Question about 2001 Ford Crown Victoria

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Surging problem Sorry, I guess I should have told you that I have replaced the electronic air intake valve and that did not cure the problem. We need to look at another possibility. thanks for your help in trying to solve this problem.

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Cool, is there any other wiring about the valve that may have been miswired. Just checking . Its not a retired cop car by chance :)

Posted on Jun 20, 2008

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Honda crx with auto transmission idles roughly in drive or reverse. AC on makes it worse.


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1 Answer

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surging problem could be vacuum leak check all vacuum hoses on intake manifold.hook vacuum gauge to check engine vacuum could have intake manifold leak or could have bad spark plugs and wires.distributor cap and rotor need replacing.ignition timing off.if all is good clean fuel injectors and change fuel filter.if fuel pressure low or pump failing engine will surge real bad.if your air flow sensor bad or egr valve bad the check engine light will turn on.best have vechicle hook to code scanned check emission control system.many things cause engine surge dirty fuel injector faulty fuel pressure regulator have vechicle code scan to save from guessing spending way too much money.

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Hi i just replaced the air intake elbow from throttle body to air flow brand n ew and still the car wont idle


Try this.

This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control. If the above cleaning doesn't cure your issues you need to have the computer controlled automatic idle speed control system diagnosed and repaired by a dealer or electronic engine control repair shop.

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