Hey guys I was wondering if someone can help me. I have a 99 Ford Taurus SE. On thursday I went out with my girlfriend and when I went to go pick her up the car was fine, everything seemed normal. It was a hot day so I was running the A/C for a while. We parked at a ice cream shop and I didnt notice any weird sound until we came back out. It almost sounded like if my engine was still running. My engine was off and so was the A/C. I dropped her off and when turning the engine off I was still getting that sound. Water was dripping when I checked under the car but I figured that was normal since I had been running the A/C. I got home late and after like an hour I went outside and the sound was still on. I checked under the hood and I had the two fans behind the radiator running. Everything was off, engine and A/C. Is it like an automatic cooling-of-the-engine type of system? I had to disconnect the battery last nite. This morning the engine is really cool and the fans are still running as soon as I connect the battery again. I have enough coolant on there and water. Is it normal?

 

those fans work by means of a thermostat, and i believe that they are also turned on when the AC comes on. have you tried doing things like making sure that the AC is off, and other items, and see if they go off? they definately should not stay on with the key off/out.

 

Again maybe just bad fan relays, stuck in run pos. check fig. 4 & 9


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