Question about 2001 Mercury Villager

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Van idles ruff

When your stopped the van kinda wants to die but does not,some one told me it might be a ilde speed throttle control actuator,im guessing.

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  • lacewellgary Jan 16, 2009

    so its not the throttle control actuator,tis a vacume leak?

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Yes the idle air control motor controls the idle basically it is a meetered vacuum leak

Posted on Jan 16, 2009

  • work4it1 Jan 16, 2009

    NO sorry to confuse you its a very good posibility its the idle air control valve

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2007 ford explorer sport trac 4.0 ruff idle was told it was it was a misfire but no cel or codes what kinda misfire causes no cel or throw a code done a tune up and cleaned throttle body didn't help


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Why does Van die when you turn the steering wheel?


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Is the check engine light on ? If so you should have the computer scanned for trouble codes first. The codes will point you in the direction to look for the problem.
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1989 1 ton chevy van model 30 automatic trans, dies when turn to the right, someone put a new ing. switch in it, and you can can pull the tumbler out with the van running, may be hitting something when you...


OK check for any obstruction that might play a part in obstructing free movement of the steering mechanism when turning right. Next compare the ends of the left and right hands end of the steering rack The steering arms are held in the middle of the steering rack ends by a doughnut shaped bush bearing. If this has been damaged the rack will be dragging on the inside of the casing when the steering is turned in one direction. It could be that the end bearing on the left is shot and this is what is obstructing the turn to the right. The next thing to take care of is the fact that you have the engine stalling under load. This points to an idle speed control problem. Check that the throttle body interior and throttle plate are really clean and that the idle speed control valve on the throttle body is actuating properly. If suspect unbolt and give this a thorough interior clean out.

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Idle Speed Control (ISC) Motor OPERATION Eagle Throttle Body Fuel Injection (TBI) System NOTE: The Eagle TBI system is used only on 2.5L Premier engines. The Idle Speed Control (ISC) motor is mounted to the throttle body and controlled by the PCM. The throttle lever rests against the initial adjustment screw of the actuator (plunger). The idle speed is not adjustable. The initial adjustment screw is only used to establish the initial positioning of the actuator when the ISC motor has been replaced. The actuator extends or retracts to control engine idle speed and to set throttle stop angle during deceleration. Based on inputs from the various engine control system sensors and switches to the PCM supplies current to the ISC motor to adjust the actuator position for the particular operating conditions.
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Throttle body removed and replaced


I'm not a chevy guy, but I think you need to reset the throttle position sensor (TPS) once it's disconnected.

For idle, the throttle plate is almost closed with just a little air getting through. For more air, an IAC idle air control valve lets more air in to maintain an ilde speed. The TPS tells the engine computer when the throttle plate is closed and then the computer tells the IAC to let more or less air in to maintain idle.

So, as long as you reconnected all the connectors you took off, I'm guessing you just need to make some readjustments. Calling your Chevy dealer service department, they can tell you if that's true.

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Advice on idling problem


Priority Action Part Type Cause 1 Inspect Hose (Vacuum) Misrouted, damaged, loose, or clogged vacuum hose(s) grey_line.gif 3 Inspect Choke Pulloff Worn, defective, or faulty choke pulloff(s). grey_line.gif 4 Inspect Hood Brace Leaking, worn, or damaged intake manifold gasket grey_line.gif 5 Inspect Choke Thermostat Stuck or improperly functioning choke thermostat. grey_line.gif 6 Inspect Carburetor/Fuel Injection Gsk Deteriorated, or faulty carburetor/throttle valve mounting gasket. grey_line.gif 7 Inspect EGR Valve Clogged, dirty or improperly functioning or defective egr valve. grey_line.gif 8 Inspect Idle Air Control Valve Damaged, loose, or faulty idle air control valve. grey_line.gif 9 Inspect Idle Speed Control Actuator Damaged, loose, or faulty idle speed actuator. grey_line.gif 10 Inspect Idle Stop Solenoid Damaged, loose, or faulty idle stop solenoid. grey_line.gif 11 Inspect Throttle Position Sensor Faulty throttle position sensor or throttle position sensor circuit. here the answer to ur problem use autozone.com if this does not workor u need more info here to help Shaun

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