One problem related to engine cooling system has been reported for the 2007 Chevrolet Colorado. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Chevrolet Colorado based on all problems reported for the 2007 Colorado.
Bottom radiator hose chafing. We have two 2007 Chevrolet Colorado's as part of our fleet vehicles. Colorado #1 overheated and had to be towed due to a hole in the bottom radiator hose caused by constant rubbing against the frame rail. Colorado #2 bottom radiator hose was inspected and it also was damaged due to friction from the frame rail. Luckily we discovered the damage in time and had it replaced before it failed.