No heat.....but its not the heatercore

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12-22-2014, 08:03 AM

#16

Unknown XJ

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Year: 1998

Model: Cherokee

Engine: 4.0 I6

Quote:

Originally Posted by betsi1121

I had insulation wrap around my blower motor. It was super easy to get to and replace. I pulled the windshield washer reservoir and 3 bolts later it was out. Might be a time-saver to pull it out and make sure it isn't something obvious.

So I looked at my FSM and it said that I had to evacuate the AC before I pulled the motor....but the only reason I see that you need to evacuate the AC is just so you could get it out of the way....It seems pretty straight forward swapping the motors and all but is it necessary to fool with the AC? Did you yourself have AC?

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12-22-2014, 04:35 PM

#17

Unknown XJ

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Year: 1998

Model: Cherokee

Engine: 4.0 I6

It turns out the blower motor was shot and that was my fix. She's got great heat now! Thank everyone for your replies and have a merry Christmas. And most importantly, thank the forum as a whole for being here and what not.
It is my hope this coming year finds everyone in good spirits and health.

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12-22-2014, 08:35 PM

#18

Turbo X_J

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12-22-2014, 10:07 PM

#19

goatherder

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Year: 1991, 1997 & 2000 (yeah, I got 3)

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If you have voltage on the connector for the blower fan then the relay is OK, and the blower should run if the motor's OK. If you have voltage in steps on all 4 speeds then the resistor is OK too. If the blower is NOT running when you have voltage on it's connector (and you've verified the connection is clean and securely connected) then if sounds as if you're blower motor needs replacing.