How to Troubleshoot the Air Conditioning in a Toyota Tundra

If you reach for the A/C in your Toyota car in the middle of summer and all you receive is a blast of hot air, your A/C system may be experiencing a number of issues. However, you can diagnose many problems on your own, such as insufficient pressure in the A/C system or a refrigerant leak. Before taking your Toyota car to the shop for what could be an expensive visit, you can run through a few troubleshooting steps.

See if the problem is as simple as a blown fuse. If the temperature controls on the dashboard seem to work fine but have no effect on the air temperature, then this is probably the cause. The fuse box in a Tundra is located below and to the left of the steering wheel by the brake.

Listen for the blower motor sound to increase when turned to high and decrease when turned low. Get to the blower motor in your Tundra by unscrewing the glove box and pulling it out. Unplug the electrical connectors and unscrew the motor and fan.

Check the coolant levels. The coolant reservoir is found under the hood at the very front of the vehicle. It is white and plastic. Open the cap and shine a flashlight into the reservoir. Make sure the coolant level is less than the full line but more than the low line.

Adjust the climate controls. If they do not feel right with the correct amount of resistance and pausing in the right locations then the problem is probably the control panel. Getting to the control panel in a Tundra is very difficult, and will probably need to be done by a mechanic.

Items you will need: Flashlight

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