Overheating While Idling on Incline
I've been experiencing a problem since Friday where when I'm in turn lane near my house waiting for the light to turn, the engine fan starts running loud and yellow engine temp light comes on.
If I turn off the A/C it begins to go away and it never goes to the red engine temp indicator. It only occurs when I'm sitting at that light that has a roughly 5% incline. After the turn, the fan and the temp return to normal after a minute.
I checked the coolant level and the oil level, both fine, and replaced the water pump at the end of 2010, 20K miles ago, but not the thermostat. Could the water pump have gone out again?
The car is only experiencing the problem in that one place. Should the incline matter?