2006 Hummer H3 Q&A

2006 Hummer H3 Question: Check engine light comes and goes at random

Check engine light comes on for a short time and goes off. This happens at random. -
Answer 1
Had that same problem and now it finally came on all the time. I am told it is my Coolant Temp Sensor. I was told to check my Coolant levels because that could cause the problem. -