Quote:
Originally Posted by Phil Schuyler
I did not want my initial post to become longer than it was so I did not go into too much detail about the filling process. I did just what you stated.
Here's how I fill the system:
Install radiator drain plug
Intall thermostat
Fill engine block at the upper radiator hose connection.
Fill radiator from the expansion tank. (turbo)
Continue to fill the radiator from the small tank-to-radiator hose.
Start engine and allow to come up to temperature while checking to see if the thermostat opens.
The front of the car is on jack stands about 18" tall.
Any other ideas?
Phil
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You've filled it properly..........no question about that.
I will relay my own issues with the same engine on the SD, also with 230K miles.
About two years ago, the gauge began climbing toward 100C. In the last two years, I've changed the radiator, thermostat, and fan clutch. I also recently changed the gauge cluster for other reasons. The temperature gauge changed with the cluster. None of these items made a damn bit of difference. The engine runs 95-100C independent of ambient temperature. It can be 15 degrees or 100 degrees..........the engine temp does not vary.
I did take a infrared gun and checked the head. It runs 90-92C. depending on the cylinder and the gauge is reading 98C.
So, like yourself, I really don't have any good answers for it other than a slight error for the sending unit..........maybe 6 degrees or so.
I will tell you that the engine doesn't really care if it runs hotter............in fact, your fuel economy will probably improve. The SD gets an average of 29 in mixed driving.