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Heater Hose Junction Guides

5 Easy Steps to Replacing your Car's Heater Hose Junction

The heater hose junction is one of those parts in an automobile that you didn't know existed until it was broken. Part of your car's heating system, the heater hose junction connects the heater hose to the various parts of the heater. And when the hose junction is broken due to damage or deterioration, engine coolant may leak out of it and lead to little or no heat inside your car. Luckily, replacing a heater hose junction is not that difficult and only requires a few simple tools to accomplish.

Difficulty level: Easy to Moderate

Tools Needed:

  • A 2-gallon container
  • Pliers
  • Phillips screwdriver

Step 1: With the hood propped up, open the drain on the radiator and unscrew the radiator cap. Drain the engine coolant onto the container and set it aside.

Step 2: Using a pair of pliers, disconnect the heater hoses from the heater core, the heater outlet hoses from the water hose connection and the heater hose from the engine from the engine.

Step 3: Use the pliers to disconnect the hoses from their respective heater hose junction.

Step 4: With the old heater hose junctions taken out, take the replacement junctions and put them onto the heater hoses using the pliers. Next, re-attach the heater hoses to their respective connections with the pliers.

Step 5: Refill the radiator with coolant. Turn on the ignition and make sure to check for leaks.

Warning

Engine coolant is highly poisonous both to humans and animals. Even a small amount can be lethal to both cats and dogs unless an antidote is given as soon as possible. In addition, despite its water content engine coolant is also highly flammable and will catch fire when exposed to high temperatures. So make sure to dispose of the engine coolant properly. Put the antifreeze in a secure container and take it to the nearest landfill. Most major landfills have their own disposal tanks specially made to handle such chemicals.

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