GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2007
🢒
Sierra - 4WD
🢒
Driveline/Axle
🢒
Front Drive Axle
🢒 Upper Oil Pan Cleaning and Inspection
Clean the upper oil pan.
Carefully clean the sealer from the threaded holes.
Inspect the upper oil pan for cracks.
Inspect the upper oil pan sealing surfaces for damage.
Replace the upper oil pan if any damage is found.