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Answered 2007-02-01 19:33:42

Your heater core is plugged and you need a thermostat.

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Where would a major leak near the area of the radiator be coming from if it does not seem to be coming from the radiator itself?

Check your heater hoses, that's where the water ciruclates into the heater from the water pump.

What is the layout for radiator hoses on a 1990 Chevy Astro van?

one large hose from bottom of radiator to side of water pump. other large hose from thermostat housing to top of radiator. one heater hose from water pump to heater core, I think this one has a Y in it if there is a rear heater other heater hose from heater core to somewhere on top the engine. If there is a rear heater, its return hose goes to a fitting on the radiator.

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Upper and lower radiator, inlet and outlet heater core, bypass,Upper and lower radiator, inlet and outlet heater core, bypass,

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the heater core has got a hole in it or your top has a hole init. If the water is green it is your heater core. if not it is your top.

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With no water no heat can be transferred through the heater coils.

If radiator sealer blocked the heater core can it be unclogged?

The heater core can be flushed out and hopefully be unclogged. A water hose can be hooked to the heater core hoses, and water flushed through to clean the core out.

Pontiac grand am no heat?

Low water in the radiator will result in no heat. The water level is not sufficient to reach the heater core. The heater core will become cold.

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Is a gas water heater supposed to stay on?

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What is the correct Heater hose routing diagram for a 1990 Chevy truck?

The port on top of the water pump (or on the side in some applications) is the coolant intake for the pump which coincides with the lower radiator hose. some people hook a heater hose to the intake and to the pump but doing this you are recirculating hot water from the heater core back into the engine as the water pump pushes water from front to back coming through the intake and out the upper radiator hose. so in this instance already hot water is going to the heater core and straight back to the engine without being circulated through the radiator also your water pump is essentially getting water from two sources. i normally plug the water pump and run a hose to the radiator and to the intake. there isn't anything wrong either way. one hose from intake to heater core and the second hose from the heater core to either water pump or radiator. one will take longer for the heater core to heat up but will ensure on a hot summer day all the coolant in the system is being cooled. with pump to intake setup the heater will work faster on a cold day but you may have cooling or overheating issues on a hot summer day.

Why isn't the water in the water heater getting hot?

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Why does radiator fluid get into heater vents?

You heater works from water flowing from your radiator to the heater core, you may have a leak in your heater core. You most likely also smell antifreeze inside the vehicle. It is most likely casued by a leaky heater core. Unfortunatly depending upon the make/model/year of your vehicle a heater core can be difficult and/or expensive to replace.

Is antifreeze the same thing as radiator fluid?

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When the car stops what causes the heater to go cold?

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If you have replaced the water pump thermostat and heater core and ran water through the radiator but it is still overheating Should you have the radiator pressure tested?

If you have replaced the water pump then flush the radiator with CLR also check to see if the fan is working properly.

What direction does the coolant flow in a 1978 Pontiac 400?

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What controls the pump which moves the water through the heater core on a 2000 Chevy venture?

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What could be wrong if you are not getting hot water from your water heater?

Check the heating elements in the water heater. These may be bad and need replaced.

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lack of proper care. lack of proper (distilled) water in the radiator.

What is a heater core?

The heater core is a small radiator inside the car under the dash that hot water circulates through to heat the inside of the car.

What is a heater core do?

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I recently bought a 1992 Grand Prix and the heater died but the rear defrost still works Any suggestions?

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