A damaged or failed heater core can consummation in a algid operate in colder climates, as the heater core raises the temperature of incoming air using close engine coolant passing washed-up it. On the contrary, most novice mechanics can exchange the heater core in a 1999 Oldsmobile Alero after having the air conditioning transaction properly evacuated by a utility centre. You can all the procedure in under a interval with commonly owned fist tools.
Instructions
1. Accept the air conditioning transaction properly evacuated at a assistance centre. The transaction, under elevated force, should not be evacuated by loosening any of the lines. Most assistance centres evacuate with the development with a Correct air conditioning vacuum, which prohibits the refrigerant from existence exposed to the air.
2. Remove the cooling action. Position a fluid extract pan under the extract tube on the backside of the radiator. Push a plenty of 3/8-inch rubber hose onto the speck of the withdraw tube and design the boundary of the hose into the extract pan. Turn the withdraw plug, above the bleed tube, with pliers until fluid flows into the extract pan. Tighten the remove plug with pliers when the fluid has finished draining. Pull the rubber hose from the withdraw tube.
3. Detach the heater core hoses at the firewall. The two inklike hoses attach near the firewall on the passenger's side of the engine compartment. Squeeze the hose clamps on the neb of the hoses with pliers and slide the hoses from the heater core tubes.
4. Remove the lower passenger's-side and Chauffeur's-side dashboard panels. The two panels are held in with push-pins. Lift the centre of the push-pins with a petite, guideline screwdriver and pull the pins from the panels. Pull the panels absent from the dashboard to seperate them from the dashboard.
5. Remove the centre console. Seperate the gear capture trim lot from the center console, using a humble sample screwdriver to pry the trim quantity from the centre console. Lift it over the shift knops and rotate it to pleasant the switch. Remove the retaining screws holding the centre console in deposit with a Phillips screwdriver. Lift the console up over the shift Bump and remove it from the interior.
6. Remove the glove box. Cleared the door to the glove box. Squeeze the two retaining tabs on the ends of the glove box and pull the glove box out from the dashboard. Remove it from the interior.
7. Detach the empty tube from the heater core encompass, which is located endure the glove box. The tube can be pulled from the heater core cover by participation. Detach the air intake duct from the backside of the heater core include. The air intake duct runs from the backside of the embrace to the center of the dashboard. Remove the duct by hand.
8. Remove the retaining screws on the black heater core cover with a Phillips screwdriver. Pull the cover from the heater core and remove it from the interior. Remove the heater core clamp screw with a Phillips screwdriver, pull the clamp away from the heater core, then pull the heater core from the housing.
Place the lower passenger's-side and driver's-side dashboard panel in position. Install the push-pins into the retaining holes, pushing the in center of the pin to engage the pins.14. Fill the radiator with coolant. Position the heater core cover over the heater core and install the retaining screws with a Phillips screwdriver.
10. Attach the drain tube and the air intake duct to the heater core cover.
11. Install the glove box. Squeeze the retaining tabs on the sides of the glove box and push it into position against the dashboard. Release the tabs when the glove box is in position.
12. Install the center console. Guide the console over the shift knob and install the retaining screws with a Phillips screwdriver. Slip the shift selector trim piece over the shift knob and push it into the center console.
13.9. Place the replacement heater core against the housing. Place the clamp over the heater core and install the clamp retaining screw with a Phillips screwdriver.
Most climates require a 50/50 mix of DEXCOOL coolant and water. 2.2L engines require 8.6 qts., 2.4L engines require 11.3 qts. and 3.1L and 3.5L engines require 13.6 qts.
