Well a couple days ago my radiator hose busted and all my antifreeze was drained. Anyway I replaced it along with my antifreeze and today I realized the radiator gauge drifting into the danger zone. When I started my car or when I attempted to start my car again it would fade out, so I I checked the reservoir it was full. Then I took off my radiator cap and antifreeze started spraying everywhere and as that was happening the reservoir started to fill up and antifreeze started spilling out of there too. I had water in the car so I poured it into the radiator and the problem seemed fix. That was until I turned on the AC. When I turned on the AC the car would then began running hot. I don't know whats going on obviously. Can anyone help?

When the helpful souls find this thread later and try to walk you through a 75+ post to solve your problem, you should really help them initially by telling them all of the cooling system work you've already done to your heap. It's no fun to play 20 questions to get to the place you should have started. It wears ppl out. See another recent post on the overheating issue where the OP was very thorough in listing what parts were replaced and when they were installed.

😶

Well now I'm confused. Is it the mom or the son that just answered?

Well, whoever is using the account, the statement still applies.

Son, get your own username. This one has some mileage on it.

Well the electric fan doesn't come on when the AC comes on and the jeep starts to overheat when I turn it on. The AC that is.

Unplug the electric fan. Turn on the engine and the A/C. Using a 12 volt test light, ground the wire with the alligator clip and probe the plug (coming from the wiring harness) with the icepick end. If no terminal lights the test light, you have a wiring problem farther back in the harness.

Be aware of the fact that a signal is not sent to the fan 100% of the time, even with the A/C enabled. The fan on each of my XJs cycles on and off as needed. So keep the icepick probe in for a little while.

Be careful of the mechanical fan and serpentine belt while they are turning.

If the test light lights, replace the cooling fan.

Yesterday, I turned in the engine and let the jeep run for 25 minutes, and the electric fan never turned on. I also tried it with the AC on for a short period at operating temp, and again, no electric fan. Turned it off as soon as it started drifting to the danger zone. I will test the wiring harness, but how do I test the electric fan?

Before you check the wiring harness, you may want to check to see if the fuse is blown for the electric fan..... No tools required.

Post #8

The fan motor itself can be checked by using jumper wires. Unplug the wiring connector on the fan, and use the jumper wires from the battery to route power directly to the fan. If the fan motor is good, the fan should spin at normal speed when supplied with 12 volts. Noisy bearings or a slower than normal speed would indicate a worn motor.

So what exactly do you mean by using the jumper wires from the battery to route power to the fan?

I checked the fuse and it seems fine.

This is exactly why I said what I said in my answer, post #6. I have been down this road more than once.

WNJE, follow my instructions and you will find out if it is, in fact, your fan that is bad.

Also could this be the result of a failed thermostat? Because I just flushed my radiator and the coolant keeps draining. Weird thing about it is that I don't see or hear any leaks.

One thing at a time.

Ok, here is what has been done so far, checked the fan, it is fine. The fan fuse is fine also. The jeep is still overheating with the AC on. Fan is not spinning when it starts to overheat.