Is the auxiliary water pump connected to the heater?
On the test drive, the system may perform great for you. The issue could be the auxiliary water pump. This pump is not connected to the cooling of the engine. Its primary function is to circulate warm coolant to the heater core.
Where does the small block AC heater hose go?
The hole on the Bigger hose = outlet, smaller hose = inlet. Currently the heater hose goes from the driver side front on the intake. As it is, the hose runs to the small block schematron.org hose routing. Need Some Help w/65 Small Block AC Heater Hose Routing. AddThis Sharing Buttons. Share to Location: Chevy Chase MD.
What to do if your auxiliary water pump is inoperative?
If the auxiliary coolant pump is inoperative, the customer might notice reduced heater performance at low speeds and at idle. Your first instinct might be to replace the thermostat, the water pump or the heater core, but if the vehicle is equipped with an auxiliary coolant pump, you will need to dig a little bit deeper with your diagnostic process.
Which is heater hose sends water toward the heater core?
Posts: 11, Does it make a difference which heater hose (upper or lower) is connected to the the same as a standard system except for the engine’s internal fluid routing. The smaller one (5/8″) is the hot and connects to the manifold. Which hose sends water toward the heater core?
What to do if your heat pump is on auxiliary heat?
If your heat pump seems to be stuck on auxiliary heat mode and the temperatures outside are above 35 degrees, you should call the professionals at Precision Heating & Air. Auxiliary heat is less energy-efficient than your heat pump, and it is meant to only run for short periods of time when temperatures drop.
What does it mean when auxiliary heat keeps coming on?
Auxiliary heat is when the secondary heat source turns on automatically. This means, when the temperatures start to drop and your heat pump cannot produce enough hot air to warm your home the aux heat will turn on.
Why are heat pumps paired with aux heat?
Since heat pumps can only keep up with a relatively small amount of heating in a short amount of time, they are paired with AUX heat to help heat your home in a hurry. When your heat pump needs help heating your home, it is below the heat pump balance point.