2000 explorer xlt 4x4 ( esl)

[Citrus-Blazer]

I have a 5.0l with a service engine light on , truck runs great no problems no misses , it has 124,000 . i was wondering if the o2 sensor could be the problem? can i check the codes at home? thanks for any help

 

[my pos mounty]

Autozone would be most happy to run your codes for you, as would most auto parts stores.

 

[Citrus-Blazer]

ok thanks