Dash showing engine temp is realy hot! NOW SOLVED!

fan trick is real quick and half a dozen cable tie`s max worked for the last 3 or 4 moter`s mine included same symtom`s as you described

How easy is it to change the thermostat? Any links to how to do it?

Nobby

Just want to ask have you taken the viscous fan out for any reason .
The reason is if you lie a viscous fan flat on the ground it will ruin the viscous set up.
It will have less resistance, I think a new fan can be laid flat but not a second hand one as the seals leak which is not visible. An electirc fan connected to the thermo sensor is a good set up with a manual over ride to keep it cool while doing slow tecknical stuff, plus it wont thrash around in water

Another point is your water pump could be worn out!! If so get it changed and quick..
And always ues one coolant as mixed coolants can turn too acid which eats the metal water way tubes which run from the engine block to the head which causes a premature head gasket failure.

Whilst driving with the engine hot throw on the heaters full and hot, if the airflow remains cold rather than heating up, ya may have a thermostat problem, i would defo check the thermostat !! sounds like it is not opening properly or very delayed, ive experienced "phenomenon" haha in many cars and its always been a faulty thermostat !! Best of luck with the experiments and fixes !

Thanks for the advice guys. Fearghal Murphy, i have done this and they work fine. I think "phenomenon" is a very good word to describe it :laugh:
One thing i can not work out is only my daily commute to work, about a 15 min drive, the engine reaches its normal temp and stays there fine. Its only since going on some recent longer drives that the temp reading has shot up. Also the needle goes up and down as i drive along, it goes right to the top then drops to about two thirds. But as i say this only happens on longer journeys.
Jo king in answer to your question, no i have never taken it out. I didnt even kno what one was until starting this thread :laugh: I always assumed it was just the fan.
Could the viscous fan be sticking? So i works for a while then sticks, the temp goes up, then releases for a bit, the temp goes down.
Any advice most welcome

Thanks again

Nobby

add an additional temp indication....... i got a bad experience with the stock one