replies Archived Message
Posted by Darren Bamford on May 10, 2006, 7:58 pm, in reply to "Re: Rover 25 2001 coolant fan fault/ECU"
Just because new parts are fitted does not mean they are OK Your words "if I get the engine hot and watch the live data the temp go's up to 99' and the water in the exp/tank go's mad but the fan will not run". All K series engines that have MEMS 1.9 Or MEMS 3 ( NON A/C)) the ECU will not cut the fan in until 104 degrees C Most liquids have a specific "boiling point", which is the temperature at which the liquid begins to change to a gas. If pressure is applied to the liquid, it must become hotter before it can boil. Pure water in a cooling system will boil (at sea level) at 100° c. At higher altitudes, atmospheric pressure is less than at sea level. Example: Water at 5,280 feet will boil at a mere 93° c. A cooling system that is under 15 pounds of pressure however, will now allow the water to reach nearly 120° C before it can boil. If your car is boiling before the Fan cuts in it most be open to atmosphere pressure some were???? HTH Daz..................
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Message Thread:
- Rover 25 2001 - Cooling fans do not cut in - Tom Yates May 10, 2006, 6:01 pm
- replies - Darren Bamford May 10, 2006, 6:51 pm
- replies - Dave May 10, 2006, 6:55 pm
- replies - Tom Yates May 10, 2006, 7:21 pm
- replies - Darren Bamford May 10, 2006, 7:58 pm
- replies - Nigel Bennett May 10, 2006, 9:37 pm
- replies - Tony Sefton May 10, 2006, 10:20 pm
- replies - mike g May 11, 2006, 3:11 am
- replies - Tony Sefton May 11, 2006, 7:25 am
- replies - mike g May 11, 2006, 8:43 am
- FIXED - Tom Yates May 11, 2006, 9:23 am
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