Musa Khan

Thanks for the advice. I thought I would report back to the conference and tell you how I got on. You were right all I needed to do was depress a part of the electrical connector which released it and then it came off easily. It may be of interest to anyone doing this job in future that the replacement switch (which is kind of a spark plug in shape and size) required a larger socket than the original (but the same thread-size obviously - or it wouldn't have fitted the hole), so do not make assumptions based on the replacement switch size. Also when I removed the electrical connector I found one of pins from the switch had broken off and was embedded in the electrical connector and the other pin broke away when pull out the electrical connector... I (well actually my kind neighbour) sorted the electrical connector out with some diligent use of a a set of fine pliers. If I didn't have to borrow a set of deep sockets from my neighbour (which, incidentally, I returned promptly) and the pins had not corroded away on the switch, I guess the whole job should not take longer than 15 minutes from start to finish (that's including refilling the radiator with coolant). Much to my relief, doing this job solved my overheating problem as the switch was the faulty item in the system, mainly because the pins had corroded away.

Hi, i have been having problems with my car overheating and have concluded its the radiator fan temp switch. I have located it and tried pulling the connector off the back of it without success. I stopped trying in case i cause some damage. Is there a knack to it? Any advice and experience on changing the radiator fan temp switch would be most welcome.

Just a thought. My car has two radiator fans. Each fan is controlled by a dedicated relay (switch) in the fuse box i.e. there are two relays in the fuse box. Am I correct in thinking, unless BOTH relays are faulty, if neither of the fans operate when they should kick in, the likely culprit is the temperature switch (on which both rely to get the cue to switch on)?

Thanks for the suggestion. In will certainly check all the fuses. I have nothing to lose by doing so.

The location of the 30A radiator fan fuse is clearly shown on the inside of the fuse box lid. Are there related fuses I should check? If so, how are they related to the workings of the radiator fan?

My Lexus IS200 is overheating. I noticed it was only doing this in stationary traffic. After some investigation I discovered the radiator fan is not kicking in when it should. In fact it never kicks in. I checked the fuse. That looks ok. I'm beginning to think its the fan switch. Can anyone tell me where the fan switch is and how to check it? Has anyone had the the same experience?