Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

H3 coolant leak in a pipe at the rear of the engine

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Old Aug 4, 2023 | 07:26 PM
  #1  
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Default H3 coolant leak in a pipe at the rear of the engine

Hi all, if its OK I'd like to ask a question about a pipe leak I have found in my H3 3.7. As per the picture Ive found a hole in a pipe in possibly the worst place you could ge one. It appears to be a pipe to the heater or similar. Where would I find a replacement and I don't suppose anyone would have a suggestion on how to go about changing this part?

thanks



 
Old Aug 4, 2023 | 08:05 PM
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Wrong forum! The H3 heater core is connected here:

 
Old Aug 4, 2023 | 08:09 PM
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Sorry, did I put this in the wrong place? Yea, its the pipe the heater hoses are connected to that appears to have the hole.
 
Old Aug 4, 2023 | 08:13 PM
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PS, My H3 is Right hand drive
 
Old Aug 8, 2023 | 01:43 PM
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Welcome.

MOVED to the H3 section where all H3 questions go. Are you talking about #11 below? PIPE. Heater = Part Number: 12564053 Supersession(s): 12624499 which is no longer available. Might be tough to find one. You may have to remove it, repair it like through a radiator repair business, then reinstall?


 
Old Aug 8, 2023 | 01:56 PM
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Hmm, perhaps I could replace the whole section with a new flexable pipe?
 
Old Aug 8, 2023 | 02:05 PM
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I think its differen


t from the diagram due to being a right hand drive, I'll need to try and trace the pipes that dissappear around the back of the engine.
 
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