finch13
Well-Known Member
Have the knob on cold, have a buddy turn the knob all the way hot while you watch the valve. It should move, probably in parallel with the hose.
Your heater core is clogged.
It could be 1 of 3 things
1. Low coolant level causing lack of circulation
2. Bad thermostat stuck open keeps the car running cool and thus hot air takes a while
3. Heater core clogged from caustic coolant
I guess i will have to check my heater core, where is it located?
How are you going to check that? You could try a reverse flush to try and get the **** out of it...
Did you properly bleed the cooling system too?
There should be a bleeding procedure in the manual. Basically, open the 12mm bleeder on the thermostat housing when the engine is cold and pour coolant into the radiator until a steady stream comes out of the bleeder. Close the bleeder and start the car with the radiator cap off. This will circulate the bubbles and bleed them through the radiator fill hole. Let the car completely warm up until the temp gauge reads normal, top off the radiator, top off the reservoir, put the cap on and call it a day.