temp sensor

[Gary-Clio]

my temp sensor just sits at the bottom most of the time, an odd time it goes up and down? any ideas? thanks

 

[MicKPM]

Without seeing, most likely cause... faulty thermostat.

Do you find it goes up when the car isn't moving and then falls when you start driving again?

Mick

 

[Gary-Clio]

thanks for the reply, and no mate it just goes when it pleases really?

 

[MicKPM]

okay then, in that case i'd personally want it on diags to confirm the fault as being a duff CTS or not and then replace if required... but you can make a decision on that yourself.

 

[Gary-Clio]

it was put on the machine not long ago and didnt come up with anything?

 

[MicKPM]

Code reading isn't diagnostics and a faulty CTS will never bring up a code. Tell the idiot driving the machine to look at the live data and that he's specifically looking for a nice progressive increase in the sensors value. Any jumping around or a reading of -2 when the engine has been running for a few minutes indicates a fucked sensor.