engine knock / tick inside cab at idle

racoon · #1 10-05-2009, 12:29 AM

After I did a tuneup, I got a new knock / tick sound. I think it is an electrical sound. It can only be heard from inside a quiet cab at idle. It changes rate with the engine rpm's. It makes nearly the same sound as the injectors when I did a sounding on the engine parts. I re-did the plug seating and no change. I did goof on the tuneup and left 2 spark plugs disconnected when I started the engine for 30 seconds. Maybe the computer adjusted something. '05 Durango 5.7L Hemi with 60k. Any ideas?

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fascistfaction · #2 10-05-2009, 08:48 AM

The computer will reset itself after a certain number of start ups. Put a higher grade of gasoline in and see if the knock subsides,
FF

racoon · #3 11-06-2009, 11:03 PM

I tried 89 octane, but no change in the sound. Thanks for the tip.