I noticed today on my classic, that when you put the heater fan on full (after the engine is warm) and set to hot it only blows hot for a little while and then gets progersivley colder like it cant provide enough hot water.
Does anyone know what this is and how to fix it?![]()
Ere Truckie, I needed to ask you summit,
Can't remember for the life of me what it was though
Oooops my bad![]()
Really how come?, stuck open so engine doesnt get hot enough? it seems to warm up nicley on the guage
If you did coolant change in summer did you remember to leave the heater fully hot during drain down and refill? Airlock in itself won't cook motor, but if coolant flow is severely compromised you could get overheating, but you should have already seen that if it was going to be a problem.I did change the coolant this sumer and have only used the heater a few times since so I guess it could be an airlock, Could it work its way round and cook the motor?
No leaks on hoses.
If you did coolant change in summer did you remember to leave the heater fully hot during drain down and refill? Airlock in itself won't cook motor, but if coolant flow is severely compromised you could get overheating, but you should have already seen that if it was going to be a problem.