MAP Sensor

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

icfragoso

TYF Newbie
Joined
Sep 18, 2025
Posts
2
Reaction score
1
Hello, trying to replace the MAP sensor on my 21’ Tahoe/3.0L Duramax. Can’t seem to locate it on the engine (up top). Mechanic friend told me it is located near the DEF tank towards the rear of the vehicle. Severely confused. Anyone replaced one of these that can provide guidance? Any help is appreciated. Thank you.
 

StephenPT

Full Access Member
Joined
Jan 16, 2022
Posts
1,249
Reaction score
1,263
Location
St. Helens, OR
It's located on the driver side toward the back of the engine. This video will show you where it's located.

It definitely gets dirty and is worth cleaning every ~20K miles.

 

Forum statistics

Threads
137,672
Posts
1,989,114
Members
102,675
Latest member
j_jerry79

Latest posts

Back
Top