2002 mecury villager heater blower speed contol resistor

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stevek53 - 30 Dec 2006 19:25 GMT

My 2002 mecury villager (same as nissan quest) from the time it was
new would blow out the heater blower speed control resistor approx.
every six months. Now they are only lasting a couple of weeks untill
they fail. My friend has the same van purchased at the same time and
he has the same problem. Is anyone aware of this problem and the
solution? Thanks>

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Michael Pardee - 30 Dec 2006 21:52 GMT

> My 2002 mecury villager (same as nissan quest) from the time it was
> new would blow out the heater blower speed control resistor approx.
> every six months. Now they are only lasting a couple of weeks untill
> they fail. My friend has the same van purchased at the same time and
> he has the same problem. Is anyone aware of this problem and the
> solution? Thanks>

Not sure about the Villager, but many Ford resistor packs are mounted in the
ventilation air flow and have a thermal fuse integral with the resistor
pack. If the thermal fuse gets too hot (from inadequate air flow) the
thermal fuse opens and the fan won't work in any position. The main
suspicion falls on the blower motor, particularly the bearings, but anything
that prevents the air from circulating will do it.

Mike

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Bruce L. Bergman - 31 Dec 2006 04:12 GMT

>> My 2002 mecury villager (same as nissan quest) from the time it was
>> new would blow out the heater blower speed control resistor approx.
[quoted text clipped - 9 lines]
>suspicion falls on the blower motor, particularly the bearings, but anything
>that prevents the air from circulating will do it.

Heater fan motors don't "just quit", the bearings slowly dry out and
get bad, and the amp draw goes up as the fan slows down... Check the
motor bearings, and that the fan wheel isn't rubbing on the housing.

Some full-service Auto Electric shops (alternator and starter
rebuilders) can also repair those small motors for less than new, call
around.

It's all a matter of whether the motor is designed to be
disassembled without destroying it (IE the case halves are welded
together at the factory) and whether they can get the parts.

--<< Bruce >>--

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