Question about 2003 Ford F150 Regular Cab

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Idle air control valve

2003 ford f150 4.6L (vin W) where is the IAC located and does anyone have a Napa part # .they can't seem to find it in their system

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  • Anonymous Mar 29, 2014

    I am trying to locate the iac valve on my 2003 1.4. cant find it

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On your throttle body, and go to an orielys or an auto zone if possible

Posted on Jan 02, 2009

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2003 Ford Explorer XLT Wants To Stall At Low Idle,, especially when at a stop light


How does it idle in park , does it run ruff or smooth? Are any lights lit on the dash , check engine etc. ? Could have a partially plugged IAC air passage .idle air control (IAC) valve ! The engine computer uses the IAC to control idle , when under a load such as when put into gear the computer raises the idle ! It does this by allowing more air to by pass the closed throttle into the engine raising the idle ! If these air passages clog they restrict the air flow an cause a idle problem ! Now if it runs ruff at idle in park you could have vacuum leak ! Rough Idle How to Fix Ford Taurus Engine Stalls at Stop Signs

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2003 idle control valve location


On the throttle body just before the hose to the air cleaner.
Should be black with three wires.

May 13, 2014 | 2003 Chrysler PT Cruiser

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Diagnostics test says idle air control underspeed error? how do i fix 1999 ford explorer


change the idle air control valve.

Idle Air Control (IAC) Valve OPERATION The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. The valve is located on the side of the throttle body. This valve allows air, determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal, to bypass the throttle plate in order to maintain the proper idle speed. Fig. 1: Typical Idle Air Control (IAC) valve which is mounted to the throttle body - cutaway view shows air bypass direction 89684g16.gif
--- REMOVAL & INSTALLATION
  1. Disconnect the negative battery cable. To remove the IAC valve, first disconnect the negative battery cable, then the IAC wire harness plug 89684p03.jpg
    Next, remove the two IAC valve attaching bolts . . . 89684p04.jpg
    . . . and pull the valve from the intake manifold 89684p05.jpg

  2. Disengage the wiring harness connector from the IAC valve.
  3. Remove the two retaining screws, then remove the IAC valve and discard the old gasket. To install: When installing the valve, always discard the old gasket and install it using a new one 89684p06.jpg

  4. Clean the IAC valve mounting surface on the throttle body of old gasket material.
  5. Using a new gasket, position the IAC valve on the throttle body. Install and tighten the retaining screws to 71-106 inch lbs. (8-12 Nm).
  6. Attach the wiring harness connector to the IAC valve.
  7. Connect the negative battery cable.
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Oct 15, 2010 | 1999 Ford Explorer

1 Answer

After sitting, hard to start, seems not to be getting fuel. you can spray starting fluid and it starts, must run at higher than normal idle for a few minutes, then will idle normally.


OPERATION The Idle Air Control (IAC) valve controls the engine idle speed and dashpot functions. The valve is located on the throttle body on. This valve allows air to bypass the throttle plate. The amount of air is determined by the Powertrain Control Module (PCM) and controlled by a duty cycle signal. Fig. 1: Cleanable IAC valve — 5.0L engine version shown, others similar 88484g22.gif
Fig. 2: Non-cleanable IAC valve — 5.0L engine version shown, others similar 88484g23.gif
prev.gif next.gif TESTING OBD-I System
  1. Make sure the ignition key is OFF.
  2. Disconnect the air control valve.
  3. Use an ohmmeter to measure the resistance between the terminals of the valve solenoid. NOTE: Due to the diode in the solenoid, place the ohmmeter positive lead on the VPWR pin and the negative lead on the ISC pin.
  4. If the resistance is not 7–13 ohms, replace the air control valve.
---
REMOVAL & INSTALLATION Fig. 1: Idle air control valve mounting — 4.9L engine version shown, others similar 88484g10.gif
  1. Disconnect the negative battery cable.
  2. Disconnect the engine wiring to the IAC sensor.
  3. Remove the two retaining screws for the valve.
  4. Remove the IAC valve and discard of the old gasket. Fig. 2: Disengage the idle air control solenoid electrical connection 88485p12.jpg
    Fig. 3: Loosen the idle control solenoid retaining screws 88484p08.jpg
    Fig. 4: Remove the idle air control solenoid from the throttle body 88484p09.jpg
    To install:
  5. Clean the area of old gasket material.
  6. Using a new gasket, attach the IAC valve to the engine. Tighten the retaining screws to 71–102 inch lbs. (8–12 Nm).
  7. Connect the IAC valve wiring to the unit.
  8. Connect the negative battery cable.
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Aug 01, 2010 | 1990 Ford Econoline

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How to remove a idle air control valve is windstar 2001


Idle Air Control Valve The Idle Air Control (IAC) valve is located on the air intake plenum.


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Removal & Installation
Disconnect the battery ground cable.
Disconnect the Idle Air Control (IAC) electrical connector.
Remove the bolts and the IAC valve.
Discard the gasket.
To install:
Install a new gasket and position the IAC valve.
Torque the retaining bolts to 8 ft. lbs. (11 Nm).
Attach the electrical connector.
Reconnect the battery ground cable.

May 23, 2010 | 2001 Ford Windstar

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I have p1 auto codes p1506,p1443,p1744


the 1443 code is very common i just fixed it on my ranger. The canistger purge valve is defective, I found one at napa for about $46. It is located by the battery. After about 1/2 a day of driving or 4-5 starts that code will go away.

May 18, 2010 | 1997 Ford Ranger SuperCab

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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

1 Answer

I can't locate the IAC or idle air control valve in my 97 ford expidition 4.6l v8 triton. can anyone help me w/ this? Tnx & more power..


I.A.C sit in top on T.B.I. it's held on by two 8mm bolts, remove bolts clean surface replace gasket and reinstall sensor.

Nov 27, 2009 | 1999 Ford Expedition

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Idle air bypass vaule


The Idle air control valve (IAC) is on the back of the throttle body housing on the 4.6 V8, it's half the size of a can of Red Bull. Try tapping on it with a small hammer and if the truck clears up then it's time to replace the IAC.
You can clean it with Throttle body injector but that's just a quick fix for now. Good luck and hope this helps.

May 29, 2009 | 2003 Ford Expedition

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