Turns out every time the check engine light came on because of one of the cooling fans they just replaced the fuse.....and wouldn't you know it a couple months after I buy the car the check engine light comes on. The heat works ok with one working fan but the A/C is pitiful! The part might not be expensive but the labor to get to it is where your money will go!

While driving normally, SES light came on, the car began to overheat fairly significantly, and I took it to Chevrolet, They replaced the fan, and engine light went away, car still overheated, but the fans were working.