Fans not kicking on - Toyota Nation Forum : Toyota Car and Truck Forums

topkatt · 07-17-2009, 04:44 PM

Hi I am new to this forum, i have 91 camry dx 4cyl and jut recently my brothers flushed my radiator and added coolant becuase I had overheating thing going on and he saw rust in my radiator so they fixed that and now neither of the fans are coming on and the ac is not coming on I looked for the coolant temp switch but am not sure witch one it is I am going to get a fuse for the ac i want to know how do I locate the coolant temp switch? it's not overheating but those fans not coming on can't be good my brother says he smells a oil smell when he drives for a while i only go the store and doctors so i don't go very far but I don't want to get out somewhere and have a major problem can someone please give me some help thanks

white90dx · 07-17-2009, 05:08 PM

The coolant temp switch that controls the fan operation is located on the water inlet / thermostat housing. You can find it below the alternator covered by a rubber boot.

With the enging running, try unplugging that connector (it only has one wire going to it) and see if the fans turn on.

Also, if you are doing short trips, the fans may not need to turn on ever. In highway driving, they should never turn on...

-Charlie

topkatt · 07-18-2009, 01:52 PM

Thanks White 90dx we found it and disconnected and that's not the problem but my brother pulled the no1 relay switch and put it back in and the fn came on so now we have to find out why the ac fan is not working and why the ac is not coming on so I will start with the fuse first do you have any suggestions on where else to look? I really like my toy although it has over 200 thousand miles on it but due to limited funds and now little things are going out on it I may have to sell it and find something else but I will keep fixing those things that I can afford.

white90dx · 07-18-2009, 02:04 PM

When the A/C is on, both fans should be on at half speed, when the fans are on to cool the radiator, they are both on high. The "A/C" and "Main" fans don't have a real meaning...

-Charlie

PS. If one fan is not working, the other fan will run at full speed.

topkatt · 07-18-2009, 03:34 PM

Thanks Charlie I really like this site it is very helpful. Would happen to know why my ac is not coming on it does not light up and the button does not appear to stay in when I push it.

Kathy