How to exhaust the water tank of automobile heater?

The automobile warm air water tank can be exhausted in the following places: 1, one is in front of the throttle valve, and the exhaust can be at the bifurcated water pipe behind the cooling fan;

2. There is a black nut on the pipe of the warm air tank entering and leaving the cockpit, or there is a metal gong wire on the body under the hood;

3. These two vents are little known and very important. If you evacuate from this position, it will be thorough.

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