air won't work on high
#1
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Model: Cherokee (XJ)
air won't work on high
I am getting a 1997 Jeep Grand Cherokee and air won't work on high does anyone know what this could be and would it be something easy to fix? I want to give this auto to my grand-daughter.
thanks for your time
thanks for your time
#2
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Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
I have a different generation of GC but I had a similar issue and had to replace the control module on the dash. I got a used one off of ebay for $50. The contacts can get gummed up and only work on selective settings.
#3
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Thanks I will have to give that a try maybe contacts just need to be cleaned.
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Year: 2004 WJ, 1998 XJ
Model: Grand Cherokee(WJ)
Engine: 4.7 HO
Not sure if yours is the same as mine, but be careful opening it. There is a little steel ball bearing that is in the switch and bounced away when I opened mine.
#6
Seasoned Member
Yeah, if you open the switch, do everything over a bin/box, so if anything drops, it doesnt go far.
Now i have the same issues, and have resoldered the connections, and swapped the switch with no changes. I dont believe it would be the motor, because its dumb. Send the necessary voltage, and thats the speed at which the fan spins. I believe its in the relay, but my AC/heat work fine on MedHI, so im not worried about making the HI range work. I have tried all the easy resolutions. Good luck.
Now i have the same issues, and have resoldered the connections, and swapped the switch with no changes. I dont believe it would be the motor, because its dumb. Send the necessary voltage, and thats the speed at which the fan spins. I believe its in the relay, but my AC/heat work fine on MedHI, so im not worried about making the HI range work. I have tried all the easy resolutions. Good luck.
#7
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Model: Cherokee (XJ)
Yeah, if you open the switch, do everything over a bin/box, so if anything drops, it doesnt go far.
Now i have the same issues, and have resoldered the connections, and swapped the switch with no changes. I dont believe it would be the motor, because its dumb. Send the necessary voltage, and thats the speed at which the fan spins. I believe its in the relay, but my AC/heat work fine on MedHI, so im not worried about making the HI range work. I have tried all the easy resolutions. Good luck.
Now i have the same issues, and have resoldered the connections, and swapped the switch with no changes. I dont believe it would be the motor, because its dumb. Send the necessary voltage, and thats the speed at which the fan spins. I believe its in the relay, but my AC/heat work fine on MedHI, so im not worried about making the HI range work. I have tried all the easy resolutions. Good luck.
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#8
Old fart with a wrench
Now that you mention it, I think there IS a relay that switches the load for high. Look for it in the junction box either behind the glove box or in the passenger's kick panel. I think I remember it's behind the kick panel in the 97.
#9
Seasoned Member
Now you start disassembling the HVAC controller, and this is where you want to be careful, and pay attention. Lots of different small parts. Not too difficult, but not fun. Add a little solder to any connections that look poor.
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