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KNOCKING SOUND FROM ENGINE OF CAYENNE S 2011

 
Old 10-17-2012, 04:16 PM
  #16  
r6bruin
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Originally Posted by 993BillW View Post
You're forgetting 1 ltr of oil every 650 mi.


....though mine uses less than 1/4 qt. in 7,500 mi.
Haha... yea... that too!
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Old 04-12-2014, 11:35 PM
  #17  
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This is crazy that they still didn't get that right, check shields my plastic cover rattled

Last edited by ndx; 04-18-2014 at 02:05 PM. Reason: correction
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Old 04-13-2014, 07:46 AM
  #18  
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Good gawd not this again already! I seriously hope Porsche would have solved the issues with the v8 Cayenne's by now.. Are any of you guys using oil?
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Old 04-14-2014, 01:41 PM
  #19  
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I had the same on my 11 S, they did a remap and that seemed to quiet the knocking(in 2-3 gear under 30 mph). I'm also a blown coolant manifold victim, Im hoping that engine overheat did cause the knocking.
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Old 07-30-2014, 04:46 PM
  #20  
Andy E.
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After having tested various brands of super high-octane fuel with negative results, I recently dished out $10 for a small bottle of 104+ Octane Boost into one full tank of gas.

http://www.goldeagle.com/product/104-octane-boost

I'm now proud to say that the pinging/pre-ignition/detonation at light acceleration has completely disappeared. It looks like PAG may have made a good point regarding our inferior fuel....

Will wait until a 1/2-tank and re-fill to full so that it can be determined how much of this stuff is actually required to silence the beast and maximize the $10 investment.
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Old 08-01-2014, 04:52 PM
  #21  
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Had this for a couple weeks on my '09 CTTS. Must have filled a tank of bad gas or moisture. Resolved its self after a couple fill-ups.
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Old 08-02-2014, 12:09 AM
  #22  
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Ask your dealer, if you get an ecu tune and the knocking go's away, if they will pay for it. Your engine shouldn't knock or ping on anything 93 or above. Not even in 105* weather with the a/c on full and lugging the engine. Not a stock vehicle-

Better yet if your worried go to harbor freight and spend 100$ on a borescope and compression tester and check yourself.
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Old 08-06-2014, 12:33 AM
  #23  
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i would seafoam it out, specifically the fuel lines and injectors.
something is not right my guess there is crap in the injectors because the fuel does not seem to atomize correctly..
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Old 02-25-2018, 11:13 PM
  #24  
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Hi Andy,

This is one old​​​​​​ thread but my 2011 S does same thing light load 3-4 gear I getting ping ...

Are you still using the octane booster

Originally Posted by Andy E. View Post
After having tested various brands of super high-octane fuel with negative results, I recently dished out $10 for a small bottle of 104+ Octane Boost into one full tank of gas.

http://www.goldeagle.com/product/104-octane-boost

I'm now proud to say that the pinging/pre-ignition/detonation at light acceleration has completely disappeared. It looks like PAG may have made a good point regarding our inferior fuel....

Will wait until a 1/2-tank and re-fill to full so that it can be determined how much of this stuff is actually required to silence the beast and maximize the $10 investment.
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Old 02-26-2018, 01:37 AM
  #25  
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Indeed it is an oldie - 4 years old actually. I'm moving it to the 958 subforum where it will now reside.. hang on!
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Old 02-26-2018, 01:37 AM
  #26  
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Indeed it is an oldie - 4 years old actually. I'm moving it to the 958 subforum where it will now reside.. hang on!
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