Squeeky in-car heater fan...

[Neil.]

wen i put it on number 1, 2 or 3 it squeeks like MAD! what can i do to stop it?

[Mark]

Chuck another one in.

[Ste_Nova]

wd40 it

[Philsutton]

Thats happens with mine as well, i just dont use them but then my hands go blue cos its so cold

[Dicko]

mine dont sqeak but if i hiot a bump when its on it make a fckin awful grinding noise sounds like wheels coming off until i turn it off then back on :x

[Stuart]

mine does it too, i just turn them off and back on again to shup it up lol

[pickle]

this happened to my mkI nova too, i think u will need to bleed the radiators cos it may have air bubbles in it, therefore causing the squeek.

[Neil.]

how do i do that then?

[Jules]

Like Ste said - WD40 it.

[pickle]

i didnt bleed mine myself but i think all u need to do is keep the heaters running and pour water into it, and it should fill itself up and stop squeeking. ask someone who knows how to do it for deffinate.

[linzTDI]

mine does it to when you turn it on to number 2 only does it when it feels like it tho

[Ste_Nova]

wd40 will fix it... mine was siezed and smoking when i got the car

[linzTDI]

so i jsut spray it into the heater itself?

[mowgli]

the squeak is because the bushes have worn, and the impellor (fan thingy) is catching on the fan housing. the 'grinding' noise is probably a leaf in the intake. bubbles in the heater sound like 'bubbles' and the most common way to get rid of them is bleading out the cooling system (check haynes) if it is on a carb ohc engine, usually removing the temp sender for a short time whilst pouring extra coolant into the expansion bottle works fine.
remember, these cars have been around for a long time, and some bits just wear out......

[Jules]

so i jsut spray it into the heater itself?

Open bonnet, remove the plastic 'sheet' that covers around the wiper blade area, the thing in the middle is the motor, spray WD40 around the edges and it should cure it (Maybe have it running on 1 whilst spraying it).