[12Dvop4I]

I have two electrically run fan radiators which are used to cool the radiator down. But ever since hosing down my engine they have not been working (also had problems with sparkplugs to, they somehow got wet but I took em out to dry and now car runs fine).

Normally they will kick in about a minute after the car has had time to warm up. But I can have the car running as long as I want and they won't kick in anymore. I can see smoke coming from the engine (part that connects the exhaust) and after a while smoke will start coming from the radiator. Even when this occurs the temperature reading in the car reads under half way so it's no-where near the point of overheating.

I checked the fuse, and it was OK, swapped it over just to stay on the safe side, still not working. Disconnected and reconnected the fan plugs just incase they came loose, still not working.

Any ideas? I've done a crap load of work to my car lately and it's had it's share of problems on the way but I fixed practically all of them except this one.

[12Dvop4I]

OK, took it for a test run and they kicked in, both of them. But they didn't kick in until the radiator started smoking. Is the sensor f*cked or something? And my radiator grill seems a little black, like it's burnt, is that normal?

[flopay]

Sounds like a sensor maybe going bad. Also do you mean the catalytic converter when you say middle of the exhaust? What are the temps looking like when the fans comes on. It could just be a faulty temp sensor or thermostat.

Easy way to tell as i'm not sure what car it is, would be to see if it is giving any codes. Some or most parts places will have the tool to do it with and don't charge anything. Some will make up excuses they don't have the right software, blah blah deal.

Hope you get it sorted out heat is a bad thing for aluminum/dual overhead cams these days.