engine ping

I just purchased a used 2005 Armada. the engine pings constantly even though I use high test gasoline. the nissan dealer looked at the car and stated the timing is correct. what else could cause the pinging of the engine when driving?

Reply to
rabkal
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Reply to
Steve B

"Steve B" wrote in news:g9mgq4$4me$ snipped-for-privacy@localhost.localdomain:

shouldn't the ECM set a trouble code?

Reply to
Jim Yanik

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