Question about 1991 Honda Civic
1991 Honda Civic Hatchback LXI -
I broke my HOT/COLD knob b/c I turned it too much to the point to where it's stuck and does not work. Just being an idiot.... It's extremely cold and my heat barely works on 1. What can I do? I know in the back I can manually change it from hot to cold, but thats not working. Maybe I'm doing the wrong thing? Something else must have happened or I'm just closing the wrong thing. How can i get heat and be able to turn it up to 2, 3, or 4? THanks so much!!!
The heater control cable may have broke. you'll have to go under the hood and find the heater control valve located on one of the heater hoses. The valve is mounted to the firewall and has the other end of the cable attached to an arm. Manualy open the valve by moving the arm toward the firewall untill it stops. The other issue is the blower motor only operating on low. Normally if the transistor fails the motor only operates on Hi, so lets look at the switch. Unplug the white 6-pin connector from the switch and with a jumper wire jump pins1&3 black wire & blue/black wire. This bypass the switch asuming there is 12volts on the blue/black wire the the fan motor will come on high. If it does the switch is bad. If it doesn't the blower motor is worn out or you have a bad ground. it is common that the brushes wear out in the motors over 150k. try this tap test. with the blower motor turned on try kicking the blower motor.this will cause the brushes in the motor to temporary make better contact untill you can get a new motor. -hope this helps
Posted on Jan 31, 2010
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Posted on Jan 02, 2017
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