Removal & Installation
If the vehicle is equipped with air suspension, the electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the luggage compartment. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations. Failure to follow these instructions may result in personal injury.
Remove or disconnect the following:
- With a sharp awl, carefully punch a small hole in the metal portion of the seal.
Remove the seal using a slide hammer with a sheet metal screw attached.
NOTEIf the oil leak is coming from around the seal retainer, the retainer must also be removed and resealed.
If the seal retainer was removed, carefully clean the sealant from the retainer and engine block using a plastic scraper. Remove any oil or grease residue from the sealing surfaces with a solvent.
- Apply silicone sealant to the back of the retainer and immediately install it on the engine block. Tighten the bolts in sequence to 71-107 inch lbs. (8-12 Nm).
- Lubricate the seal and the crankshaft with clean engine oil.
- Install the seal with the spring side toward the engine.
- Remove the installation tool.
Install or connect the following:
Flexplate or flywheel. Tighten the bolts, in a crisscross pattern, to 54-64 ft. lbs. (73-87 Nm).
- Check the engine oil level.
- Start the engine and check for leaks.
- Disconnect the negative battery cable.
- Remove the transmission; refer to Section 7.
- Remove the flexplate from the crankshaft.
- Punch 2 holes in the crankshaft rear oil seal on opposite sides of the crankshaft, just above the bearing cap to cylinder block split line. Install a sheet metal screw in each of the holes or use a small slide hammer and pry the crankshaft rear main oil seal from the block.
Use extreme caution not to scratch the crankshaft oil seal surface.
- Clean the oil seal recess in the cylinder block and main bearing cap.
- Coat the seal and all of the seal mounting surfaces with oil. Position the seal on rear main seal installer or an equivalent seal installer, and position the tool and seal to the rear of the engine.
- Alternate bolt tightening to seat the seal properly. The rear face of the seal must be within 0.005 in. (0.127mm) of the rear face of the block.
- Install the flexplate. Apply pipe sealant to the flexplate bolt threads, then tighten them, in a crisscross pattern, to 75-85 ft. lbs. (102-115 Nm).
- Install the transmission and lower the vehicle.
- Connect the negative battery cable, start the engine and check for leaks.