For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Sierra - 4WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - Allison 🢒 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 - 4WD 2008

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