why wont my fan come on

40

Asked by Jan 03, 2014 at 11:29 PM about the 2000 Mercury Grand Marquis LS

Question type: Maintenance & Repair

i replaced my ac blower resistor and my fan still will not come on so my heat and ac can
work

6 Answers

2,165

Check the fuse. There may also be a relay for the blower.

28,325

Yes on both Tony - If the blower motor was also replaced then it's possible that the speed selector switch is burned (not uncommon). The resistor will only keep the fan from blowing on speeds other than High Speed. Often, the fan gets old, the resistor pack blows it's protective fuse, the driver uses the only speed left - high speed - and the worn out motor draws a lot of amperage through the switch and burns it out.

2 people found this helpful.
2,935

might wanna take jumper wire to test the fan after checking fuses and relays...

3 people found this helpful.
40

what could be the problem if when i straight wired it my fan came on

4 people found this helpful.
2,935

sounds like relay or maybe your heat temp sensor?

20

my fan motor wont come on if i ground it it will dont know weres the relay but all the fuses are good 1991 marquis anyone can help

2 people found this helpful.

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