Temp guage all over the place and heaters blowing cold

[ChristianZS]

On the way back from work the heaterguage flew up to the max so i put the heaters on to hot only to find the air was absolutely freezing.

Ive checked the coolant and its not boiled any coolant so i think i can rule out the HG giving up.

Oh its a 2001 Ford fiesta zetec-s. 1.6 phase one . sigma engine i think

Thanks!

C.

[Mikey G]

Sounds like water pump has gone. It is still full of water yes?

[ChristianZS]

Yea its still full of water.. Could it be the thermostat or the heater control valve?

C.

[Mikey G]

I'm sure water flows through the heater matrix all the time, if your temp gauge has gone up get it tested, if the thermostat sticks it will over heat but the heaters should still be hot.

[GavinPearson]

Water pump.

[striker 20v]

waterpump or airlock in the system.

grtz Thomas