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The blower in my ford focus was only working on number 4 since ive had it which is about 4 years. last week while i was warming up my car and cleaning off the snow i had the heater on and while i was brushing off the window i heard what sounded like the heater rev up and then just die. I checked the inside of my car and my heater wasnt working, now NO air blows from the vents.. i checked fuses i dont think i blew a fuse... is it the resistor?... what could it be? HELP!!!
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I got this free Pdf man ual from reliable-store for free and I don't think Ive visited a mechanic or fixya for help for more than 3-4 times out of the 2 0 times I fixed the chipper in these 4 years
this sounds like a bad blower motor resistor that is bad and only working when the switch is put in the 4th position. the resistor has resistors wires in it that respond to the path of power through fan switch on the dash, depending on which fan speed you need.
Not uncommon for Ford focus coil packs to play up I've replaced a few I would recommend, replace coil pack and have leads. If you have car serviced at the regular service interval the plugs should be ok.
sounds like a bad swich. but since it all of a sudden quit on you the blower motor could be bad as well. you can connect power and ground to blower to see if it works. if it turns then the swich is bad.
Make sure you contact a Mercury Dealer or Ford Dealer and run your vehicle ID number to see if it has a recall on the blower switch. I worked for Ford for years and I think I remember that vehicle having a blower switch and or relay recall. Some of these recalls did not expire and if that is the case it would not cost you anything to have this done. Good luck, hope this helped
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