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Cadillac Catera Heater Is Not Working

Learn if it's a simple fix or time to seek out a trusted technician.

What are common reasons my Cadillac Catera has heater problems?

While there are a variety of reasons your Cadillac Catera heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.
31%
of the time it's
Heater Blower Motor
24%
of the time it's
Thermostat
18%
of the time it's
Heater Blower Motor Resistor

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Related Cadillac Catera Questions

See what others are asking about their Cadillac Catera. Get answers from RepairPal's community of auto experts and enthusiasts.
My heater works on the passenger side but it just blows cold air out the drivers side..is it in the dash?
The heater on my 98 catera works on passenger side but blows cold air on drivers side.

Related Cadillac Catera Problems

Find the most common driver-reported problems that are to blame when a Cadillac Catera has heater problems.
The hot water control valve may develop a coolant leak resulting in engine overheating. a leaking valve should be rep...
The catera often experiences oil leaks from the oil cooler and/or valve cover gasket. the thermostat seal and/or the ...

Cadillac Catera Heater Is Not Working Repair Symptoms

When the blower motor fails, the air conditioner and heater may still work, and heat or cool may be felt at the vents, but the air pressure will be dramatically decreased. This ...Read More
When the heater control valve fails, adjusting the temperature may not change the air temperature at the vents, whether hot or cold. Also, the valve could leak engine coolant, p...Read More
A failing heater core may cause a vehicle to smell of engine coolant inside the cabin. The majority of the smell will come from the vents while the heater is turned on, and from...Read More
A failing heater hose may cause the vehicle to smell of engine coolant under the hood. If coolant runs onto the heater core inlet or outlet, the cabin could begin to smell of co...Read More
A thermostat that is stuck open can cause the engine to run colder than normal and set the Check Engine Light. It may also cause poor fuel mileage and the heater to blow cool ai...Read More
When the blower motor resistor fails, the air conditioner and heater may still work, but heat or cool may blow from the vents on some of the fan speed settings. In some rare sit...Read More