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Note: This is a general guide for all vehicles.

How to Replace a Heater Control Valve

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Parts
  • Heater Valve
Tools
Difficulty

Moderate

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Steps

so my heating core is on bypass. And I see the 2 tubes to hook up . But why is there 3 connections.? What is the middle one for ? Please help

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Guide Contributors

  • ARZ at AutoMD.com
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