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Chevy Malibu
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Buick LeSabre

How do you change a block heater in a 1976 Buick LeSabre?


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2008-02-25 20:46:35
2008-02-25 20:46:35

Unplug the power cable by pulling it straight out. Drain the coolant. There is a screw in the block heater. Loosen this screw, probably a Phillips. Put a drain pan under the heater and pull the heater out by hand. If the heater is stubborn. grasp it with pliers and pull hard. If there is collant in the block, it will probably shoot out, so wear glasses and watch out for coolant! Clean the hole with a rag or paper. Press the new heater into the hole by hand making sure the rubber gasket is seated. Tighten the screw in the heater and it will suck the heater into place. Plug in the new power chord that comes with the heater. Refill the radiator with coolant. Test the heater by plugging it into 110 ac. Reach behind the power cable and touch the block heater. It might make a humming sound and should be starting to get warm in a minute or so. Now you are ready for -40 degree temperatures. It takes the heater 3 hours to properly heat the engine block on a very cold day. Unplug the power cable by pulling it straight out. Drain the coolant. There is a screw in the block heater. Loosen this screw, probably a Phillips. Put a drain pan under the heater and pull the heater out by hand. If the heater is stubborn. grasp it with pliers and pull hard. If there is collant in the block, it will probably shoot out, so wear glasses and watch out for coolant! Clean the hole with a rag or paper. Press the new heater into the hole by hand making sure the rubber gasket is seated. Tighten the screw in the heater and it will suck the heater into place. Plug in the new power chord that comes with the heater. Refill the radiator with coolant. Test the heater by plugging it into 110 ac. Reach behind the power cable and touch the block heater. It might make a humming sound and should be starting to get warm in a minute or so. Now you are ready for -40 degree temperatures. It takes the heater 3 hours to properly heat the engine block on a very cold day.

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Some do. To check you will need to look at the side of the motor to see the power cord or the element in the block. Next time your car goes in for a oil change, have them look for the cord for you. It is easy when it is on a hoist. Mark

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In the sides and rear of the block.

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Your thermostat needs to be changed. It's about $10.00 for the part and simple to change. It's probably where the top radiator hose meets the enging block. Don't forget to boy Permatex gasket sealer and use it when you change the thermostat.


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