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smoky
Hello, I have an 05 GMC with the 6.6l in it and it has started to smoke out the exhaust the smoke is blue/grey?? it only does it when you are in drive with you foot on the brake,or just in park, but as soon as you step on it it clears up. Any thoughts thanks- 1 DOWN
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- Forum: 6.6L Duramax Diesel
