What is IAT?

[Bigstick]

What is IAT?

 

[THerman]

I nlet A ir T emp



It measures the temperature of the air inside the intake manifold. Fueling and timing are adjusted by the computer based on this temp. (Most autos have one in the air filter housing)



Many here have had problems with this sensor that has adversely affected mileage. It costs ~$15 at a Cummins shop and is harder to locate than it is to change.



Tod

 

[KEarnest]

Tod,



Do you have that Cummins part number handy for the IAT sensor? I ordered my last one from Dodge for $22 but a couple of the "5 Star" dealers I called wanted $35



Thanks,

 

[THerman]

I don't have the Cummins part # handy...

I'll see if I can get it and post it.



Just call the Cummins shop... and have your Engine Number (on plate on drivers side front) handy.



I was in picking up a new lift pump when and got the IAT sensor while I was there.



Tod