Engine cooling fan not coming on?

it is overheating. check the thermostat and lets go over these guides to walk us through the steps to fix it.


https://www.2carpros.com/articles/engine-overheating-or-running-hot

and

https://www.2carpros.com/articles/replace-thermostat

Please run down these guides and report back.

Roy

no coolant pressure in the coolant fan hoses upper or lower coolant comes out thru the coolant reservoir i replace the thermostat and radiator cap and cooling fan motor and it seems to be fixed :) the guides really helped me. The fan comes on now.

have to carry water cause it spills out and gets hot

sounds like it is overheating. if the leak is from the cap, replace it and fill the coolant and see what happens.
if the tank is leaking, replace it, fill it and see.
otherwise you may have have a bad thermostat and if you overheated it badly enough, you may have done internal engine damage.

Roy

thank you, appreciate your help. will look into both cap and tank.

good luck

If I were you stay in your original post they're other experts here to help -You should have mentioned that your fans are not coming on

ok thanks

To Jose I have been having the same problem, I have replaced the tank and the hoses and the water pump and it is still running hot every now and then. Please let me know what worked for you.
Thank You in Advance.

Could be airlock in the system -try bleeding it out and see what happens

my reservoir starts to leak coolant when engine gets hot and usually does it after I turn it off. sometimes it sounds like the coolant is boiling on the reservoir and in the back of the engine close to the transmission my passenger side coolant fan is not turning on. I replace the fans motor and replaced the fuses and relays still doesn't turn on and I put in a new thermostat after flushing out all of the old coolant and flushed out the radiator still leaking coolant through reservoir radiator has no radiator cap so I opened the line on top of the water pump to let out any air it might of had in the system.

Any cooling system trouble codes? To check codes yourself, at the least, you need an obd2 code reader. Some of the national brand autostores will check codes for free.

How hot does the engine get in degrees F? The low speed fan comes on about 223 degrees F, the high speed comes on about 230 degrees F. Also, when you turn on ac, the fans may take off. Did you check voltage and ground at the fan/s wiring connector for the fan that doesn't work?

If your reservoir is faulty, replace it.

Check for combustion gases in the coolant?

Engine Cooling problem
2002 Chevy Malibu 6 cyl Front Wheel Drive Automatic
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my fans work when I turn on the air condtioning but do not work when engine over heats what do you think could wrong? does the pcm have to be reprogramed ?

Check the underhood fuse block for the fan relays, I think there are three altogether. One of em could be no good.

How do you check the relays to see if they are bad ?