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Old 10-05-2010, 10:43 AM   #26
Scooby Specialist
Member#: 56754
Join Date: Mar 2004
Chapter/Region: NESIC
Location: Mass
2004 Hybrid 2.5XTR
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Originally Posted by Harman Motive, Inc. View Post
Like jkopinga said; pre-ignition. Melts holes in pistons really quick. Probably happened due to a lean condition and a lot of knock.

This is one of the better write-up on pre-ignition and detonation online:

Great read! Since your injectors came back fine and your fuel pump was upgraded not too long ago with a walboro, I am leaning towards detonation as being the cause of your issues.
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