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No idle with air is on - Cavalier Chevrolet Cars & Trucks

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  • Denis Houle
    Denis Houle Mar 30, 2014

    Hi Andrew Villafane, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?
    like witch year your chev
    does it stall

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What is an IAC Valve


Google is your friend in such questions.

  • Idle air control actuator - Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Idle_air_control_actuator An idle air control actuator or idle air control valve (IAC actuator/valve) ... Idle air control actuator; MAP sensor; Mass flow sensor; Oxygen sensor; Starter motor;
  • how to tell if your iac valve is going bad - YouTube www.youtube.com/watch?v=oNO8GCN8jQA
    • BY TIMMY102345
    • 6 MIN
    • 939K VIEWS
    2009-09-07 · Video embedded · how to tell if your iac valve is going bad timmy102345. ... #372 Better repair method Toyota Camry Idle Air Control Valve - ...
  • 4 Ways to Check an Idle Air Control Valve - wikiHow www.wikihow.com/Check-an-Idle-Air-Control-Valve
    • 525K VIEWS
    2015-12-11 · How to Check an Idle Air Control Valve. ... Again, an idle air control valve can have an issue or fault without triggering a check engine light. 2.


  • There are also videos in this link. How to check and fix.

  • What is an IAC Valve Bing video

    May 12, 2016 | 1992 Toyota Paseo

    1 Answer

    Will not stay running at Idle


    Clean your throttle body with throttle body cleaner, inside and out, and check your idle air control valve on the throttle body. That can be taken off and cleaned too. Be careful with it, it has a small motor called a stepper motor. It's how the engine computer controls the idle speed. The only air passage into the engine at idle (when the foot is off the gas pedal and the throttle plate is closed), is this air passage under the idle air control motor. The stepper motor allows it to control the amount of air, less for lower idle speed, more air for higher idle. See? Well, good idling.

    Jul 06, 2015 | Cars & Trucks

    1 Answer

    94 nissan altima won't start and iddle after cleaning IACV valve


    An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air. An idle air control motor can fail one of two ways, either the motor short circuits and stops working or the motor will develop high resistance and cause the idle air control motor to react slowly, either failure can cause the engine to stall at idle. When a trouble code scan is performed it sometimes won't always detect a failed or weak idle air control motor.

    Oct 08, 2012 | Nissan Altima Cars & Trucks

    1 Answer

    Car idols rough no power


    Mar 03, 2012 | 1999 Suzuki Esteem

    1 Answer

    High idle on cold start on a 86 dodge d50 2.0 liter


    Feb 27, 2012 | 1986 Dodge Pickup 4WD

    1 Answer

    98 dodge ram 1500 5.2 the truck will start but it will not idle.


    Feb 21, 2012 | 1998 Dodge Ram 1500 4WD

    1 Answer

    I have a 1996 Eclips 2litre when you get in and start it with your foot on fuel it works fine when you take your foot off it dies out.Also its only getting 5amp/volts witch ever it is to the fuel ,map...


    I am not saying 100% this is your problem because this is a fairly expensive part however your symptoms are classic IAC failure. An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air. An idle air control motor can fail one of two ways, either the motor short circuits and stops working or the motor will develop high resistance and cause the idle air control motor to react slowly, either failure can cause the engine to stall at idle. When a trouble code scan is performed it sometimes won't always detect a failed or weak idle air control motor. To check the idle air control motor remove the unit, with the wires connected turn the key to the "on" position without starting the engine, the idle air control should move in or out. If the idle air control motor does nothing it has probably failed, replace it with a new unit and recheck system. Note: while the idle air control motor is removed clean (use aerosol carburetor cleaner) the passages the idle air control uses to control idle air speed, also inspect the idle air control for a build-up on the seating (pointed) end and clean as necessary.

    Jul 20, 2011 | Mitsubishi Eclipse Cars & Trucks

    1 Answer

    Just started idling rough, sometimes stalling


    Shot in the dark here without knowing the vehicle but it could be an Idle Air Control valve starting to fail. An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air. An idle air control motor can fail one of two ways, either the motor short circuits and stops working or the motor will develop high resistance and cause the idle air control motor to react slowly, either failure can cause the engine to stall at idle. When a trouble code scan is performed it sometimes won't always detect a failed or weak idle air control motor. To check the idle air control motor remove the unit, with the wires connected turn the key to the "on" position without starting the engine, the idle air control should move in or out. If the idle air control motor does nothing it has probably failed, replace it with a new unit and recheck system. Note: while the idle air control motor is removed clean (use aerosol carburetor cleaner) the passages the idle air control uses to control idle air speed, also inspect the idle air control for a build-up on the seating (pointed) end and clean as necessary.

    Jul 20, 2011 | Mazda B2300 Cars & Trucks

    1 Answer

    3.2 liter yamaha engine manual IAC valve How do I replace the IAC valve on this engine? Steps? I just bought a new one and I need to get it replaced. FORD 1994 Taurus SHO 3.2 liter engine YAMAHA


    may just need cleaning with carb cleaner.

    here is 1996, oldest I have:

    Section 03-14: Engine Controls, Electronic 1996 Taurus, Sable Workshop Manual
    REMOVAL AND INSTALLATION Idle Air Control (IAC) Valve Removal
    1. Disconnect battery ground cable (14301). Refer to Section 14-01 .
    1. Disconnect the engine control sensor wiring (12A581) from the idle air control valve (IAC valve) (9F715) at the idle air control valve electrical connector.
    1. Remove the two idle air control valve retaining bolts.
    1. Remove the idle air control valve and idle air control valve gasket.
    Installation
    1. NOTE: If scraping is necessary, be careful not to damage idle air control valve gasket surfaces, or drop material into intake manifold (9424) or throttle body (9E926) (depending upon application).

      Clean idle air control valve gasket mating surfaces.
    1. To install idle air control valve, reverse Removal procedure.
    1. Tighten the idle air control valve retaining bolts to 8-12 Nm (71-106 lb-in).
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    Jan 14, 2010 | 1994 Ford Taurus

    2 Answers

    Replacing Idle Control Valve on 97 Pathfinder, need help!


    it's on the throttle body. Here's a Quest with same 3.0L engine. These often need cleaning with carb or throttle body cleaner

    Idle Air Control (IAC) Valve When the engine (6007) is running but not at idle, the throttle valve controls the amount of air admitted into the engine. The powertrain control module (PCM) (12A650) increases the fuel injection output in proportion to the increased airflow to achieve the appropriate air/fuel ratio. During idle, the throttle valve is almost fully closed. It is therefore necessary for the idle air control system to supply air for combustion during idle. The idle air control (IAC) valve allows a metered amount of air to enter the intake manifold (9424). The camshaft position (CMP) sensor detects engine speed and sends a signal to the PCM. The PCM sends a duty cycle (On/Off) signal to the IAC valve which allows additional air to enter the intake manifold. Air is added by the IAC valve to maintain the set lowest idle speed at which the engine can operate. The idle speed adjusting screw allows adjustment of the airflow into the intake manifold.

    0cb8ac7.gif
    Fast Idle Control (FIC) Solenoid The fast idle control (FIC) solenoid helps maintain a constant idle speed while the air conditioning is operating. When the air conditioning is turned on, the front climate control panel sends out two signals. One signal is sent to the powertrain control module (PCM) (12A650) to engage the A/C compressor (19703). The second signal is a ground signal sent to the FIC solenoid relay, to engage the FIC solenoid. The FIC solenoid supplies additional air to adjust the increased engine load.

    May 27, 2009 | 1997 Nissan Pathfinder

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