I may be confused?, Is the concern the rising temp or the knocking noise or both?
To help you to get under the hood quicker, have the lovely counter part :wink: in your avitar drive or shut off the car while you are already looking at what is going on.
The cyling of the cool down is probably the fan coming on when your temp is rising to its maximum. If it isn't going into the red or danger zone, I wouldn't worry about it.
The gauge may not be accurate. There is a coolant temperature sending unit for the gauge that may be bad and giving wrong readings? But maybe I'm misunderstanding the concern.
Saturday, December 30th, 2006 AT 9:52 PM