OEM Chevrolet Corvette Heater Core

Chevrolet Corvette Heater Core Parts and Q&A

• Heater Core
  89019028
  Q: How to replace the Heater Core on Chevrolet Corvette?

  A:

  The first step to replace the Heater Core involves removing the hvac module followed by discarding its hvac module assembly foam seal. Disconnect the discharge temperature management (DTM) sensors electrical connectors as well as the hvac module wiring harness retainer pin from the hvac module. The Heater Core cover wire harness retainer should be disconnected from the wiring harness next. Place the removed retainers aside for further operation. First remove heater cover screws from hvac module then pull off the attached heater cover before you can access to extract the Heater Core. The start of installation requires users to apply new foam sealings to the Heater Core while always utilizing fresh Heater Core seals. Replace the Heater Core within the hvac module next install the heater cover. Secure the heater cover screws through tightness of 1.6 n.m (14 lb in). The hvac wiring harness needs to be connected to the Heater Core cover wiring harness retainers. Then the hvac module wiring harness retainer pin should connect to the hvac module and the dtm sensor electrical connectors before installing the hvac module.
• Heater Core
  88956888
  Q: How to service and repair the heater core on Chevrolet Corvette?

  A:

  The service and repair process for the Heater Core starts with hvac module disassembly and continues by unscrewing both the Heater Core outlet cover screws and removing the outlet cover. First remove the Heater Core cover screws while discarding seals (1,2,3) from the cover along with the outer seal from the core before removing the cover. The servicing begins with removing the Heater Core retaining clamp screw and its retaining clamp then unfastening the Heater Core pipe retainer clamp screw before removing the Heater Core from the hvac module case - lower. Remove all seals and retainers collectively from the hvac module case - lower so that only the lower and upper assembly parts remain. You can use a flat bladed tool to open the retaining tab before accessing the Heater Core pipe retainer clamp. Install the Heater Core pipe retainer clamp to Heater Core pipelines by aligning the depression in the clamp with the ridge on one of the pipes and then secure the clamp. Fasten the new Heater Core side seals , upper seal , center seal , and lower seal to the hvac module case - lower before adding the Heater Core itself. Fasten the Heater Core pipe retainer clamp screw with 1.6 n.m (14 lb in) torque before attaching the Heater Core retaining clamp by screw. The clamp screw requires a torque setting of 1.6 n.m (14 lb in) as well. The next step involves installing new Heater Core outer seal together with cavity seals (1, 2, 3) onto the Heater Core cover before fastening the cover and its screws to 1.6 n.m (14 lb in). Reinstall the hvac module after installing the Heater Core outlet cover along with its screws while tightening all hardware to 1.6 n.m (14 lb in).