From: Paul@Houston.Texas   
      
   Tom Del Rosso wrote:   
   > 2014 Jeep Compass overheats (red light) if it goes gradually uphill for   
   > a long time, like driving away from the coast. On the return trip   
   > downhill it doesn't happen.   
   >   
   > Turning the heat on brings it down very fast. Is that just because of   
   > where the sensor is, or is it really cooling the engine coolant?   
   >   
   > Does all this point to the need for a radiator flush or what?   
      
   Things to check.  First one first:   
   Radiator fins clogged with dirt and debris.   
   Thermostat may not be opening all the way.   
   Radiator fan (or fans) may not be turning on.   
   Temp sensor (or sensors) may be going bad.   
   Hoses may be collapsing.   
   Cooling systems rarely clog up, unlike in the old days.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)