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How to Replace the Heater Hoses in a Pontiac Grand Am

by Contributor

You should check and service the heater hoses in your Pontiac Grand Am on a regular basis to keep your car running smoothly and to prevent coolant leaks. You can maintain heater hoses easily as long as you know what problems to look for and have a specific replacement routine. Replace them every 15,000 miles or so and more often if you drive in inclement weather or on rough terrain.

Determine the location of the heater hoses on your Grand Am. They attach to the heater core's outtake and intake valves. Shut off the car's engine and check the heater hoses for leaks or wear and tear. If they show signs of leakage or damage, replace them.

Empty the radiator of coolant by opening the petcock. Place a bucket underneath the radiator to catch dripping liquid. Put the used coolant in a sealed container and keep it way from pets. Once you drain the coolant, loosen the old heater hoses by twisting them.

Cut the heater hoses with a knife or razor blade. For easier removal, use a heater hose removal tool for the Gran Am, which you can find at an auto supply store. Loosen the clamps that secure the hoses. Then remove the hoses slowly, making sure you don't pull it too hard and damage the heater core or heater tubes.

Wipe the fittings with a cleaning solution. Then use gasket sealer before putting in the new Grand Am heater hoses. Slide clamps over the new hoses until they fit at the mouth of each hose. Then put new coolant in the radiator.

Start the engine. Wait until it warms sufficiently and then look for dripping coolant. If there isn't any, do one final check of the coolant level before closing the hood. Maintain a level halfway between full and low at all times to ensure that the Grand Am's system has enough coolant to keep it running properly.

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