Question about 2000 Ford Econoline

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Blower Fan not working

2000 E-150 4.6 L V-8 Fuse ? Relay ?

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Could be a fuse or a relay, they are usually under the hood in the "Fuse/Relay box". The exact location should be indicated in the box cover and/or the owner's manual of the van. To try the relay, most of the relays in that box are the same, you can try switching it with another one and see if it works. But, i suspect a possible bad blower fan motor, they seem to go quite often on Econoline vans. They are a pretty simple item to replace, located under the hood on the passenger side, on the firewall. To diagnose for a bad motor, unplug the plugin on the motor, and with the key on, heater control to max, use a test light or a multimeter to check for power and ground at the plugin. Another thing, is the fan not working on all speeds, or is it working on max speed, the reason for my question is, if it's only working on max, the resistor (used for lower speeds) is probably bad. It is located close to the motor in the airbox on the passenger side of the firewall.

Posted on Jan 13, 2009

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id bet it is not the fuse. see why? the blower, would be dead.
fuse 45: all is only S/R that is the label too.

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The central element is the auto A/C control module which gets its power through 15A fuse 7 and 7.5A fuse 31 in the fuse and relay box (F/B). The F/B also contains 15A fuse 22 which supplies power to the A/C control panel and the auto A/C control module. The main fuse box (M/B) supplies power to the 30A SBF HOLDER fuse and through it to the blower fan relay. The auto A/C control module Input from the A/C control panel is processed to produce output that closes the blower fan relay and turns on the blower fan motor at a speed determined by the blower fan controller. There you have it - not a transistor in the bunch!

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My fan blower works only on high


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Heater fan don't work,don't know which fuse operates heater fan


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Look in engine compartment close to battery for fuse box, remove cover and inside cover there is a diagram of fuse/relay locations.
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Fan only works on 4 and 5 settings? Is this a


Hi,

Most of the time the blower motor resistor will fail, but the fan would still work on high if this was the case.

Double check the HI BLO fuse in the underhood fuse block, and the HVAC BLOWER fuse in the ip fuse panel. If this fuse is ok, then the issue lies with either the relay or the fan.

You can swap the Blower Motor relay with another one of the same type and see if the fan comes on. If so, then the relays is the failed part.

Also, place the fan speed on high, unplug the blower motor and connect a test lamp between both terminals on the blower motor connector. If it lights, then the issue is the motor.

It's easy. A generic procedure to replace is :-

  1. Step 1 Locate the blower motor and look around the outside and close to the motor for a 2 by 3 inch plate held in by two or four small screws. There will be an electrical connector plugged into it with five or six wires, depending on the vehicle type and heating and air conditioning type of control panel.
  2. Step 2 Test the resistor before replacing it. It is always recommended to test any electronic unit before replacing because there are a multitude of things that could cause the same symptoms. It only takes a few minutes and can qualify the assumption that a part is bad. It will save money and face to replace or repair the right part the first time.
  3. Step 3 Check the speeds by turning the fan conrol to all positions and taking note of speeds work and what speeds do not work. If the fan works only on one speed the blower motor resistor is very likely bad.
  4. Step 4 Check the fuses if the fan speeds do not work. The fuses for the interior heating and air conditioning fan are usually under the hood in the fuse and relay center. If the fuse looks good, then take it out and turn the ignition key on and use the volt meter set at 20 volts DC. Check to make sure that there is voltage to the fuse. If not, check for an open circuit to the fuse.
  5. Step 5 Check the relay to determine if there is power at the fuse. The relay should have two of the four terminals showing power. With the key on and the fan turned on, remove the relay and put it back in, listening for it to click. If it does not click, then replace the relay.
  6. Step 6 Check the voltage at the electrical connector on the blower motor resistor to see if the fuse and relay are good. Make sure that power is present at the connector with the key on and the fan switch on. There should be power at two terminals of the blower motor resistor. If only one terminal has power, replace the resistor. If two terminals have power, replace the blower motor itself. Remove the screws and unplug the connector to remove the blower motor resistor. Put the new one in its place by screwing it back in and plugging in the wiring connector.

Thanks.

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Blowere fan does not work all the time.


It wouldn't be a fuse that would cause this. If the fuse was blown it would never work. It could be a relay that is bad and warming up or it could be a loose wire.

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2004 Silverdo heat fan on with engine off and works with fuse out


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