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Re: Duramax LB7 White Smoke Diagnostics
Posted to Technical Theory Forum on 2/16/2012

Hi Ryan,

Good info but would like to let people know that on your balance rate readings that they should be looked at in neutral and in drive with the brake fully depressed so you can hear the hydroboost hissing. In neutral max spec is +/- 6mm3 and in drive ... Login to read more.