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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1355 (Automatic Transmission - ALLISON - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Low Main Line Pressure in Specific Ranges, Normal Pressure in Other Ranges

Low Main Line Pressure in Specific Ranges, Normal Pressure in Other Ranges

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Condition Action
Seal leak Replace the seals that are causing low pressure in a particular range.