Question about 2005 Jeep Grand Cherokee
The truck is making a knocking noise with acceleration. The hemi still hums and everything is running normal but there is a loud annoying knocking with the hum of the engine. What could this be?
It could possibly be "detonation" knock .. try using some premium (high) octane fuel and possibly an octane additive for a tank or two ..
Posted on Feb 21, 2009
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Posted on Jan 02, 2017
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