blower motor does not work

Power to the motor is from the resister, so either there is a broken or damaged wire or you have no ground to the motor. This guide will help along with instructions on the diagrams below.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Check out the diagrams (Below). Please let us know what happens.

air conditioning and heater works however air only comes out the defrost vent. controls dont do anything when pushed

You have a vacuum leak. Engine vacuum actuates the vent doors. When there is a leak, it will go to defroster and not change. Check under the dash for leaks. With the engine running, you may hear a hissing sound.

Ac blower motor only works on high. Replaced resistor did not fix the issue. What else could be the issue?

Thats interesting as that usually the resistor would correct that issue. I would take the part back and swap it for another to be sure you didnt get a bad resistor.

Already tried that

Any more ideas for this issue?

look at the connectors ( the one for the car)

is it melted/ distorted/ the "males" or "females" (at least some of them) pushed back in the connector and kinda never make contact when the two parts are pushed together?

i'll give you an example with the floor dimmer switch for my '77 jeep cj-5

when it gets wet/ dirty/ corroded/ hot (over a long time) my lights flash on and off....then off forever!, 'till i get a new pigtail and switch)

see my pics at the bottom (i thought i had a pic of it actually melted and pushed back...cannot locate it)

keep us posted

the medic

All wires and connections look new Also checked all fuses don't know what else to check

The only thing else I could think of is the switch itself.

I was wondering where the blower motor is located and how to replace with a new one?

behind dash you have to remove scuff plate and side pane. lift up carpet on pass side you'll see it. Here is a guide to help walk you through the steps with diagrams below to show you on your car

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

The blower in my 2003 Expedition does not operate when it is set to the lowest fan speed (#1) position...All is well when i use any of the other three fan speeds...Any suggestions on where to begin troubleshooting this problem??

Replace the blower motor resistor

I will try that this weekend...Thanks for your quick reply

This problem is slowing getting worse over the last few years. When using climate control (AC/Heater/Vent) the blower sounds like gears are stripped on level 4 (less efficient airflow and making a clicking clunking noise). More recently it began doing it on the level 3 setting. clicking sound correlates with fan speed setting.

The rear unit also clunks but in a slow ~1hz pulsing sort of way where the air surges after each clunk. Any air flow setting = same clicking rate.

Is there a way to fix this without having to buy an entire blower?

Thank you!

Remove the blower motor and see if something is in the wheel. Very often mice and. Rats get in there and make a nest

It wouldn't work on 1 and 2 speed if there were a rats nest in there. I need to know if the there are gears that can get stripped and if they are repairable rather than purchase a new blower unit.

sounds like the cage is bad.it came apart

Verey offten somthing will get in the blower wheel assy and the first 3 speeds work fine bet hi makes noise . Don't replace the blower just remove it to inspect it. And there are no gears in there

2001 Ford Expedition V8 Automatic

I have read up on this and cant find any specifics close enough to be sure. My blower does not work in the front of the truck on any speed but the back does only when the dial in the front (which is normal) is in the on position.

Could it still be the resistor? or just the motor, or both?

Hi:
It could be either or both. You need to check to see if there is power to the motor itself. If there is and it doesn't work, then it's the motor. If there is no power, then work your way back to the resister. I will tell you that when the resister goes bad, you sometimes have high speed only.

Let me know if you have other questions.

Joe

I HAVE A PROBLEM IN MY A/C FRONT FAN WHEN I INCREASE THE SPEED BY PUSHING THE PETROL PEDAL THE FRONT FAN STOPPED AND THE A/C AND REAR FAN ARE WORKING PROPERLY THIS PROBLEM HAPPENED SPECIALLY WHEN MY SPEED 100 KILOMETER AND ABOVE
NOTE: WHEN I REMOVE MY LEG FROM THE PEDAL THE FRONT FAN WORKS AGAIN

Is it the fan stops or does the air flow changed from vents to another selection?

No the fan flow start decreasing then stops and when i remove my leg from the pedal (petrol pedal) it starts working again
note: the ac compressor is working properly and the rear fan also working properly

I think the fan keeps working, but the air flow changes directions. This would be the result of a vacuum leak in the system. The system is actuated by engine vacuum. When you press on the gas, vacuum pressure drops. That could cause the air flow direction to change.

so how can i solve this problem?

The leak needs to be located and then repaired. If you are lucky, you may actually hear a hissing noise under the dash while the engine is on. Also, check around the engine intake for damaged or broken hoses.

Heater problem
2001 Ford Expedition V8 Four Wheel Drive Automatic

After replacing fan switch, resistor and blower motor, I still don't have any air blowing up to the defroster, panel or floor vents. Blower motor is working, (i can hear it), but no air flow. Is there something that controls the opening and closing the vent doors that I have missed?

AIR MANAGEMENT DOORS
Air management doors are controlled by vacuum control motors and an electronic door actuator motor. Air inlet and distribution doors are controlled by a vacuum control motor. Temperature blend door is controlled by electronic door actuator motor.
The electronic door actuator provides a variable number of temperature blend door positions. Temperature control position energizes the electronic door actuator motor moving temperature blend door.
Vacuum control motors are used on both air distribution and air inlet doors. Air inlet and panel/defrost doors use a 2-position vacuum control motor. Floor duct/panel door uses a 3-position vacuum control motor. Vacuum control motors are controlled by engine vacuum through A/C-heater control panel.

Dave, is there one central location or feed that controls the vacuum doors for both heater and defrost that is not hard to get to. Or, is it posssible a vacuum line was disconnected while putting the blower motor in position?

How do I check the electronic door actuator motor to see if its getting power? Where is the actuator located?

as you already probably know ... this is not an easy system to work on ? I would be checking the black vacuum pipe/hose from manifold see if it has become disconnected the blend door on this and other models seem's to be a constant problem and may need replacing .. but you should still get cold/cool air blowing if that was the case .. from your description your getting no air at all ? but you can hear the blower, I suspect you have something not connected correctly ..

2002 Ford Expedition V8 Two Wheel Drive Automatic

how to change the blower motor in the 2002 ford expedition

Do you have the 4.6L or 5.4L engine? It makes a difference.

This is for the 5.4L which is most common. If you have the 4.6L let me know: