gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Heater Control Valve > < Expansion Valve|Description and Operation
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Expansion Valve: Service and Repair

Remove or Disconnect

1. Negative battery cable. 
2. Recover refrigerant. 
3. Evaporator core. 
4. TXV from evaporator core.

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Remove clip retaining the capillary tube to the suction pipe.

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Remove the TXV from the evaporator inlet pipe.

Install or Connect

1. TXV to the evaporator core.

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Install TXV to the evaporator core inlet pipe.

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Install the capillary tube to the suction line.

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Install the capillary tube retaining clip.

2. Evaporator core. 
3. Charge system. 
4. Negative battery cable.

Heater Control Valve > < Expansion Valve|Description and Operation