Question about Ford Expedition EL

2 Answers

I am looking for my IAT or my CTS in my 06 expedition . do you know where it is ?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Ford Master
  • 783 Answers

IAT inlet air temp sensor is part of the MAF sensor. It is the 2 outside wires of the MAF conector

Posted on Jan 31, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 50 Answers

Intake Air Temp should be somewhere in the air intake hose. The big black ducting that leads from the air filter to the motor.  The coolant temp sensor should be on the intake by the upper radiator hose and the thermostat.

Posted on Jan 31, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

I'm looking for the IAT sensor on a 2009 Cadillac CTS w/3.6L RWD


could be in the air cleaner box ,should be before the maf sensor

Feb 11, 2013 | Jeep Grand Cherokee Cars & Trucks

1 Answer

1993 mustang 2.3 liter error code 111


The IAT (Intake Air Temperature) sensor is a thermistor that varies resistance based upon the temperature of the engine intake air. Usually a two wire sensor. One wire is supplied 5 Volt from the PCM (Powertrain Control Module) and the other is a ground. The PCM monitors the change in the 5 Volt supplied to determine air temperature. When the intake air is cold, the resistance is high, resulting in a high signal voltage.


When the intake air is warm, the reistance is low, resulting in a low signal voltage. This code means that the PCM saw a larger-than-normal change in a shorter-than-expected time on the IAT signal circuit.




Since this code is likely pointing to an intermittent problem on the IAT circuit, there may not be any symptoms at present. However, the MIL will likely be on. The car MAY exhibit some drivability problems, but it is more likely that there will be no noticeable symptoms to the driver.




Potential causes of the P0111 DTC include:
a bad IAT sensor
an open in the signal or ground circuit
a short to ground on the signal circuit
poor connection at sensor or PCM




Possible Solutions:
If there are other IAT codes present, diagnose them first. If not, then, using a scan tool verify the IAT voltage with KOEO (Key on engine off).


If, on a cold engine it reads the same as the CTS (Coolant temperature sensor), then the problem is intermittent. But if the IAT reading isn't the same as the CTS refer to diagnostic procedure for P0110. If your scan tool has a freeze frame failure records feature, use it to see what the IAT reading was at the time of the failure. If the reading was at negative 30 or so degrees F (indicating it was at the extreme coldest reading), then there was an intermittent high resistance reading on the IAT signal circuit.


Check for an open ground on the ground circuit and signal circuit. If they are OK, try raising and lowering the temperature of the IAT sensor artificially. Do this by removing the IAT and putting it in a freezer and then applying heat with a heat gun (be careful not to apply too much heat to the IAT with the heat gun or it'll melt the sensor). Watch the resistance change using an ohmmeter attached to each terminal. It should vary smoothly with no sudden jumps. If the reading jumps suddenly, then repace the IAT sensor.


However if the freeze frame reading was at the highest extreme (above 250 deg. F) then there was an intermittent low resistance on the signal circuit. Check for a short to ground on the signal circuit. If it appears OK, then do the above artificial heat test and replace the IAT as necessary. If the problem can't be duplicated, use a voltmeter to watch the signal voltage as you "wiggle" test the wiring harness. Watch for a sudden change in voltage indicating a short or open. Replace IAT as necessary.


This is a pretty simple code and it only really looks for extremely short changes that are relatively high in voltage. It's usually the sensor that is bad unless the vehicle is extremely old, in which case there may be harness problems.




Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

May 22, 2012 | 1993 Ford Mustang

1 Answer

Where does the cannister purge valve go? I have a 06 Cadillac CTS and already have the part. Just don't know where it goes.


LOOK ON THE UPPER REAR PART OF THE THROTTLE BODY.THATS WHERE CANISTER PURGE SOLENOID LOCATED.

Jun 06, 2011 | 2006 Cadillac CTS

1 Answer

Hi I own a 2003 Cadillac CTS I am getting a check engine light error light with code P0128 and my heat is fluxuating up and down I have already installed a themostat. What are my options


A code P0128 may mean that one or more of the following has happened:

1-Low engine coolant level
2-Leaking or stuck open thermostat
3-Faulty cooling fan (running too much)
4-Faulty coolant temperature (ECT) sensor
5-Faulty intake air temperature (IAT) sensor

Check coolant level
Check to make sure thermostat is functioning properly Check the Cooling fan Check the ECT sensor Check the IAT sensor If all else fails replace the thermostat

Jan 05, 2011 | 2003 Cadillac CTS

1 Answer

It has no power to coil and the voltage to the tps and iat and temp sensors is to high 5.4 volts allready replaced the pcm


Tps, iat and cts sensors run on 5 volt reference. You have no power to the coil when cranking right? Have you checked the Auto Shut Down Relay?

Mar 30, 2010 | 1996 Dodge Ram

1 Answer

Where is my IAT sensor?


This is just a wild answer. The IAT is intake air temperature sensor. Most of them are located in the rubber ductwork going to the engine. It should have two wires going to it. Some were put into the intake of the engine itself. I am not very familiar with the CTS-V so this is just a guess.

Oct 11, 2009 | 2007 Cadillac CTS-V Sedan

2 Answers

LOCATION OF -ATC(MAF/IAT) & CTS SENSORS-2007 nissan frontier 4.0


maf is mass air flow sensor, it is on the air filter box, iat is intake air temp sensor, should be in the tube from the air filter box. don't know what atc and cts are sorry. best of luck

Aug 06, 2009 | 2007 Nissan Frontier SE Crew Cab

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

509 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

60960 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Fordexpert

Level 3 Expert

5331 Answers

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

Answer questions

Manuals & User Guides

Loading...