How to Clear a Clogged Drain Tube on a Ford Escort

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The drain tube on a Ford Escort is removes the built up condensation produced by the air conditioning evaporator. The evaporator is in a case along with the heater core under the dash. It is a sealed case and the drain tube is the only way the water can escape. The higher the humidity, the faster the water accumulates. A certain amount of small debris passes the exterior vents and infiltrates into the case blocking the hose.

Things You'll Need

  • Floor jack
  • Jack stands
  • Air compressor
  • Air gun
  • Nylon tie strap
  • Raise the front of the vehicle and support it on jack stands for safety.

  • Roll under the car and locate the drain tube, which is low on the passenger side firewall. It is only about 3 inches long.

  • Insert the long nylon tie strap up into the hose as far as it will go. Do not use anything hard like wire or a coat hanger, since this will poke a hole in the soft evaporator. This would be an expensive mistake. Extract the nylon tie strap.

  • Blow the air gun up into the hose and it will now dislodge any material left in the drain hose.

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