Question: Hard Clunk when I turn off my ignition - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
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Duramax Third Generation: 2006-2007.5 (LBZ & LLY) Discuss the third generation (2006-2007.5 LBZ & LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion also belongs in this forum due to the similarities of the 2006 LBZ and the 2006 LLY. Engine related discussion ONLY.

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Old 09-08-2011, 01:34 AM   #1 (permalink)
FWIW
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Hard Clunk when I turn off my ignition

I am getting a loud clunk when I turn off the ignition. I am a Duramax Newbie so I do not know if that is normal. The truck starts and seems to run fine. It happens most of the time, not all the time.

Any ideas?

TIA
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Old 09-08-2011, 09:02 AM   #2 (permalink)
GMC2500HD
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Do you have video of this clunk or more description?
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Old 09-08-2011, 09:19 AM   #3 (permalink)
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Aftermarket exhaust? If so it is probably hitting when ignition is turned off, check and see.....
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Old 09-10-2011, 05:16 PM   #4 (permalink)
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Quote:
Originally Posted by DewRonInc View Post
Aftermarket exhaust? If so it is probably hitting when ignition is turned off, check and see.....
That was it. Thanks.
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