temprature gauge faulty ? who knows.

[plr]

I have a Mark 1 1987 polo and the temprature gauge needle has stopped working but the red light is flashing on and off constantly and the car rumbles and stalls sometimes at the traffic lights. No other sign of over heating though.

I have checked the water level which is fine and cannot see any other problems. Any ideas what this could be ?

Thanks a lot, appreciated the help.

Paul.

[GroovyCarrot]

Your temperature sensor has packed in. You'll need to replace the black one, you can pick one up for a couple of quid at gsf, and it only takes a few minutes to fit. The sensors are on the front of the thermostat housing, just look for two plugs going into the housing.

[mervyncp]

Appologies for re opening an old post, but my son has an '87 1043cc Polo as his first car.
The temperature gauge reads full hot all the time and the red light is flashing, so I suspect the sensor needs changing.
You mention 2 sensors attached to the thermostat housing.
One is the temp gauge sensor...
What is the other one?
Which is which?
Mervyn

[alexperkins]

One is for the gauges, the other is for the ECU

[mervyncp]

One is for the gauges, the other is for the ECU

So are they identical parts then? and which is which?

[alexperkins]

They are different parts. One is blue one is black

Blue is ECU it think black is gauges