OEM 2007 GMC Savana 2500 Valve Stem Oil Seal

2007 GMC Savana 2500 Parts Questions & Experts Answers

• Q: What tools are required to service and repair the valve guide seal, replace the valve stem oil seal, and valve spring on 2007 GMC Savana 2500?

  A: If you want to fix and service the valve guide seal as well as replace the Valve Stem Oil Seal and valve spring, you will need the below tools: have a Spark Plug port adapter (J 22794), valve spring compressor (J 38606), and valve begin by taking off the valve Rocker Arm and loosening the Spark Plug wire by twisting the boot 1/2 turn and pulling the boot away. While the engine is still at room temperature, loosen the Spark Plug 1 or 2 turns, then brush or blow away any pieces of dirt before you take it out. Put the Spark Plug port adapter (J 22794) into the Spark Plug hole, connect an air hose, and blow compressed air to keep the valves from moving. Take the valve spring compressor (J 38606) and squeeze the valve spring, then gently take out the valve stem keys and let go of the tension on the spring, before sliding the compressor off. After that, unscrew the valve spring cap, lift out the valve spring and valve guide seal, making sure the shim comes off with them. Make sure to clean the cylinder head valve spring seat or shim area before lubricating the valve guide and the oil seal with fresh engine oil, then place the valve guide seal and shim. Set the valve spring and cap onto the valve, clamp the spring with the valve spring compressor (J 38606) and put grease on the valve keys before pushing them in place. Ease the pressure on the valve spring and make sure the valve keys don't move before you pull out the compressor. You can use a plastic faced hammer and softly tap the valve stem tip to ensure the keys are fully seated. After that, take out the Spark Plug port adapter (J 22794), turn the Spark Plug with your hand, and tighten it to 15 n.m (11 lb ft). Make sure each boot is pushed sideways while reinstalling the Spark Plug Wires at the Ignition Coil and Spark Plug, and then fit the Rocker Arm back in place.