96 Tahoe Heater core replacement

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  #1  
Old 01-19-08, 07:28 AM
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96 Tahoe Heater core replacement

How do I replace a heater core in my 96 Tahoe?
 
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  #2  
Old 01-19-08, 07:31 AM
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First, I would get a Chilton, Haynes, or Alldatadiy.com subscription to help you out since this is not an easy task.

It requires you to drain all the coolant, remove/disassemble dashboard, remove airbox, disconnect heater core hoses and core bolts.

This was a short run down of what needs to be done.

Is the core leaking? Do you not have heat? Have you tried flushing it and adding a stop leak product?
 
  #3  
Old 01-19-08, 07:37 AM
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Originally Posted by HotinOKC View Post
First, I would get a Chilton, Haynes, or Alldatadiy.com subscription to help you out since this is not an easy task.

It requires you to drain all the coolant, remove/disassemble dashboard, remove airbox, disconnect heater core hoses and core bolts.

This was a short run down of what needs to be done.

Is the core leaking? Do you not have heat? Have you tried flushing it and adding a stop leak product?
It is just starting to leak on the right hand side of truck front tire. Nothing leaking inside of truck.
 
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Old 01-19-08, 07:45 AM
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Is the core inside the truck or mounted under hood on firewall?
 
  #5  
Old 01-19-08, 08:45 AM
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It's inside the truck, behind the dash. There is a drain in the firewall for the evaporator core condensation. The case is filling up with antifreeze and dripping from the drain. You might want to double check though, as the coolant reservoir might just be leaking.
 
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