OK, so I've got a really weird situation going on with my '07 Sahara unlimited. The A/C was started acting up a month or so ago and I started to try and fix things by replacing the thermostat, and doing a radiator flush. After doing that it seemed fine for a week or so but it started acting up again except now the horn goes kaput along with the A/C and my blinkers. I started doing research again and replaced the coolant temperature sensor last night and that didn't fix the problem. I've noticed that when I spin the fan before I start the Jeep it'll work for a day or day or so but goes right back to acting funny. I'm thinking I'm going to go ahead and replace the radiator fan today and then my next two options are having the Jeep flashed and then replacing the water pump. Any suggestions? Why would it be acting so weird and making my horn and blinkers stop working?

 

Nothing you've done should "help" the ac. Your odd blinker issues are usually more related to a dying battery. If you insist on replacing the fan then you can PM me. I bought one from a wrecked jeep for cheaper than anywhere else and it's just the fan.

But what do you mean exactly by "acting up"? That may help someone else put you on the right track.

 

so when I stop at a stop sign etc the A/C will stop blowing cold. And the jeep will start to overheat. I've also sprayed off the radiator and A/C condenser from all dirt and debris. The fan spins freely when I rotate it manually as well. And how much for the fan? O'reilleys just quoted me $115 for an OEM. And I also just replaced the battery 3 months ago. I still have yet to check the fuses and relays

 

Based on what you're saying there, the water pump sounds more likely. I'd be at half of O'Reilly's but it'd be another week and half before I could ship so that's probably not helpful to you.

If you run the jeep in the driveway can you feel coolant flow through the hose and does your fan come in at all when you've got it running with the ac set to max?

 

oh ok, thanks for the offer anyway brother. And I haven't checked. Will that tell me if the water pump is done for?

 

Ok update. Every time I spray the engine bay down the jeep works fine. The blinkers and horn and ac all come back and the radiator fan works like normal. What gives?.. Spraying water on it all makes it work? Wth...