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I own a 2001 Chevy blazer, 4.3 liter engine. The diagram I will attach will show the failure part but none seem available. I'm sure you have seen this before. Now the wiring harness has melted half way thru. Thanks for any suggestion on how to fix this.


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Location: Oregon
first thing is to replace the part numbered #9 in your diagram. that should be a one way check valve. When that valve goes bad it allows hot exhaust gases back into the rubber tube and that's why the rubber parts gets burned up over time.

because the parts are over 15 years now, it could be problematic to find the exact parts you need. Check with ACdelco online cataloging to see if you can find the correct parts you need. You may not be able to buy the parts that you need individually. It may come on a set of parts.


   
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Thanks for the answer. Ordered the part today.


   
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