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Make sure your heater control knob is not cracked, or it will just be slipping on the shaft. Also inspect the attachment where the control cable attaches to heater control valve (underhood). You can adjust the tension of the cable by pressing on the tin part that holds the cable sleeve in position.
IF you have done the above, there are a couple of other possible faults:
1) Faulty thermostat (stuck open) 2) low coolant levels or other cooling system problem
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What is diagnostic code 41 on a 1991 Honda accord?
Code 41 means: HO2S Heater
What is the weight of a 1991 Honda Accord?
Curb weight 2,822 lb of a 1991 Honda accord
Does the 1991 Honda Accord have an Airbag?
do 1991 honda accords have airbags?
How do you change cabin filter in Honda Accord 1991?
The 1991 Honda Accord did not come equipped with a cabin filter.
Where is the fuel pump relay on a 1991 Honda Accord?
where is the fuel pump relay for a 1991 Honda accord located
Will a 1991 Honda Accord front bumper fit on a 1993 Honda Accord?
yes
What size gas tank on a 1991 Honda Accord?
The fuel tank capacity of a 1991 Honda Accord is approximately 17 gallons.
A engine diagram for a 1991 2.2 Honda Accord for the coolant hoses?
A Ignition coil diagram for 1991 2.2 Honda accord
How do you replace the air conditioner filter of 1991 Honda Accord?
The 1991 Honda Accord is not equipped with an A/C filter or Cabin Filter.
91 Honda Accord ignition module replacement?
how to put in a ignition on a Honda accord 1991
How do you replace the radiator on a 1992 Honda Accord LX?
How do you replace a radiator on a 1991 Honda Accord
1991 Honda Accord overheating?
A 1991 Honda Accord could be overheating if the radiator has a leak. There could also be a problem with the head gasket.
