Is it the MOTOR for the heater that has stopped, or the engine not getting up to temp ?
If heater fan(which is much more likely), then normally a dodgy speed switch, or more likely a resistor pack buggered, both quick cheap and easy to do, but you can always run a direct feed to the motor live and plug into your ciggy lighter as a temp measure to get some heat, this is what happens on full speed setting, it gets full voltage instead of lowered supply through the resistor.
tabetha
Last edited by tabetha; 10-11-2009 at 04:22 PM.