My 2004 Colorado is. Overheating without a/c

What is your question?

I can drive for 5 miles or so. It gets to quarter two halfway. I drive roughly about 15-20 miles and come to a stop and I can hear it bubbling from inside the car from the reservoir and this only happens in warmer months

What makes this problem better or worse?

When weather gets hoter

How long has your 2004 Chevrolet Colorado had this problem?

2 years