How to install a heater core on a 2000 chevy astro

check the hoses to the front heater core. It sounds like the front heater core is plugged.

Blocked air intake to system?

can be clogged heater core,try inspecting the heater core.

HEATER CORE REPLACEMENT

If its clogged it can be cleared with the use of Garden hose p[ump.The water has to be turn into the heater hose line and then water has to be removed out via the pump.

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For complete step by step procedure,refer heater core flushing and other help links mentioned below.

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Click the link below:-----

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How to Flush Heater Core?

http://schematicsdiagram.blogspot.com/2011/12/how-to-flush-heater-core.html

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How to replace heater core on Chevy Astro?

http://schematicsdiagram.blogspot.in/2012/03/how-to-replace-heater-core-on-chevy.html

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Replacing heater core for grand marque?

http://schematicsdiagram.blogspot.in/2012/03/replacing-heater-core-for-grand-marque.html

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How to replace heater core for All car models?

Click the link below:---

http://technoanswers.blogspot.com/2011/11/how-to-replace-heater-core-for-all-car.html

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How to replace heater core on Buick Regal?

http://howtobyme.blogspot.in/2012/02/how-to-replace-heater-core-on-buick.html

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How to Remove Heater Core on 2008 Honda Odyssey?

http://howtobyme.blogspot.com/2011/12/how-to-remove-heater-core-on-2008-honda.html

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Honda Heater Core Replacement?

http://howtobyme.blogspot.com/2011/12/honda-heater-core-replacement.html

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How to replace heater core on Mitsubishi magna?

http://technoanswers.blogspot.in/2012/02/how-to-replace-heater-core-on.html

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How to replace heater core on Mitsubishi eclipse?

http://technoanswers.blogspot.in/2012/02/how-to-replace-heater-core-on_10.html

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These will help.

Thanks.

1. Drain the engine coolant.
   
2. Reposition the outlet heater hose clamp at the heater core.
3. Remove the outlet heater hose from the heater core.
4. Reposition the inlet heater hose clamp at the heater core.
5. Remove the inlet heater hose from the heater core.
6. Remove the screws that retain the cover to the heater case assembly. This is located underneath the dash on the passenger side.
   
7. Remove the straps that retain the heater core to the heater case assembly.
8. Remove the heater core from the vehicle.

Heater Core Removal & Installation To Remove:

1. Drain the engine coolant.
2. Release and reposition the outlet heater hose clamp at the heater core.
3. Remove the outlet heater hose from the heater core.
4. Release and reposition the inlet heater hose clamp at the heater core.
5. Remove the inlet heater hose from the heater core.
6. Remove the screws that retain the cover to the heater case assembly.
7. Remove the straps that retain the heater core to the heater case assembly.
8. Remove the heater core from the vehicle.

To Install:

1. Installation is the reverse of removal.
2. Refill the cooling system.

hello, should be able to get to heater coil on passenger side under dash, you will have to pull a cover thats over the heater coil off, there should be between 5 and 10 screws that hold cover on.

the problem is probably the heater core, it can become clogged with dribris. this stops heat from the engine getting to it and then no heat.

There are 2 hoses that go thru the firewall on the passenger side. One carries hot water from the engine water jacket, to heat the core, and the other brings the water back to the radiator. Follow the hoses to see which one goes to the radiator and the other will be the heater intake. Another way to tell, with the heat on, the hotter of the 2 will be the intake.

when your car is in defrost it has an ac cycling it removes the moisture then sends the air over the heater core depending on how warm you set it you can feel warm or cold but the ac is always cycling...ridding the moisture...you need a good ac tech it will be okay...its just expensive going into the heater core if needed...!