Because the vehicle was overheating during NORMAL driving on the highway, which sometimes involves climbing hills or steep grades at high RPM (up to 4k or more at times). This is normal driving when you are traveling on the highway.

It happens a lot slower in real cases, the temperature creeps up. I don't have time to go drive on the highway for hours to see if it heats up so I do something I know will make the engine heat up, and compare the results to see if changing something makes the engine run hotter or cooler.

Last edited by Nukeiridium; 08/08/09 05:01 AM.
2002 Sportage 4dr 4x4 soon to undergo an Extreme Makeover!