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Running temperature

Mike IRL

Mike IRL

New member
Hi,

I replaced one of the front rads a month or so ago due to a leak. Everything fine since until during the week I noticed that the car was slow (seemed slower than normal ) to reach usual running temp. Same day I was on a long journey and also noticed stable temp had dropped to around 65 degrees.

Any ideas?
 
hi would say the easiest and cheepest thing to check and change first is the thermostat check it by feeling your radiators while the car is warming up they should not get warm until the car is at running temp if they get warm then your stat has stuck open and requires replacment
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Could be an airlock that hasn't cleared and it moved to around the temperature sensor area hence the temperature drop as air is a poorer conductor. After I had the coolant tank replaced, it took about 2 weeks for the coolant level to stop dropping which indicated that air was slowly being purged from the system over that time. The old Porsche way of clearing airlocks goes something like this : lift the expansion valve clip on the expansion tank, get the car up to temperature and rev the car every so often to over 5000rpm. Richard Hamilton is probably the person to ask for the exact procedure. Of course it could be unrelated to the radiator change and still be the thermostat.
 
I was thinking of thermostat. How quickly does it normally take your car to warm up to running temp? I've always found the 996 quite slow.
 
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