# No heat! **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** ford, f150\ **Created:** [February 20, 2010, 11:43pm UTC](https://community.cartalk.com/t/no-heat/44844 "2010-02-20T23:43:51Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![jentrucks](https://avatars.discourse-cdn.com/v4/letter/j/7ba0ec/32.png) [@jentrucks](https://community.cartalk.com/u/jentrucks)\ **Post date:** [February 20, 2010, 11:43pm UTC](https://community.cartalk.com/t/no-heat/44844/1 "2010-02-20T23:43:51Z")
We have a '92 F-150 XLT. We Have Replaced the Thermostat and Water Pump, and still have no heat. We are told that we have to replace the heater control valve, but do not where it is located. ---
**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\ **Post date:** [February 21, 2010, 12:15am UTC](https://community.cartalk.com/t/no-heat/44844/2 "2010-02-21T00:15:44Z")
Get under the hood and trace the 2 heater hoses towards the firewall. One of these hoses will be connected to the heater control valve. I suspect that it’s in the “off” position. To test the system just remove the heater valve and replace it with a bypass tube. You should have heat as soon as the engine warms up. If this works then replace the heater control valve. ---
**Author:** ![castironman](https://avatars.discourse-cdn.com/v4/letter/c/2acd7d/32.png) [@castironman](https://community.cartalk.com/u/castironman)\ **Post date:** [February 21, 2010, 12:30am UTC](https://community.cartalk.com/t/no-heat/44844/3 "2010-02-21T00:30:01Z")
from near the water pump, you should have two hoses (5/8") going to the firewall on the passenger side. Check if with the engine warm both hoses are hot. The heater control valve is located on one of those hoses near the havac box. If you see a small hose attached to it check for vacuum there. ---
**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\ **Post date:** [February 21, 2010, 1:10am UTC](https://community.cartalk.com/t/no-heat/44844/4 "2010-02-21T01:10:04Z")
We are told that we have to replace the heater control valve, but do not where it is located. Who told you that? Why? Did they do the work to make sure that is the problem? It could be just a blend door stuck due to a loose vacuum hose somewhere.