Radiator Fan Not Working On High Speed

Can manually turn on high speed with scanner high speed will not modulate on its own.

Bathroom fan exhaust cover. Exposed or chafed wiring can cause short circuits than can affect the operation of the radiator fan while bad connections cause high electrical resistances that can affect how fast a radiator fan rotates or even prevent a fan from working altogether. Engine temperature rises to 219 before low speed fan comes on and cycles at 212. Make sure that engine temperature reaches about 2200f 1040c and the radiator tank temperature rises accordingly meaning hot coolant is being transferred to the radiator.

Radiator fan does not work on high speed answered by a verified cadillac mechanic we use cookies to give you the best possible experience on our website. I have had a lot of people ask me about gm radiator cooling fan diagnosis in the past. When the ignition is on and you pull it the fans should kick in and turn slow speed.

Whenever the engine would start the radiator fan would start spinning. Fast speed and slow speed fan should start turning. If temperature remains fairly steady around 2000f 930c or less the temperature switch or sensor may fail to trigger the radiator fan on.

This was made possible through a belt that derived power from the engine. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. You can also put direct power by pulling the fan plugs and putting on power and ground to them.

It is for the fan module. It basically runs two fans in series for low speed and then puts each. If you have tried everything mentioned above and your fan is still not working then that means it is time for you to invest in a new one.