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-   -   wanting to know if im the only jeeper.... (http://www.wranglerforum.com/f19/wanting-to-know-if-im-the-only-jeeper-92321.html)

rmburwell 05-04-2011 08:42 PM

wanting to know if im the only jeeper....
 
that has a knocking sound .. it isnt terribly loud and is low piched almost hollow sounding. and goes away when car is warm . professionally diagnosed as piston slap but ive been told the 4.0 exhaust sounds like that. just wondering if im the only one?! (:

it almost sounds like a diesel lol

jdmtru 05-05-2011 11:53 AM

sounds to me it may be your exhaust manifold... when it heats up the cracks if not severe they may re seal... i suggest an inspection of your exhaust manifold... If I am wrong someone will chime in and correct me...

rmburwell 05-05-2011 08:05 PM

is that common for the 4.0 tjs?

rmburwell 05-05-2011 08:06 PM

would that give it the rythmic soundof a "knock" ?


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