Questions & Answers for: heat pump blows cold sometimes Cars & Trucks

heat. It would blow warm only when running down the road. At idle it blew cold. I started with replacing thermostat, and water pump because they are the easier fix. Still did not help. Then I replaced

...heat temp change at all from cold to hot? I had the same problem with my expedition. So I changed the water pump and flushed the heater core. But the problem was the dampner under the glove ...

...heat on then it could be poor circulation through your radiator or a weak water pump. make sure your radiator is clean on the inside, not too corroded or nasty inside. You can buy a radiator flush ...

...get the hot water circulating there should be some heat. I changed the water pump the thermostat heater resitor and coolant and I'm still not getting any heat please help emal ...

...heat. If you replaced the water pump and the radiator for this condition then it was a waste of money. If you had a water pump or radiator problem it would overheat. The fact that your blowing cold ...

...heat. I have replaced water pump, radiator, intake manifold gasket. What could this be. It sounds like your thermostat is sticking. You can tell when it sticks when your temp gauge spikes high and ...

...pump and thermostat and coolent I would change the Thermostat. if that doesn't fix it? I would buy a Radiator flush and follow the directions exactly you will be surprised how much junk comes out. ...

...heat pump. Because Jaguar uses the closed water circulation method. Now the heat pump primary function is to supply or pump coolant to the heater core at low rpms or at idle. Once the heat pump fails ...

...heat sometimes these doors are vacuum actuated and sometimes they are electrically actuated most the time you are able to see the movement of the motor from inside if you don't see any movement but ...

...pump and rad cap and gave it a rad flush Now i have heat sometimes then i don't just blowing cold and there is ice on bottom of rad I also changed upper rad hose because it never gets hot changed and ...