OEM Chevrolet Monte Carlo Heater Core

Chevrolet Monte Carlo Heater Core Parts and Q&A

• Heater Core
  89018289
  Q: How to replace the Heater Core on Chevrolet Monte Carlo?

  A:

  Before replacing the heater core users must drain the cooling system and eliminate the fuel injector sight shield. Position aside the heater hose inlet and outlet clamps at the heater core using Hose Clamp Pliers (J 38185) before disconnecting the inlet and outlet heater hoses. Start by removing the RH and LH Instrument Panel Closeout/Insulator panels as well as the floor carpet from their holes in the floor reinforcement while disconnecting the heater air outlet cover and rear floor air outlet duct. Begin by removing screws and heating up the stakes on the heater air outlet cover before taking off the cover from the HVAC module assembly. Remove heater core cover screws along with heater core cover heat stakes, then remove the heater core and heater core foam seal. Begin heater core installation with the positioning of new heater core foam seal onto the HVAC module assembly followed by heater core assembly. Use a 5.5 mm (7/32 in) drill bit to perform dimple drilling next to the heat stakes of the heater core cover. Secure the cover to the HVAC module assembly by using screws which should be tightened to 1.5 N.m (13 lb in). Rehash the heater air outlet cover installation procedure by setting the screws to 1.5 N.m (13 lb in) torque. The rear floor air outlet duct receives the heater air outlet cover before installing it through floor reinforcement holes. The last step includes reinstallation of the floor carpet as well as the RH and LH Instrument Panel Closeout/Insulator panels while using Hose Clamp Pliers (J 38185) to reposition the clamps and connecting the inlet and outlet heater hoses to the heater core. After which you will finish installing the fuel injector sight shield before filling the cooling system.
• Heater Core
  88956887
  Q: How to service and repair the heater core on Chevrolet Monte Carlo?

  A:

  Service and repairs on the Heater Core require you to take off the air cleaner assembly together with the fuel injector sight shield for vehicles with 3.8l. Position aside the heater hose inlet and outlet clamp at the Heater Core with (J 38185). The service process starts by disconnecting Heater Core heater hoses at their inlet and outlet and then removing instrument panel insulators from right and left sides and the lower floor console. Start by removing the bolts which allows placement of the hvac wiring harness bracket to the side. The heater outlet cover must be placed downward and rearward to disconnect from the rear area floor duct assembly. This enables removal of the cover screws and subsequent heater outlet cover extraction. You should remove all the Heater Core cover screws before moving on to eliminate the cover itself but throwing away the seal (1,2) attached to the Heater Core cover. Disassemble the Heater Core outlet cover by removing its caulk thus discarding the outer seal and operating on the pipe retainer clamp screw and Heater Core line clamp screw. Start by removing the retaining clamp together with the Heater Core from the hvac tower case followed by taking off the tube support bracket and dismissing the hvac lower case's Heater Core lower seal and center seal and upper seal and side seals. Begin the installation process by inserting new Heater Core side seals into the hvac lower case before adding a combination of a new upper seal, center seal and lower seal. The Heater Core requires installation into the hvac lower case after clamping the Heater Core tube support bracket. Fasten a screw to the Heater Core line clamp and apply torque to 1.5 n.m (13 lb in). After that, install the Heater Core mounting clip using a screw and achieve the same tightening specification. After affixing the Heater Core outer seal to its position, install (1,2) new seals on the Heater Core cover while applying caulk to the Heater Core outlet cover. Reinstall the Heater Core cover with its screws using a torque of 1.5 n.m (13 lb in). Next attach the Heater Core outlet cover by screwing it in while using 1.5 n.m (13 lb in) torque. After installing both bolts of the hvac wiring harness bracket to 10 n.m torque (89 lb in) the installer should secure the lower floor console and right and left instrument panel insulators. Follow this procedure to install the Heater Core inlet and outlet hoses while positioning the Heater Core clamp according to specifications and use tool (J 38185) forhorizontalalignment when repositioning the heater hose clamps on the Heater Core. The coolant needs to be filled while the fuel injector sight shield should be installed on all vehicles with 3.8l engines and the air cleaner assembly must be reattached.