OEM 2003 GMC Savana 3500 Camshaft

2003 GMC Savana 3500 Parts Questions & Experts Answers

• Q: How to replace the camshaft on 2003 GMC Savana 3500?

  A: Before replacing the Camshaft remove the radiator support and engine front cover along with valve lifters and Camshaft sensor bolt plus sensor. Ensure the marks on the Crankshaft and Camshaft sprockets align during engine rotation before moving the Crankshaft after Timing Chain removal since this prevents valve or piston assembly damage. You must remove the Camshaft sprocket before repositioning the Timing Chain while installing the Camshaft retainer bolts and retainer with the precaution to protect Camshaft bearings because all Camshaft journals share a unified diameter. Initial the Camshaft removal by placing three m8-1.25 x 100 mm bolts into the front Camshaft holes then use these bolts as a rotation tool to extract the Camshaft from the engine block before removing the bolts. Check for any cleaning needs on the Camshaft along with performing an inspection of both the bearings and Camshaft. Before placement, apply clean engine oil to the Camshaft's journals and bearings before reinstalling the three same bolts for Camshaft insertion into the engine block with bolt removal to follow. Reduce installation friction by setting the retainer plate with its gasket against the engine block while maintaining a debris-free gasket surface. The procedure includes placing the Camshaft retainer bolted with 25 nm (18 ft. Lbs.) torque then mounting the Camshaft sprocket and setting the Timing Chain before tightening the Camshaft sprocket bolts to 35 nm (26 ft. Lbs.). Check the condition of the Camshaft sensor o-ring seal and then proceed. The Camshaft sensor should receive clean engine oil for lubrication before installation alongside its bolt. Torque the bolt to a 25 nm (18 ft. Lbs.) setting. You should install valve lifters after mounting the front cover and radiator support.