Temp gauge not moving / cool air through vents

[jpwsmith]

Hi all,

Having some issues with my Focus 1.0 eco Zetec S 2015.

For about 3-4 weeks now its been blowing cool air through the vents and the temp gauge barely moves from "cold". it is even doing this on longer runs on motorways.

Then all of sudden it will appear to "warm up" gauge goes to the middle of the dial and warm/hot air is produced from the vents. It might stay like that for hours or within mintues the gauge returns to the bottom of the dial (as if its a cold engine) and cool air then starts being send through the vents again.

Just been in for its 4th service today and the chaps say there is no coolant leak thermostat appears fine, they have plugged it into the computer and there are no issues/faults.

I haven't got it back yet from them today but intent to take it for a bit of a blast when ive collected it to see if this still happen.

just want to know if anyone else is having / had similar issues.  One point to note - I use the car daily but only for about 1-1.5 miles from home to the train station so barely got warm even when this issue didn't happen. Eco boost says that 90% of journeys are completed on a cold engine (so I suppose that's not an ideal situation).

[dezwez]

Quote

 

I would say I faulty thermostat

[TomsFocus]

58 minutes ago, jpwsmith said:

just want to know if anyone else is having / had similar issues.  One point to note - I use the car daily but only for about 1-1.5 miles from home to the train station so barely got warm even when this issue didn't happen. Eco boost says that 90% of journeys are completed on a cold engine (so I suppose that's not an ideal situation).

Check ETIS to see if your car has a supplemental heater.  There's no way you'll get warm air from a 1.0EB within that short distance in the current temps without one.

Also if you let the engine idle in traffic, or very light load (60mph on a flat motorway for example) they will lose heat as they simply don't produce enough waste heat for the heaters like the older, less efficient engines do.

[jpwsmith]

thanks tomsfocus. this is strange as its only started doing this in the last 3-4 weeks its been "fine" for the last 2.5 years ive owned it. very strange