OEM 2004 GMC Sierra 1500 Evaporator

2004 GMC Sierra 1500 Evaporator Parts and Q&A

• Q: How to replace the evaporator core (Visteon) on 2004 GMC Sierra 1500?

  A: The replacement of the Evaporator core (Visteon) requires detachment of the hvac module and removal of the electrical connector from the recirculation actuator. The following procedure requires the Evaporator cover screws to be unscrewed before the cover can be detached from the hvac module assembly. The Evaporator cowl gasket needs to be detached from the Evaporator before you pull out the Evaporator core from the hvac module assembly . It is mandatory to inject refrigerant oil during new Evaporator core replacement when you substitute the condenser overcompanies. Fit the Evaporator core into the hvac module assembly while placing the Evaporator cowl gasket onto the Evaporator until positioning the Evaporator cover on the hvac module assembly . The proper usage of fasteners must occur at their intended positions while maintaining match-up of all components to their corresponding part numbers. Fasteners along with their joint surfaces should never have paints or lubricants or corrosion inhibitors applied because these substances impact torque and clamping force. The correct fastener sequence and values should be used to stop equipment damage from occurring. The procedure ends by installing Evaporator cover screws with a torque of 2 nm(18 lb in) before reattaching the electrical connector to the recirculation actuator and returning the hvac module assembly into place.