I own a 95 F-150 XLT with 4.9L I-6. I have blown 2 radiators in the last 2 years and I don't know why. The blow outs are in the same place, the main hose on the upper driver side of the radiator. When I changed out the first one, I also changed the thermostat. The second radiator I put in came out of a 95 F-250 and was a double core heavy duty. Both times the radiators have blown while climbing up mountains, but were not loaded down to much. The first time I was heading camping with my family without towing a trailer, and the second time I was getting rid of old shrubs that we pulled out. Any ideas of what to check will help. I am deployed to Afghanistan and have not had a chance to look at the results of the second blow out or know what the truck was doing before it went. But the first time it happened the temp gauge went from normal to hot in a matter of seconds then the radiator blew. Thank you for any help that is given.
Last edited by bigcountry66; 08-11-2014 at 11:49 PM.