Question about 1998 Chevrolet Blazer

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My heater core is bad how do iget the dashboard off

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B4 assuming the core is bad,gounder the hood,and diconnect the two hoses that connect to te core. use a garden hose and alternately spray into both sides of the core.till you get clear water running out of it. mos times it is jut clogged with sludge. if yo have to remove the dash...then remove every single screw you see that is in the dash and everything that attaches to it. then GENTLY pry along the edges till you pop all the plastic retainers out. it should the come off as 1 piece.

Posted on May 02, 2010

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    Detach the heater core hoses at the firewall. The two black hoses attach near the firewall on the passenger's side of the engine compartment. Squeeze the hose clamps on the end of the hoses with pliers and slide the hoses from the heater core tubes.

    • 4Remove the lower passenger's-side and driver's-side dashboard panels. The two panels are held in with push-pins. Raise the center of the push-pins with a small, standard screwdriver and pull the pins from the panels. Pull the panels away from the dashboard to separate them from the dashboard.
    • 5Remove the center console. Separate the gear select trim piece from the center console, using a small standard screwdriver to pry the trim piece from the center console. Lift it over the shift knob and rotate it to clear the knob. Remove the retaining screws holding the center console in place with a Phillips screwdriver. Lift the console up over the shift knob and remove it from the interior.
    • 6Remove the glove box. Open the door to the glove box. Squeeze the two retaining tabs on the ends of the glove box and pull the glove box away from the dashboard. Remove it from the interior.
    • 7Detach the drain tube from the heater core cover, which is located behind the glove box. The tube can be pulled from the heater core cover by hand. Detach the air intake duct from the bottom of the heater core cover. The air intake duct runs from the bottom of the cover to the center of the dashboard. Remove the duct by hand.
    • 8Remove 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.
    • 9Place the replacement heater core against the housing. Place the clamp over the heater core and install the clamp retaining screw with a Phillips screwdriver. Position the heater core cover over the heater core and install the retaining screws with a Phillips screwdriver.
    • 10Attach the drain tube and the air intake duct to the heater core cover.
    • 11Install 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.
    • 12Install 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.
    • 13Place 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.
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Instructions
    • Drain the cooling system. Draining the cooling system will prevent toxic engine coolant from leaking into the passenger cabin of the vehicle during removal of the heater core. To drain the cooling system, simply disconnect the lower radiator hose from the radiator by loosening the hose clamp and pulling the hose off. Be sure to drain the fluid into a sealable container and dispose of the coolant at an appropriate disposal site.
    • 2Pull the dashboard six inches rearward. In order to do this, you must remove the following parts; the center dash bolt (located under the defroster vent cover), the bolts under the driver and passenger kick boards, the bolt connecting the dashboard to the radio mount, and the the bolt connecting the dashboard to the rear of the glove box. The locations of these bolts are immediately apparent upon looking under the dash. Once you have removed these bolts, you can pull the dashboard rearward and secure it.
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1 Answer

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Coolant leaking somewhere unknown, have to add to reservoir every 3 days or so, strong antifreeze smell with a/c on. water sloshing sound in passenger side dashboard. bad heater core?


sound like a bad heater core! the heater core is like a small radiator that is usually locaded in the dashboard on the passenger side. now if the leaking is really bad you are going to see water dripping by the front passenger tire or if it gets really bad it may leak inside the car. in order to fix this problem the HEATER CORE must be replaced. good luck

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1 Answer

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