Question about 2002 Ford Escape

1 Answer

Fast idle changed air idle control still fast

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Habit-Forming:

    Visited the website for 3 consecutive days.

    Greenhorn:

    A rookie expert who has answered 20 questions on their first day.

  • Expert
  • 49 Answers

Mass airflow sensor

Posted on Mar 29, 2014


1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Why 98 accord surges unexpectedly at times


idle air control valve is dirty or fast idle thermo valve is not working correct idle air control is behind the air Pentium fast thermo is below throttle body cb1c9bed-96f3-47b7-87d5-98b7565539c2.jpg 8f6c0296-ecdc-41e5-a952-8dd215261a1e.jpg

Jul 13, 2014 | 1998 Honda Accord

1 Answer

What Makes a 1990 cutlass calasis idle fast.


Could be a dirty or stuck throttle plate, faulty idle air control valve, or a large vac leak.
The computer controls the idle speed by regulating the amount of air entering the throttle body thru the control valve.

Jan 31, 2013 | Oldsmobile Cutlass Calais Cars & Trucks

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

1 Answer

Rough idle(200-300RPM)off idle runs great no white smoke


Have you changed your fast idle valve or air idel control valve I would change the air idle valve because it is the one with an electric sensor.

May 22, 2009 | 1990 Honda Prelude

2 Answers

Nissan Quest 2001 turns off when idle


Idle air control at base of throttle body. Passages could be plugged or idle hard stop needs adjusting.

Air Intake System Sensors Air intake system sensors include a heated resistor-type mass air flow (MAF) sensor and throttle position (TP) sensor; both supply data to the powertrain control module (PCM). The PCM also monitors engine speed.
Air Intake System Control Devices The idle air control (IAC) solenoid regulates idle speed by adjusting the amount of air allowed into the intake manifold. Adjustment is made by varying the duty cycle output by the powertrain control module (PCM). The PCM will increase the duty cycle for added mechanical or electrical loads. The IAC solenoid is combined with the fast idle control (FIC) solenoid which is turned on when the air conditioner is engaged to help compensate for the additional load. The IAC valve must be replaced as an assembly with the FIC solenoid.
Fast Idle Control (FIC) Solenoid The fast idle control (FIC) solenoid (Figure 1) compensates for idle speed change caused by the operation of the air conditioner compressor. The FIC solenoid is controlled by the FIC relay. The FIC relay is energized when the air conditioner clutch is energized and the relay allows the FIC solenoid to turn on and let an additional volume of air into the intake manifold.
Figure 1: Fast Idle Control (FIC) Solenoid
53edf6d.gif
47fb9be.gif ------------------------------------------------------
Throttle Body (TB) The throttle body (TB) controls the amount of air that flows into the engine through a single butterfly valve. The single butterfly valve opening is determined by the accelerator pedal. The TB is cast with an air bypass channel and houses several emission-related components for the powertrain control module (PCM).
--------------------------------------------------------
Throttle Position Sensor (TP Sensor) The throttle position (TP) sensor responds to the accelerator pedal movement. The TP sensor is a potentiometer that transforms the throttle plate opening angle into output voltage and sends the voltage signal to the powertrain control module (PCM). In addition, the sensor detects the opening and closing speed of the throttle plate and sends the voltage signal to the PCM. Also, the TP sensor is used to determine the air intake when the mass air flow (MAF) sensor fails. This mode of operation is called Fail Safe.
The TP sensor integrates the idle (IDL) switch within the housing. The IDL switch detects when the throttle plate is closed and an idle condition occurs. The PCM is supplied with this input signal.

IDLE SPEED

6bee6c3.gif

Apr 03, 2009 | 2001 Nissan Quest

1 Answer

Have a 1989 Honda Accord LX and my idle after warmed up, every time I come to a stop my car dies. I've changed plugs, set idle speed a number of times, it will run good for a few days and then it's right...


If you can keep the engine running with your foot on the gas at a stop it is likely to be the Idle control valve. Older Hondas' have 2 valves. fast idle control (which is prone to cause fast, or surging idle due to vacuum leakage) and the Idle control that takes over from the cold idle control once warmed up. They are located at the throttle butterfly assembly.

Jul 26, 2008 | 1992 Honda Accord

Not finding what you are looking for?
2002 Ford Escape Logo

Related Topics:

28 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

fordexpert

Level 3 Expert

5474 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...