Genuine 1996 Pontiac Grand Prix Crankshaft Seal

1996 Pontiac Grand Prix Crankshaft Seal Parts Questions & Experts Answers

• Q:

  How to replace the front crankshaft seal in 3.8L V6 engine on 1996 Pontiac Grand Prix?

  Posted by Howie R.

  A:

  Remove the vibration damper and the crankshaft position sensor shield if equipped. If there's a groove worn into the seal contact surface on the vibration damper, sleeves are available that fit over the groove, restoring the contact surface to like-new condition; these sleeves are sometimes included with the seal kit, so check with your parts supplier for details. Pry the old oil seal out with a seal removal tool or a screwdriver, being very careful not to nick or otherwise damage the crankshaft in the process. Apply a thin coat of RTV-type sealant to the outer edge of the new seal and lubricate the seal lip with moly-base grease or clean engine oil. Place the seal squarely in position in the bore and press it into place with a special tool, ensuring that the seal enters the bore squarely and seats completely. If the special tool is unavailable, carefully guide the seal into place with a large socket or piece of pipe and a hammer, making sure the outer diameter of the socket or pipe matches the seal's outer diameter. Install the vibration damper and reinstall the remaining parts in the reverse order of removal. Start the engine and check for oil leaks at the seal.

  Answered by GM Parts Specialist Julian / May 11, 2022