Question about 1985 Ford F150

1 Answer

No heater or a/c

Heater and a/c arent woking. its not the fuse. i can hear the blower motor but nothings coming out of the vents. so it must be bad wiring. but i dont know how to check for the bad or loose wire.

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  • Connie
    Connie May 11, 2010

    Have you checked the vacuum lines on the gate and made sure it's opening?

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  • Master
  • 3,533 Answers

It is the control unit or a vacuum line off the back of the control unit remove the unit and check for vacuum lines off the back and check the vacuum lines under the hood first

Posted on Feb 06, 2009

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1 Answer

There is no cold air or hot air coming out of vents. just stopped one day


You can hear what ? Blower motor ? Probably the blend door actuator is not working . I 'm questing because I don't know what make vehicle you have .

Nov 08, 2015 | Cars & Trucks

1 Answer

Little heat coming out of vents.


IF YOU CAN'T FEEL THE AIR FLOW OUT BUT YOU HEAR THE BLOWER MOTOR WORKING, BEHIND THE GLOVE BOX IS A CABIN FILTER.REPLACE FILTER
IF YOU HAVE GOOD AIR FLOW BUT NO HEAT:
1;VACUUM LEAKING TO HEATER CONTROL
2;WATER PUMP GOING BAD / NOT CIRCULATING COOLANT,HIGH RPM/MORE COOLANT TO THE HEATER CORE
3;OPEN THERMOSTAT/ENGINE TEMPERATURE TO LOW
1;CHANGE THE DIRECTION FROM VENTS TO FLOUR TO WINDSHIELD. IF NOTHING HAPPEN IS THE VACUUM
2;RUN THE ENGINE INSIDE ON WARM PLACE ON IDLE.NOTE THE GAUGE IF PAS 1/2 TO 3/4. IF PAS 3/4 MARK REPLACE WATER PUMP
3;IF GAUGE STAY BELOW 1/2 REPLACE THERMOSTAT
GOOD LUCK

Mar 27, 2014 | 2005 Dodge Neon

1 Answer

Nothing coming from the vents when you turn on the a/c, heater, or defroster


You can jumper the fan motor to make sure it runs and if it does then look at the switch or resistor. You can also remove the resistor and omh acrossed it to make sure that it hasn't blown the fuse on risistor.

Feb 11, 2014 | 2003 Chevrolet Silverado 2500HD

1 Answer

Heater doesnt blow anything fuse isnt blown


if your heater dosent blow through the vents at all you have a bad blower motor usually located on the fire wall of most vehicles

Dec 23, 2013 | 1984 Ford Ranger

1 Answer

Heat or A/C does not work in my car?


Either you have a blower motor FUSE that has gone bad "typically the problem" or you have a burned out blower motor. Usually the cause of a blown or burnt motor if not a Fuse, Is caused by the vented air from outside letting debris like sticks or leaves,acorns etc. enter the fan box. If ANY of the mentioned items get caught in the "blower box" then it will usually blow the fuse and or burn up the blower motor. Start in your fuse box and look for a burnt fuse and replace with same size fuse. If it blows the new fuse quickly then you have debris in "Blower box" that will have to be removed before adding yet another fuse. I have had the same problem and I found a bunch of leaves in my "Blower Box". I removed the leaves and replaced the burned out fuse. And I have had no more problems with the blower motor blowing air.

Nov 09, 2013 | 2004 Ford Taurus

2 Answers

No air coming out of vents when air is turned on. the fuses are all ok


2 things come to mind: can you hear the fan turning?

if not check for power at fan location. If there is power and the fan isnt spinning replace the fan. If there is no power
there is a problem with the fan circuit which includes wiring fuse (you stated were ok) and Fan speed switch (might be a module)

Or there is a blockage it is possible for your heater core and evaporator to plug up with dust .

Oct 27, 2009 | 2006 Chrysler Town & Country

2 Answers

The front heater blower does not blow but you can feel the heat if you put your hand on the vent. The back vent blows a/c but when you switch it to heat you can't feel heat but you can still hear the...


on the front blower make sure the fuse is ok if it is then check the relay if its good as well then youll ned to replace the blower motor. as far as the rear it sounds as if the air handler is not operating properly you need to locate it and ensure that nothing is blocking it from turning.hopes this helps you.

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the mix doors in the heater assembly arent opening and closing right

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Blower not blowing


can you hear the fan working on all speeds?

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