Question about Cadillac DeVille

1 Answer

1995 Cadillac DeVille Concourse, 4.6 Northstar. Cannot find the IAT sensor! Have looked all around the intake boot, throttle body, air box, etc and cannot find it. The PCM says the IAT is bad (open or short). AllData indicates it should be located near the MAP and TPS sensors but, nothing in that arear and no harness or plug found either???

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Cadillac Master
  • 8,984 Answers

#9 in the pic

1995 Cadillac DeVille Concourse, 4.6 Northstar. - 0900c1528025ed42-kkceyalxgv1x3gacwtllo1ys-3-0.gif

Posted on Sep 24, 2017


6 Suggested Answers


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017



  • 1010 Answers

SOURCE: 1994 Cadillac DeVille Concourse - Runs rough?

The "check engine" light will "light" when there is a malfunction in the engine management system. The fault code is then stored in the computer. The computer must be scanned to retrieve these stored faults to pinpoint the malfunctioning component. We recommend buying your own scanner and doing it yourself. With a pocket scanner you can check for fault codes to find out why the light came on in the first place. You can clear your cars trouble codes after you replace the malfunctioning sensors.

Posted on Jun 26, 2008


  • 337 Answers

SOURCE: Need to find IAT sensor

Posted on Mar 12, 2009


  • 651 Answers

SOURCE: 94 cadillac concours deville 4.6 northstar ,

replace fuel filter first. cheapest and easiest.

Posted on Jun 10, 2009



  • 2007 Answers

SOURCE: 2001 Ford F-250 need location for IAT sensor

In the intake manifold on drivers side by the fuel rail. It's not part of the MAF. Intake air temperature.

Posted on Jun 15, 2009


  • 3 Answers

SOURCE: IAT sensor location

Don't even bother installing that, it won't do you any good! Check out the reason why here.

Posted on Aug 31, 2009

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2005 Chrysler Sebring p 0688 engine code I believe it is the IAT sensor but I don't know where it's located

Look around the intake boot/air box area which goes into throttle body...should b a sensor around that area...check the little 2wire probably sensor if its plugged in..may need to b replaced..

Sep 02, 2014 | Cars & Trucks

1 Answer

!996 Deville, Northstar 4.6. idles at 1700 to 1800rpm and won't slow down. If I hit the accelerator the rpm will remain at the highest speed. I have cleaned the throttle body (twice), changed the

Ok if you changed the idle air control and there are no certain vacuum leaks and your sure. This only means the intake intake manifold in the area of the IAC has A.carbon plugging it. B.A chunk is lodged in side the channel. I recommend cleaning your intake manifold with the best cleaner with AMSOIL or Seafoam and lets not forget the old trusty air compressor hose to to force the stuff out.
Also do the IAC reset procedure maybe the IAC was disconnected while the engine was running and this has made the PCM and the IAC out of sync.
Also the throttle position sensor needs checked as well to make sure it is idleing back and the butterfly is actually closing all the way in the throttle body. Carbon build up is common around the butterfly valve which causes it to stay open further.
Also lets not forget the Intake Air Temperature sensor.
All these items need checked and completed and eliminated from the list of what else it can be.
If I can assist you any further let me know
Please dont forget to rate my solution. Thanks in advance

Apr 21, 2012 | 1996 Cadillac DeVille

1 Answer

Looking for the iat senser on 1995 chevy silverodo 3500 it has a 454ci engine

The IAT (intake air temperature) sensor if it has one is in the air intake snorkle to the throttle body. But I`m pretty sure this year didn`t have one until 1997. If you mean IAC (idle air control) solenoid its on the side of the throttle body, black box with square 4 wire connector.

Feb 02, 2011 | Chevrolet C3500 Cars & Trucks

1 Answer

1994 cadillac deville concourse. In what location is the startion bendix ( pinion wheel) attach to the flywheel.

Hello: This model has a Northstar engine. The starter is under the intake manifold, you first have to remove the silver cosmetic cover then the intake manifold. Please disconnect the battery first.

Jan 27, 2011 | 1994 Cadillac DeVille

1 Answer

Where is the erg valve located on 1995 cadillac deville engine

4.9 engine sits on top of intake manifold toward the windshield. work s off engine vaccumn. Make sure it is getting vaccumn to check put car in gear hold foot on brake and oppen throttle briefly while you hold the open end of the line if working then the EGR solenoid is working. When you remove the valvr make sure there isn't any carbon build up blocking the flow of exhaust gases. remove throttle body there are two tubes make sure they are not plugged if engine is northstar valve is on driver side toward windshield on top with an electrical connector looks like ablack 4-5 inch can

Aug 22, 2010 | 1995 Cadillac DeVille

1 Answer

Where is the Intake Air Temperature Sensor or the (IAT)Sensor on a 2004 JEEP GRAND CHEROKEE LAREDO 4.0 .??? I Have A Boss Performance chip that i would like to install....Thank's..

The air temperature is taken between the air filter and the throttle body. Look in the roof of your air cleaner box. (usually 2-pin plug) After the air cleaner, the tube that sends the air to the throttle body has the mass air flow sensor in it.(usually 4-pin plug)

Apr 29, 2010 | 2004 Jeep Grand Cherokee

2 Answers

Code came back as iat sensor reading high

IAT stands for Air Intake Temperature Sensor and it is located in the intake tube coming from the air filter box tot he engine. Easiest way to find it is look at the top of your engine where it says 2200. Coming right out of that manifold is a black ribbed tube about the size of a baseball to softball. It should be going towards the direction on the front drivers side. on the back side of that tube, about 4 inches away from the intake manifold (the things that says 2200) is a plug with wires. That is your IAT Sensor. If it is unplugged, plug it back in. Otherwise unplug it and replace it. Make sure to disconnect the battery while you do this so the computer resets itself after the new one is installed. Thanks and please don't forget to rate!

Jul 15, 2009 | 2001 Pontiac Sunfire

1 Answer

Location of iat sensor on 1992 suburban

Senses incoming air, so look at air intake hoses, housings etc from front of vehicle to throttle body . Sometimes on intake manifold but usually on intake housing (snorkel)

Jul 11, 2009 | 1992 GMC Suburban

1 Answer

Need to know where IAT sensor is located

Check your air intake duct & area or front area of throttle body . It should be sticking out a little inside hose or throttle body to sense incoming air.

Jun 01, 2009 | 1995 Chevrolet Camaro

1 Answer

Cnt find iat sensor on 2005 chevy cobalt ss supercharged

The IAT sensor is most of the time located along the intake tube right after Between the throttle body and MAP sensor. Just follow your air intake tube from your air filter housing to the Throttle body.
Good luck. 

Apr 09, 2009 | 2005 Chevrolet Cobalt

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

Related Topics:

186 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

85222 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

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

Answer questions

Manuals & User Guides