hi, not sure if correct section but here goes anyway.

i have a 1997 impreza wrx import, now up ,to yesterday the heater has worked no problem at all until yesterday. I had driven the car for approx 20-30 mins with the heater on hottest and was working fine then i suddenly noticed that cold air was coming out of the vents.
Now today its doing the same only now if i stop the car and then come back to it say 10 mins later it will come out hot for a while then cold again.

anyone know what the problem is please?



john

 

Check you coolant level, possibly low or an air lock.

 

checked that its fine.




john

 

anyone on this? Having the same problem.