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Old October 6th, 2011, 08:59 PM   #1
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Default 2004 Durango Hemi went Kablooey - Update - Running Again

My wife has a clean 2004 Durango with the 5.7 Hemi. We have owned this thing since 2007 and its been great, no problems, and we've loved it. The other morning she fired it up and it is knocking like crazy, seems like piston/top noise. No warning, just happenend immediately.

I've researched it quite heavily, and talked to the rebuilders. I guess it is fairly common for the early 2004-2006 Hemi motors to have a valve break off, lodge in the piston, and cause fatal failure. I'm not complaining, as we got 50,000 miles of use before this happened (now has 140,000 miles on it).

A rebuild is going to run 3,500-4,000, which will give me a 3 year 250,000 mile warranty. Not too bad, but I'd still have a 15 mpg SUV

Or, I could swap in one of my 3.9 cummins 4bt motors (I have them in stock) which would be a huge undertaking (new trans, figure out how to get the t-case and dash electrical working, etc.) But it would probably net me a 30 mpg SUV.

Which way would you go?
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