Q: Hello. My heat will not come on. There is no leaks but my hose it hard as a rock. What could be the problem?

asked by on

My heat came on just a little bit but nothing at all now. My hose is hard as a rock now. Can ya please help me

My car has 157000 miles.
My car has an automatic transmission.

You need to feel both heater hoses coming from engine to heater core on firewall to see if they are hot? If not hot then engine thermostat is stuck open. If they are hot then you may have a bad heater blend door actuator. If one hose is hot and the other is cool then the heater core is plugged and needs flushed or replaced.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Hello. My heat will not come on. There is no leaks but my hose it hard as a rock. What could be the problem?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: AWD malfunction message on dashboard 2005 Ford Five Hundred

Hello - there are 2 fairly common causes of the AWD warning light: the temperature/pressure sensor in the rear differential, or the oil pump in the rear differential are malfunctioning. I would recommend an inspection of the rear differential by...

Q: Q: No heat

This may be due to a faulty heater blower motor or potentially a bad heater core. As you may know, the heater core is a small radiator like unit that circulates the hot coolant from the engine through the heater...

Q: Ford Taurus vs. Chevy Impala

The police cars have higher quality of course. But if you are talking about buying a used one, they generally beat the heck out of them and a lot of them are falling apart. That's why they are trying to...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...