No heat in 2002 Suzuki XL7

Asked by Cdrushing83 Jan 25, 2019 at 01:07 PM about the 2002 Suzuki XL-7 STD 2WD

Question type: Maintenance & Repair

I have replaced the radiator, heater core, and
blower motor. Has all the fluids to the correct
levels but I still have no heat coming out the vents.
Why do I still have no heat?

4 Answers

100,925

1. If the blower isn't working, could be motor itself, or a blown fuse/relay, dead resistor, faulty switch..... 2. If the blower works and you have no heat, check radiator coolant level. Really low coolant can prevent it from heating the core properly; a failed thermostat will act similarly. An air bubble in a heater line can block fluid passage..... 3. If these are OK, the ductwork has blend doors that move to get the temperature to the vent where you want it. Could be that the blend door that throttles between hot/cold is sticking because the door actuator is defective. You may have noticed a tapping sound under the dash from a defective actuator. Try a spray lubricant on the actuators, or remove them to see if there's a broken sprocket. Might need replacing. It's not a difficult fix.

How do I get to the blender door actuator?

100,925

Under the dash. And you probably have one behind the glove box.

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