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is this the blower motor fan for you heating and A/C or the cooling fan cooling fans have a relay blower fans are fused but controlled from switches inside as well as fuses
Not sure on this vehicle, but you may have a bad resister block on heater housing that control fan speeds. If not, perhaps the fan speed switch went out in dash.
If you are certain there are no blow fuses, that leaves two things I am aware of that could be the culprit.
1. Blower motor resistor. Its a component, located inside the blower motor housing on that vehicle. Though, typically, when this goes bad it usually only takes out one or two fan speeds, like maybe speeds 1 and 2 or it might take out the high fan speed, its not really known for taking out all the fan speeds at once, although it could do so.
2. That leaves the blower motor itself. I dont see many of these go out without giving warning, such as making some kind of noise, but again, its not unheard of for them to just quit.
I would make certain that all the fuses are good, even check fuses under the hood that may provide protection for the HVAC system or even the blower motor itself.
some fan motors have a start capasitor, some have a run capasitor and some have both. if you take out the capasitors (normally in the junction box) take note of which wires go where and head to a refrigeration spare parts wholesalers they should be able to give you the right ones then replace them. this shouldnt cost any more than $20 if that doesnt work you will need to replace the motor.
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