Question about Cars & Trucks
I checked the relay with a 12v power source and I applied power to number 1 and 2 terminals and ran my ohm meter from the 3 and 4 terminal,well it clicks like it suppose to but it has no resistance when I check 3 and 4 pins
Year make and model. 3 and 4 wouldn't have resistance. they go to 2 separate things. You would have to check 3 and 4 for power and ground. At the relay , you should have 2 power points, with the key on(we'll say 1 and 3). the others will be ground, One will go to ground(the fans). the other is grounded by the ECM. Which only grounds it after around 200 degrees. Resistance is checked with the power off and checking between the relay and ignition, ECM or fans.
Posted on Dec 10, 2014
Testimonial: "So what you are saying that 3 and 4 ground the cooling fans.So how should I check it to see if it is a relay problem"
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Posted on Jan 02, 2017
SOURCE: Cooling fan wont work
The water temp sensor is located near the thermostat housing. This sensor is what tells the ECM to turn the fan on/off. The water temp sending unit is located near the same area. You know you have the correct sensor is because the water temp sensor has a 2 prong plug. The water temp sending unit only has 1 prong.
Posted on Sep 27, 2008
SOURCE: Blower motor stopped working
most common is the blower motor resistor or "module" going out. but if you have 12volts to the resistor the motor should work on "HI" but not on any other speed. if it doesnt work at all, you might have a bad motor. just to be safe id replace both. neither one is too hard to replace. three 5/16" bolts for the motor and two 5/16" for the resistor they are both under the glove box
Posted on May 12, 2009
SOURCE: Here's a wierd cooling fan issue
Thats not too weird as the car would kick on the fans at full speed when it detects a problem with the sensor. Your ECU is not reading the sensor properly and needs to be checked by Ford. I hope this helps you.
Posted on Jun 21, 2009
if you have check the fuses for the fan and they are good,you need to replace the blower motor resistor.
Posted on Dec 21, 2009
Testimonial: "I appreciate the insight,fuse is OK - where is the resistor?"
Hello there, i think i can solve your problem , check fuse 3 under the hood it should be a 5 amp if its not the check the closest 5amp to that, check to see if it blown if it is blown then your power steering fan is now working as well as the cooling fan, if that is the cause you will need to replaced the power steering fan as well as the 5 amp fuse, and also in addition you will need to sepate the power steering fan from the cooling fan. Mini parts sells a harness to separte the 2 fan
Posted on Apr 06, 2011
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