P0118 is a fault with the Engine Coolant Temperature sensor and it can cause the the symptoms.
There is coolant leakages in the system and you need to locate and rectify the problem. If visual inspection does not reveal anything, a leak down/pressure test would be required to locate the source of the leak.
When coolant level is correct, and problem does not occur, then rectifying the leak should solve the problem. If it occurs most of the time, even after topping up the coolant, then you would have to diagnose and tectify the code.
Thursday, November 4th, 2010 AT 10:06 PM