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How do I remove a 92 suburban heater core? - 2003 Chevrolet Suburban 2500

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Posted on Jan 02, 2017

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SOURCE: how to remove heater core

You start by draining off some of the coolant. Open the radiator drain petcock on the drivers side of the radiator. You only need to drain off a half gallon or a little less. Loosen the two hose clamps leading to the heater core. You may have to twist the hoses slightly to brake them free. Now the fun starts. Remove the glove compartment by removing the eight screws at the bottom. With that out of the way you should be able to see the hearer control box. On top of this box is two cables. Remove them by gently prying off the slip clamps with a screw driver. there is also a holding clamp on both of the cables simply remove the screw on both clamps and the cables will come free. Now you remove the three bolts holding the box to the firewall. The ducts attach to the box in different ways depending on what model of suburban you have. Some snap together but most will have screws. Look closely before forcing the ducts apart! Almost done. there are three bolts under the hood on the passenger side. One is on the top of the a/c box two are below it. Only one is difficult to get to. It is located right below the blower motor housing. The easiest thing to do is to use a long extension and a universal joint with a deep socket. Some people take the inner fender off but I don’t recommend it as 16 bolts hold it in place. With all that done the box should be pulled strait out, just before it hit’s the dash, drop it down and out.

Posted on Dec 25, 2009

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SOURCE: Why are heaters are not working on 95 suburban?

try flushing the heater core with a garden hose

Posted on Mar 01, 2009

  • 61 Answers

SOURCE: how to replacemy heater core in a 92 chevy caprice

with or with a/c

Posted on Dec 13, 2009

  • 93 Answers

SOURCE: how to change heater core in 92 chevy pick up

unfortunately the fastest easiest way is usualy to remove the entire dash and its about a 2 day job

Posted on Feb 11, 2010

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I need to install a heatercore on a 92 olds cutlass 3.3 engine not sure howto install need instructions on removal and replacement.


  1. Disconnect the negative battery cable and drain the cooling system.
  2. Disconnect the heater hoses from the heater core inlet and outlet connections in the engine compartment.
  3. Allowing residual coolant from the heater core to drain. Cap the openings.
  4. Working inside the vehicle, remove the lower instrument panel sound insulator and look for where the air blows to your feet.
  5. Remove the heater floor outlet duct screws or clips and remove the duct.
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Most are under dash inside heater box you have to disconnect all cables and hose lines .before you can remove core also have to drain coolant out of core...It is a lot of work and not always easy to get back in and sometimes cables do not work as well as they did before repair i personally suggest you get a price from a good Rad shop it may save you a lot of greif in the long run....good luck on your decision also in my taraus I had to remove the entire dash to get at the core

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When I replaced the heater core on my 95 Suburban, I seem to remember having to disconnect the A/C lines on the firewall for the evaporator. There were also several nuts to remove on the engine firewall side from studs on the heater box that pass thru the firewall. It is definately a lot of work.

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if you can get me a picture i can help you out. blue_dragon45801@yahoo

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