Overheating

[smedzz]

got a problem with overheating..

had a water pump fitted 2 month ago as well as an automatic belt tensioner,been to devon for hols temp working perfect,come back of hols starts overheating,me thinking it thermostat just kept topping up until temp started going into red then rad bust so i brought new rad had it fitted still overheating brouht thermostat to change but mate couldnt find it so didnt change it..

still overheating but not as much if i put hot air on in car it keeps temp down but rad fans dont kick in until temp is nearly in red :D

[galaxy20]

have you checked the oil cap for any signs of head gasket?

[seatkid]

still overheating but not as much if i put hot air on in car it keeps temp down but rad fans dont kick in until temp is nearly in red :wacko:

Likely to be faulty (or badly fitted) thermoswitch for fans.

[Beyond Help?]

have you checked the oil cap for any signs of head gasket?

 

That is a common misconception. You can have combustion gasses pressurising the cooing system without oil getting into the water, or water into the oil. The ony sure-fire way to check is a sniff test.

Edited September 5, 2008 by Beyond Help?

[Beyond Help?]

Back to the OP's question. It does sound like the thermostat. The thermostat is located in a plastic housing on the end of the cylender head if I recall correctly. But I only work on diesels so could be wrong. I do know that on a V6 it is a pig to get to and you would do well to buy a new housing too, as they are prone to cracking and replacing it when it is off is a good idea.

[Scorpiorefugee]

Just a quick thought.

 

There was a longish topic on this a while ago and it was resolved only when the owner had his rechipping reversed.

You say nothing about having the performance boosted at all but just in case.....

 

If not relevant, just ignore me.

[fedupwithjunk]

There has been a lot of similar posts if you search the forum. The most common conclusion was head gasket which seemed to cure it for some people. I have had 3 thermostats changed to no avail. Eventually a second gas test revealed exhaust gas in the header tank. (search my previous posts and you'll see the multitude of tests and work I have had done) But after a dose of K-seal it has been driving fine for a year like this except I have to keep an eye on the coolant level and my heater blows cold half the time. My garage are pretty sure its not the head gasket and in consulation with Ford uk they think that it is actually a cracked turbo. The car is now 8 years old and is not worth the investigation any longer and I am going to chop it in for a new one. Maybe and S-max?