ComingSoon Posted June 20, 2007 Share Posted June 20, 2007 hi .. im new to this website. i was wondering if anyone can help me to find out if my radiator fan is working.? seem like its not working. its a 91 ls400 . i try to test it by keeping the car on while it was on park and turn the ac to full and kept about for 2-3 min then pop the hood and saw its not working so please help me how to make sure thats its working or not. Thank you all ! Quote Link to comment Share on other sites More sharing options...
qha_vn Posted June 20, 2007 Share Posted June 20, 2007 pls follow this manual cooling_fans.pdf Quote Link to comment Share on other sites More sharing options...
ComingSoon Posted June 21, 2007 Author Share Posted June 21, 2007 pls follow this manual hello thank you for the help. however i was unable to troubleshot the fan.! i was wondering if there is anyother easy or short way to test the raditor fan.! i really thank you guys for the help in advance ! Quote Link to comment Share on other sites More sharing options...
qha_vn Posted June 22, 2007 Share Posted June 22, 2007 just to make sure that we are talking about the same thing, do you mean the 2 electric radiator fans just behind the horn and in front of the radiator? if yes you can follow the manual to find the radiator fan connector, unplug them then using 2 wires to connect directly to your battery to see if they work (each fan at a time). it might e the easiest way to make sure those fans are still good be sure you disconnect the negative (-) terminal of the battery before working on the car by the way, is your car running hot? the water temp gauge should stay in the middle if normal, if higher your engine may be running into problem Quote Link to comment Share on other sites More sharing options...
ComingSoon Posted June 22, 2007 Author Share Posted June 22, 2007 just to make sure that we are talking about the same thing, do you mean the 2 electric radiator fans just behind the horn and in front of the radiator? if yes you can follow the manual to find the radiator fan connector, unplug them then using 2 wires to connect directly to your battery to see if they work (each fan at a time). it might e the easiest way to make sure those fans are still good be sure you disconnect the negative (-) terminal of the battery before working on the car by the way, is your car running hot? the water temp gauge should stay in the middle if normal, if higher your engine may be running into problem yes it is running slighty higher then middel very little. so i was thinking maybe ma electric fan is not kicking in at alll. so now tell please what should i look into or what could be the problem Quote Link to comment Share on other sites More sharing options...
qha_vn Posted June 22, 2007 Share Posted June 22, 2007 yes it is running slighty higher then middel very little. if its the case for the temp gauge, nothing to worry about Quote Link to comment Share on other sites More sharing options...
flanker271 Posted June 22, 2007 Share Posted June 22, 2007 Your temp gauge is perfectly normal. If you count the marks starting from the lowest mark (meaning count mark "C" as one), the needle should sit slightly above the 3rd mark on a hot summer day with A/C on sitting idle in traffic. Quote Link to comment Share on other sites More sharing options...
ComingSoon Posted June 24, 2007 Author Share Posted June 24, 2007 Your temp gauge is perfectly normal. If you count the marks starting from the lowest mark (meaning count mark "C" as one), the needle should sit slightly above the 3rd mark on a hot summer day with A/C on sitting idle in traffic. ummm yes but my ac is never on another hand when i drive the car on highway around 60miles its comes back to exactly at the midddle level.! and by the way how come my radiator fans never comes on even when i drive for stright 1 hour or so or even i run the ac for couple of minute any idea ?.. when should the radiator fan kick in ? Quote Link to comment Share on other sites More sharing options...
j.barleycorn Posted July 21, 2007 Share Posted July 21, 2007 Per the manual for a 1992... This vehicle is equipped with two electric cooling fans to help cool the radiator. When the air conditioner compressor is operating, the fans operate slowly, and when the radiator temperature increases, the fans operate rapidly to help cool the engine. Quote Link to comment Share on other sites More sharing options...
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