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Steve, Service Manager
Category: Chevy
Satisfied Customers: 5494
Experience:  25+ Years experience as a professional working automotive technician; ASE L1 master technician
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2004 suburban: the IAT sensor located..correct one

Customer Question

where is the IAT sensor located on a 2004 suburban? how many wires does it have? How can I tell if it is the correct one?
Submitted: 9 years ago.
Category: Chevy
Expert:  Steve replied 9 years ago.


Your engine does not have a separate intake air temperature sensor; the air temperature is integrated into the mass airflow sensor. Intake air temp signal is carried on the tan wire in cavity B of the mass airflow sensor electrical plug.

The mass airflow sensor is mounted between the air cleaner hyusing and the throttle body; teh incoming air passes through the MAF sensor.

Steve and 4 other Chevy Specialists are ready to help you
Customer: replied 9 years ago.
If that is the case is the coolant temperature sensor easy to find?
Expert:  Steve replied 9 years ago.
Yes, the engine coolant temperature sensor is located on the drivers side of the engine, screwed into the cylinder head, just in front of the exhaust manifold (just above the #1 spark plug). It has 2 wires.
Customer: replied 9 years ago.
Thanks for your help!