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How to replace a heater core in a 2002 chevy astro van

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  • Chevrolet Master
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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.
how to replace a heater core in a 2002 chevy astro - prev.gif next.gif

Posted on Aug 12, 2010

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6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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steve pierce

  • 105 Answers

SOURCE: do you have to remove the dash to get to the front

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.

Posted on Feb 06, 2010

Rene J Solis

  • 1796 Answers

SOURCE: Just need to know how

Hi!! Under the hood, here is a blow out diagram of the heater core housing.
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Posted on Sep 30, 2010

BILL RICHARDSON

  • 508 Answers

SOURCE: Heater hose, 95 Astro

SOUNDS AS THOUGH THE HEATER CORE IS PLUGGED. TRY BACK FLUSHING IT AGAIN. IF YOU STILL GET NO FLOW IT IS MORE THAN LIKELY PLUGGED AND WILL NEED TO BE REPLACED. THE TUBES ARE VERY SMALL AND PLUG EASILY WITH RUST.

Posted on Jan 24, 2009

alicantecoli

Colin Stickland

  • 22485 Answers

SOURCE: What makes the Heater Core

simple not using antifreeze ,the water corrodes anything and everything

Posted on Aug 26, 2011

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  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.
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