Christina Hernandez

My 04 TL is getting hot when at a stop and the fans only turn on when the car is off but very low
Can u help me regarding this?

gatrhumpy

iTrader: (1)

When the car cools down, you should check the coolant level. In addition, check to see if there are coolant leaks under the radiator. Check the big black radiator hoses for leaks as well.

Christina Hernandez

What if I hook them up direct or to a switch will that make the fans turn on??

USNA93

You mean your AC?

01acls

Possibly low on coolant and/or air in the system or coolant leak. If not then replace the radiator and thermostat.

gatrhumpy

iTrader: (1)

The fans are wired to a thermostatic switch that come on after it reaches a preset temperature. Bypassing that could kill the battery.

Christina Hernandez

Ok I checked for leaks there's no leaks, and are both fans supposed to be on or just one? Are both fans supposed to cool down the engine? And where is is the thermostatic switch located at?

Christina Hernandez

I've changed the thermostat and radiator cap what else could be getting it hot?

Ron A

This post/thread has been moved from the Car Talk Forum to the model specific forum for better response.

peter6

1. No coolant in the system - remove cap only when engine is cold and refill it if it was low. If it was low it must be going somewhere. Find the leak and fix it.
2. No coolant flow - damaged pump, bad thermostat, or clog in the system. When engine warmed up (make sure it's not overheating) touch upper and lower radiator hoses. Also touch radiator. If all of them are (Very) hot then there must be flow. If at least one is really cold investigate.
3. Fans are not working. Car would usually overheat when standing but when driving it would be more or less fine (as some air would be forced through the radiator). Seems like your other thread mentioned some problem with fans. Did you fix it? If not then try to describe the problem more (like what you see fans doing?).

4. Unlikely here, but sometimes radiators are damaged but they don't leak - for example most of the fins are either missing or bent, so air can't get past them thus causing overheating.
5. If setting climate control on HIGH, will it help with cooling the engine?

6. Bad temperature sensor - car is not actually overheating. Use some other thermometer (like IR one) and point it to the hose/radiator. If car is boiling coolant (and dumping it to the reservoir) then it must be overheating.

Jackass

The OPs other thread covers some of this and I think the focus was on the fans.