redeyss Posted February 24, 2005 Share Posted February 24, 2005 Hi, this is my first post, and I must say, what a great web site. Usually I've found the info I need w/o posting, until now... I own a 99 Legacy GT and I'm getting slight engine surge due to the radiator fan switching on and off. This happens while the car is warming up to regular running temp. After it reaches temp the surge stops. There is an audible click when the fan starts and stops. It's more annoying than anything but I'd like to know if I should worry about it and if I can fix/stop it. Also, why would the engine fan come on when the engine is cold? The car has 75k and runs great. The thermostat never budges once I reach running temp. Link to comment Share on other sites More sharing options...
Tiny Clark Posted February 24, 2005 Share Posted February 24, 2005 Are you sure it's not the A/C system kickin the fan on? If you have the heater in defrost, the A/C is operational. Link to comment Share on other sites More sharing options...
Setright Posted February 24, 2005 Share Posted February 24, 2005 Yep, that's gotta be the AirCon. Idle will jump 2-300 revs. Link to comment Share on other sites More sharing options...
redeyss Posted February 25, 2005 Author Share Posted February 25, 2005 Yes, I almost always have the heater on windshield defrost. It does jump 2-300+ RPM on idle and I get a loss of power while driving. Can I switch it to a different setting to avoid the engine surge? Thanks. Link to comment Share on other sites More sharing options...
Tiny Clark Posted February 26, 2005 Share Posted February 26, 2005 Well, as long as you aren't in the defrost position, mine's all the way to the right, then you are fine. I usually drive with the windshield and foot heat on, then turn on the A/C as needed to keep the windows from fogging up. Link to comment Share on other sites More sharing options...
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