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Old 04-10-2016, 08:35 AM
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Engine Noise on 2010 JK, 55,000 miles

Been searching this forum and doing alot of reading and replacing parts, but still have not found the cure. I'm hoping I can get the answer to my issue without wasting too much more money.
When I accelerate the engine sounds like it has bad gas and makes like a gurgle sound, that's my best way to try to explain it. So after researching the problem, I've replaced the knock sensor, spark plugs, changed to 93 octane gas, and even paid for a full injector flush and cleaning. The jeep stayed quiet for a couple of months but it's back again but not as bad as before. I bought this jeep with 30,000 miles on it from a jeep dealer and hoping for cure and not to replace the engine.
Any help would be greatly appreciated.

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Old 04-10-2016, 08:48 AM
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Typo on first post. Used 91 octane from Mobil. Some call it pinging, I couldn't think of the right term to use.

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Old 04-10-2016, 09:28 AM   #3
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Originally Posted by m109rider View Post
Typo on first post. Used 91 octane from Mobil. Some call it pinging, I couldn't think of the right term to use.
Mine started pinging recently too. I have 51k on mine "2010 jk". Goes away with 93 octane. I am running the 87 superchips tune though. Was thinking it might be the egr valve. I'm going to give it some time I'm running some techron through it right now. Wonder if it could be something in the gas formulation or changing over blends? Ran that tune for last two years no problem and it just started about 1000 miles ago/month ago. Keep me in the loop.
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Old 04-10-2016, 09:49 AM   #4
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Back with carburetors you could fine mist a little water while Erving to clean the cylinder heads, valves and the piston domes of carbon buildup. If you aren't lugging the engine and it is pinging there is a good chance it may be 'dirty' in there. Pull your plugs and see if they are gapped correctly and burning hot enough, but not too hot.

If it was used (and I don't know how to do this) check if it is running something other than the stock tune.
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