Question about 1997 Chevrolet Astro

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Leaking coolant from rear heater core in my astro van

Can i plug the coolant lines to the rear heater core on my conversion van without any damage to cooling system?

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  • Anonymous Feb 03, 2009

    do you need to remove the dashboard to fix heater core in a 2000 Astro

  • Anonymous Feb 03, 2009

    do I have to remove the dashboard to fix a bad heater core on a 2000 astro van

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  • 16 Answers

You can hook the two line together that will fix your problem with no problems

Posted on Nov 25, 2008

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1 Answer

Remove the rear heater core on a 99 astro van


remove the inside trim panels on the left hand side. Most "snap" into place, but look for screws first before pulling on the panel edges.

Dec 03, 2014 | 1999 Chevrolet Astro

1 Answer

Cool air blowing from heater in front and back heaters in 2000 asto van


Have you checked the coolant level? If it is low on coolant, none will circulate through your heater core. Check your reservoir and your radiator (when cold only). If that isn't the problem, check the hoses to the heater core to see if one is hotter than the other. They should both be at least warm, but the inlet hose should be slightly warmer. This is all assuming that your thermostat is good and your van actually gets warm when you're driving it. In the situation your coolant is low, fill it. In the situation your heater core is clogged up, it needs to be replaced. Obviously you'd rather just have to fill the coolant.

Another issue could be in your interior controls and duct work. My Astro doesn't blow on the heater setting at all on the driver's side. Electronics and electrical problems annoy me so I don't bother to fix it. There should be a duct that opens and closes to let in either cool or warm air, or a mixture of both. If that's your problem, I can't offer a solution besides a small heater you can plug in the cigarette lighter.

Feb 09, 2011 | 2000 Chevrolet Astro

1 Answer

How do u replace a heater core in a 1994 chevy g20 conversion van


If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 23, 2010 | 1994 Chevrolet G20

1 Answer

My 1995 astro van is fogging the windshield and leaking coolant into the front passenger side floor


You have a bad heater core it is located in the passenger side dash module , and it will fog the windshield with a film of coolant

Nov 26, 2010 | 1995 Chevrolet Astro

1 Answer

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


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.
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Aug 12, 2010 | 2002 Chevrolet Astro

2 Answers

Air, no heat '98 Astro. No leaks, engine


It sounds to me that you may have 2 problems. 1). Air Lock in the Heater Core. 2). Inactive Heat Damper in the Plenum.

But since you state that the Heater Hoses do not get warm that is indicative of an Air Lock in the Heater Core. This is a relatively simple fix. It is best performed COLD but requires a method of pressurizing the Cooling System. All reputable Auto Parts stores Sell and/or Rent Pumps that temporarily replace the Radiator Pressure Cap for Leak tests and curing Air Lock. The Collant Level must be filled FULL then pressurized and then loosening the Highest Heater Hose at the Firewall so that Air and a Small Amount of Coolant escapes. Once all the Air has escaped tighten the Heater Hose Clamp, remove the Pressure Pump, Restore the Collant Level to FULL, re-install the Pressure Cap and Start the Engine. As it Warms up you should be able to feel coolant running through the Heater Hoses and they should become warm.

Dec 07, 2009 | 1998 Chevrolet Astro

1 Answer

Our 2001 Chevrolet Astro Van heater not working?


Could be a bad heater core, any fluid leaking around it...check under the carpet and padding if you don't see anything under it on the ground. Your coolant may also be low, and it isn't circulating to the heater core, or a vacuum line may be off the hot/cold gate on the heater box, there are a lot of possible causes, but i would check for leaks and fluid level first

Nov 28, 2009 | 1999 Chevrolet Astro

3 Answers

Check eng light


1 Inspect Oil Pan Gasket - Performance Ruptured, cracked or leaking radiator hose. grey_line.gif 2 Inspect Hose (Bypass) Ruptured, cracked or leaking bypass hose. grey_line.gif 3 Inspect Hose (Heater) Ruptured, cracked or leaking heater hose. grey_line.gif 4 Inspect Radiator Cap Worn or damaged radiator cap grey_line.gif 5 Inspect Heater Core Heater core may be leaking antifreeze/coolant into the vehicle`s floor area. grey_line.gif 6 Inspect Heater Control Valve Leaking or defective heater control valve. grey_line.gif 7 Inspect Radiator Drain Plug Loose, damaged, or faulty radiator drain plug. grey_line.gif 8 Inspect Radiator Rusted, corroded, or damaged radiator may be leaking antifreeze/coolant grey_line.gif 9 Inspect Water Pump Damaged, worn or leaking water pump. grey_line.gif 10 Inspect Cooling System Mix Coolant level low or flow is restricted. grey_line.gif 11 Inspect Head Gasket - Performance Blown head gasket grey_line.gif 12 Inspect Hood Brace Leaking, worn, or damaged intake manifold gasket grey_line.gif 13 Inspect Freeze Plug Freeze plugs are cracked or leaking.

Dec 02, 2008 | 2003 Jaguar Vanden Plas

1 Answer

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.

Nov 29, 2008 | 1995 Chevrolet Astro

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