Having problems with your 2004 Chevrolet Colorado ?

Engine lite on, code says o2 sensor. changed a week ago both of them. now the o2 is on agian, another code for IAC.

Posted / edited by AnonymousUser on : 21-01-2019

Answers :

It may be loose or faulty wiring causing it to come on again, I would check the connections.
Repair Help & Product Troubleshooting for 2004 Chevrolet Colorado

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