Jump to content
Do Not Sell My Personal Information

Temp Guage Oddness


Recommended Posts

Hey all :)

Seeing as we have been blessed with such lovely weather I have been using my car heater a bit in the mornings and on the way home, whenever I used the heating the temp needle starts droping aprrox to 75 oc, 80, 85 sometimes roughly.

This seems odd and has never happened on any other car car.

It doesnt always do it but I was wondering what I should do or likely causes ?

Is there some kind of coolant temp sensor that could be knackering or the thermostat or something else on this engine ?

1.8 ghia petrol 2004

No issues with the temp needle when the heating is not touched. If I stop using the temp needle it sorts itself out and sits bang in the middle.


Link to comment
Share on other sites

the heater is drawing heat away from the engine add that to the cool air running through the rad the temp drops and the thermostat closes


this happens with my focus all of the time and ever since i bought it.

the temp gauge drops when i put the heater on full heat with the A/C off

i sometimes use it to cool the engine after a long journey.

10 minutes before i reach my destination i drop the front windows and stick the heater on full heat at level 4

and the blower set to face&feet to help cool the engine before i stop it and park.

its the next best thing to having a turbo timer fitted to the car IMO lol

Link to comment
Share on other sites

the temp gauge is just a guide when a lot of cars hit 80degrees the gauge shows 90 my ti vct never sits in the middle ever its just a trait of that engine

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...