How To Fix Vent Only Blowing On Floor

It s diverting to defrost because of no vacuum which is the main problem.

How to fix vent only blowing on floor.

Yes i have a 2003 f 150 supercrew and the a c work and the heater works. Im sure theres a door or damper that controls that but i dont know where it is. Step 1 most air control vents are equipped with a flow control door that is located at the vent outlet. Will not blow on defrost or floor seperately.

On the other hand if you experience weak airflow in multiple vents the problem may be blower issues air duct problems small or blocked return vents a dirty air filter or a frozen evaporator coil. Easy step by step guide one how to troubleshoot and repair vent low air flow this article pertains to most vehicles. 2002 ford f150 supercrew 4x4 a c only blows on vent and floor defrost. Air blows out from the floor vents great.

But air only blows out in the defrost mode and the vent position. Air also only blows on high setting not at all on any other setting that i can tell. This door is controlled by a thumb wheel that when activated will open and close the vent air. The air won t blow out the dash vents.

Any one know what i need to do to fix this problem. Check out the article on our blog for more information. It blows out the floor vent and the defroster vent but it won t change and blow out the dash vent. In case only one vent shows the problem you may be having a problem with a disconnected or leaky duct a crushed duct flex or a closed damper.