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Old 07-12-2006, 09:12 AM
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Pinging in my 4.8is
Gang,
Anybody ever have any problems with pinging on their 4.8is or other X5s? This summer my 4.8 has started pinging under light load, and switching gas hasn't seemed to work. I'm sure if I take it to the dealer they'll tell me nothing is wrong with it, so I figured I'd start here.

Octane in Ohio is 93 for premium, and I've tried;
Shell
BP/Amoco
Sunoco 93 and 94

Any thoughts?
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2008 X5 4.8 (wifey)
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Old 07-12-2006, 09:30 AM
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Take It To The Dealer
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Old 07-12-2006, 10:32 AM
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Quote:
Originally Posted by f355b
Take It To The Dealer
Dealer response:
Can't duplicate problem...
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Old 07-12-2006, 10:40 AM
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I Fking Hate The Dealers!! I Had To Tell Them Please Do Not Wash My Car I Saw Them Wasing A 7 With A Bucket Of Dirty Water And Some Old Sponge.
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Old 07-12-2006, 01:09 PM
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Arrow Get it checked...
Quote:
Originally Posted by Scott in Cincy
Gang,
Anybody ever have any problems with pinging on their 4.8is or other X5s? This summer my 4.8 has started pinging under light load, and switching gas hasn't seemed to work. I'm sure if I take it to the dealer they'll tell me nothing is wrong with it, so I figured I'd start here.

Octane in Ohio is 93 for premium, and I've tried;
Shell
BP/Amoco
Sunoco 93 and 94

Any thoughts?
Could it be the re-formulated gas Even after you used Sunoco 94 your still getting the ping is not a good sign. It's probably not gas related. Take it in ASAP.

I have an 06 4.4 with a little over 3000 miles and always use Exxon/Mobil Super in NJ and Sunoco 94 when I'm in Toronto. Never had a problem with pinging.

Good luck and let us know what the dealer says.

Cheers
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Old 07-12-2006, 01:35 PM
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Is It Not A Spark Plug Or Timing Issue?
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Old 07-12-2006, 01:51 PM
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Search for LVR's threads. He's having this problem with his 4.8 too.
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Old 07-12-2006, 02:30 PM
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Detonation. Summer gas blends.
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Old 07-12-2006, 03:43 PM
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Knocking or Pining? How many miles are on the car? I had the same problem. Let me know, I think I can help, through my experience...
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Old 07-12-2006, 04:06 PM
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Quote:
Originally Posted by BIMMER DUDEE
Knocking or Pining? How many miles are on the car? I had the same problem. Let me know, I think I can help, through my experience...

Definitely pinging, not knocking. To me, knocking is a crankshaft issue and is due to oiling problems. This is a gas/ignition problem.

Any ideas? The car has about 20k miles on it now...

Thanks!
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2008 X5 4.8 (wifey)
2009 AMG E63 (Daily Driver)
1997 Porsche 993 Turbo
1968 Mustang GT Fastback -- Resto Project
1969 Firebird 400 -- Resto Project (Trans Am Replica)
1996 Saturn SC2 -- LeMons Racecar!
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