Replaced heater core, now only lukewarm air?
#1
Replaced heater core, now only lukewarm air?
1994 Volvo 940 sedan
Non-Turbo
Automatic
150k miles
So, the heater core had been slowly leaking and it was time to replace it. Bought the heater core, replaced it over the weekend (which was pretty difficult). After replacing it, the system did not take all the coolant back in, after taking off the hose at the highest point all of the fluid finally went back into the system. I'm assuming it was bubbles in the system. Anyway, now that everything is all back together, when I drive the car the air only is lukewarm that comes out. Not cold, not hot, but pretty warm. I felt both hoses going into and out of the heater core at the fire wall and they are both hot. All hoses are hot actually. I cannot find out why it is not hot at this point. Could there still be bubbles in the system causing that? There was stop leak in the system before, but it was strained out prior to the install of the new heater core, so I doubt that is an issue. Either way, any insight and tips would be great!
Thanks all
Non-Turbo
Automatic
150k miles
So, the heater core had been slowly leaking and it was time to replace it. Bought the heater core, replaced it over the weekend (which was pretty difficult). After replacing it, the system did not take all the coolant back in, after taking off the hose at the highest point all of the fluid finally went back into the system. I'm assuming it was bubbles in the system. Anyway, now that everything is all back together, when I drive the car the air only is lukewarm that comes out. Not cold, not hot, but pretty warm. I felt both hoses going into and out of the heater core at the fire wall and they are both hot. All hoses are hot actually. I cannot find out why it is not hot at this point. Could there still be bubbles in the system causing that? There was stop leak in the system before, but it was strained out prior to the install of the new heater core, so I doubt that is an issue. Either way, any insight and tips would be great!
Thanks all
#5
#6
Yeah, right...
You have to check the possible air in the system and the valve function--there is nothing else! The hoses getting hot is a good sign but it all depends on how fast it takes for them to heat and how much flow is passing through. Also, this time of year it may take a while for the heater to get up to operating temp.-- especially with a "hot" thermostat (one that takes longer to open).
You have to check the possible air in the system and the valve function--there is nothing else! The hoses getting hot is a good sign but it all depends on how fast it takes for them to heat and how much flow is passing through. Also, this time of year it may take a while for the heater to get up to operating temp.-- especially with a "hot" thermostat (one that takes longer to open).
#7
Thread
Thread Starter
Forum
Replies
Last Post
ycartf
Volvo 850
39
05-06-2013 11:19 AM
jebb1977@hotmail.com
Volvo 850
1
10-11-2009 05:13 PM