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Unread 09-11-2012, 07:55 PM   #1
Robtheman
Registered User
2011 JK Wrangler 
 
Join Date: Sep 2012
Location: Calgary, Alberta
Posts: 1
2011 JK 3.8 litre engine knock

My wrangler unlimited Rubicon has started pinging (pre-ignition knock) loudly at all engine speeds- even up to 3500 rpm send in all gears. I have 6 speed manual. Dealer is resisting any warranty claim. Anyone else having this problem?

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