
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Tps can cause this if it is out of range. (throttle position sensor)

Posted on Apr 24, 2015

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Posted on Jan 02, 2017

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1 Answer

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The AC system requires horsepower so it may cause a jerk if the following is present, the idle speed control system is fouled up with gunk and slow to respond to the load change. I suggest you clean the idle speed control valve and the throttle valve with spray throttle valve cleaner and see if that helps.

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Jerking accelerating


This may be normal but you can adjust your driving to reduce the impact. To speed up the warm up process of the catalytic converters, the power train computer holds first gear a little longer than normal. This causes your car to get higher in the rpm range than normal, at part throttle, which causes the hard shift. On your first drive, try NOT to accelerate while the car is in first gear--it won't take long for you to learn how far this is.

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Causes car jerk


Car needs to warm up properly so that the automatic choke disengages completely,
After allowing the car to run at idle for a minute or two,
Give the accelerator pedal a quick push to about 1/3 throttle,
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I have a 2001 subaru forester when i accelerate aggressively the vehicle jerks .


Have a fault scan done (OBII scan) It sounds like a TPS (Throttle Positioning Switch) or Cranksahft trigger but have scan done ti verify instead of throwing parts at it. Any good parts store (Autozone, Advance, etc..) do the scans FREE

Mar 21, 2011 | 2001 Subaru Forester

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The accelerator pedal on my '99 silverado sticks closed. Every time I push on it, I have to break it loose, then it causes the truck to accelerate too much, so I'm always jerking forward. There's no way...


what you have happening is the throttle body is coked with carbon. get a can of carb cleaner and soak a rag down and open the throttle wide open and clean off all carbon from the throttle body and butterfly. this will solve this issue for you. hope this was helpful!

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2006 jag x-type when i comeing to a stop but i don't stop completely stop than i press the throttle the car jerks what causes that and can it be fixed


VECHICLE SURGE ON ACCELERATION POSSIBLE CAUSE COULD BE FAULTY ACCELERATOR POSITION SENSOR,FAULTY FUEL PUMP,CLOGGED FUEL FILTER + DIRTY FUEL INJECTORS.AIRFLOW DUCT TO THROTTLE BODY LOOSE OR DISCONNECTED.

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I dont have to excelerate the car goes by itself i have to keep my foot on the brakes all the time, the engine is racing off when on park and the car jerks when i have to change the gear. the engine light...


SOUND LIKE STICKING THROTTLE LINKAGE.HAVE ACCELERATOR CABLE CHECK UNDER THE HOOD ITS BINDING OR MISROUTED IN THE WRONG PLACE CAUSING A PULL ON ACCELERATOR CABLE CAUSE THROTTLE HANG OPEN CAUSING HIGH IDLE.

Jul 21, 2010 | 2002 Chevrolet Impala

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Ford Contour (2.5 V6 manual) jerks badly with throttle modulation


Check the lower motor mount near the drivers side. This usually is a problem with these cars. It costs about 140.00 or so depending where you reside. Also check the passenger side hanger bearing on the CV shaft if this is loose it will cause jerking too.

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2 Answers

When accelerating the car jerks on and off, the car shifs ok no problem only when accelerating.


Sounds like a common problem with the throttle body for our models, especially model years 2001 - 2002, and some 2003's as well but not as many.
Check out: http://www.xemodex.com/
They will rebuild your throttle body (also called ETM) with a digital angle sensor which is superior to stock for $600.
You'll need to get the car checked out first to make sure it's the ETM.

Jul 10, 2009 | 2003 Volvo XC70

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