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2012 Chevrolet Silverado 3500 HD Question: The diesel brake exhaust system smiles when I come up to a stop

 

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clopz, San Diego, CA, October 19, 2012, 23:37
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What causes the diesel brake exhaust system to smoke when I come to a stop light on my 2012 3500 HD diesel truck with Allisontransmissionand what can I do

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