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Dan
Dan, Technician
Category: Chevy
Satisfied Customers: 23683
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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04 chevy 5.3main oxygen sensor location

Resolved Question:

04 chevy 5.3main oxygen sensor location
Submitted: 7 years ago.
Category: Chevy
Expert:  Dan replied 7 years ago.

Here is a picture location of the oxygen sensors. Let me know if you have questions. Thanks

 

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Customer: replied 7 years ago.
which one would be the main oxygen sensor ?
Expert:  Dan replied 7 years ago.
There really isnt a "Main" oxygen sensor. If you can give me the diagnostic code you had I can tell you which one. Thanks
Customer: replied 7 years ago.
auto zone called it mass air flow sensor
Expert:  Dan replied 7 years ago.

Ok the mass airflow sensor is not an oxygen sensor. Here is a picture location of the oxygen sensor. If you can go to autozone again and have the code checked again I can tell you if thats a problem for sure. Its an expensive sensor to THINK that might be the problem and replace. But here are replacement instructions, let me know if you have questions. You can reply to this answer at anytime even after you accept, thanks.

 

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Dan and 5 other Chevy Specialists are ready to help you
Customer: replied 7 years ago.
thank you dan
Expert:  Dan replied 7 years ago.
No problem, let me know if you have more questions or want the problem verified when you get the code. Thanks