Engine Cooling problem
1999 Chevy Blazer 6 cyl Four Wheel Drive Automatic 170000 miles

my blazer started over heating this morning when i got home this afternoon i changed out the thermostat and added a little water to the radiator before putting the cap back on i started the blazer to make sure that the water was flowing after a few mins i could tell that the new theromastat was opening like it should but my car is still over heating

do you have any leaks any where.

my 98 did that i had a leak in the water pump but it was so small you couldnt see any drips i replaced the water pump and it stopped over heating