Heat... I want some heat!

[firehawk]

-Mister2- Wrote:I have heater issues too. My thermostat is working and the temperature slide slides easily from side to side. Also i cheked that the cables move too.

I have no heat what so ever at the moment. Heater blows only cold air trough.

Did you check that the cable from the heat knob also moves the water tap in the engine bay, behind the engine on the firewall?

If the tap moves OK, try to first bleed the coolant system in case there is air trapped in the heater matrix. Fill the coolant expansion tank to the max level, push the heat knob fully to hot and run the engine until it's warm (thermostat opens, lower radiator hose warms up). Then let it cool down again and see where the water level in the expansion tank settles. If there was air in the system, the level should now be lower.

You could also at first try, after starting a cold engine, running it for a while with the radiator cap off to see if any bubbles come up. Close the cap once the water expands enough that it starts to flow over.

If this doesn't help, the heater matrix may either be so clogged on the inside that the water just doesn't go though it or it's full of dust and leaves on the outside and air doesn't pass through. Either way, you'll need to drain out all the coolant and pull out the whole heater system under the dashboard. Some compressed air through the matrix may help in unclogging it but if it's in a really bad condition, replacing it may be the only choice.