coolant gone

Jeeps a 3.6. I had an oil change Friday afternoon. Saturday morning I drove about 30 miles, jeep began smoking from under the hood (white-ish gray, I thought it was gravel dust at first). Pulled over, the coolant cap was left off, completely out of coolant. Ended up driving it up a curb in an...

I noticed the other day that my engine fan sounded very loud as I was driving. I also noticed that the temp gauge shot up to the top twice and shot back down to normal a few times when driving. I checked under the hood and noticed I was completely out of coolant. I filled it with 50/50 and...