What To Do If Radiator Fan Is Not Working. Youll need to locate and test the engine temp sensor. Air Conditioning Not Working in Your Car.
Up to 20 cash back If the fan is kicking on with the ac but not with overheating you will want to use a scan tool to see what the system is reading as an input for coolant and if the system is sending an output. Youll need to locate and test the engine temp sensor. At this point you did about all you can do at home to diagnose and replace components on this issue.
The thermo switch also called the cooling fan switch sends a signal to the cooling fan so the fan turns on if the coolant gets too hot.
The fan in my 90 geo metro just suddenly stopped working one day. For years now in stop and go traffic the AC would get warm within a few seconds of stopping and wouldnt really start to cool off until Id get up to about 30mph for a few seconds and wouldnt get ice cold unless I was going 50mph. If your Rendezvous has a bad engine temp sensor the radiator fan wont know to come on because the ECU wont know how hot the engine is. The most common causes of broken air conditioning are leaks or compressor issues.
