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Heater Cores and Blower Fans
Ford Bronco
Grand Am SE

Where is the hose that goes to the heater core of a 93 Pontiac Grand Am?


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Wiki User
2010-12-29 22:05:25
2010-12-29 22:05:25

At the rear of the engine from the intake manifold.

towards driver side,very low.will be 2 hoses.

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there is a hose that goes to the block and one that goes elsewhere, there is a small stem and a larger one that is coming out of the heater core which one goes where

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One goes from the heater core to the water pump, the other goes from the heater core to the intake manifold.

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It goes into the water pump. You remove a plug and screw in the block heater. Between the engine and the firewall. You can get at it from underneath.

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If the heater core in your vehicle goes out, you will not be able to use your heater or defroster. You will also notice the smell of antifreeze throughout the vehicle and possibly a film on the windshield from the antifreeze.

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A malfunctioning thermostat can cause your temperature gauge to go up and then allow the gauge to go all the way down. When the thermostat is stuck closed, your engine will overheat and water will not get to your heater core. When the thermostat opens the engine cools down and water flows to the heater core.


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