For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Low Main Line Pressure in Specific Ranges, Normal Pressure in Other Ranges

Low Main Line Pressure in Specific Ranges, Normal Pressure in Other Ranges for GMC Truck Sierra Denali 2009

Condition	Action
Seal leak	Replace the seals that are causing low pressure in a particular range.