Engine Oil Leak At Side Of Oil Pan - keywords bearing bolt cap crankshaft engine leak loose main oil pan side

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Some owners may comment about an engine oil leak. Upon inspection you may find that the oil leak appears to be coming from one of the bolts that secure the side of the oil pan to the crankshaft main bearing caps inside the pan.

Do NOT attempt to tighten or loosen any oil pan bolts. Engineering is looking for a vehicle in the "Metro Detroit" (Southeast Michigan) area that exhibits the condition. Dealers in the "Metro Detroit" area that have a vehicle that exhibits the condition should contact Jim Kelly at (586) 492-5612. He will assist in making arrangements for Engineering to review the vehicle at your Metro Detroit area location.

All Other Dealers:

Using a dial type torque wrench verify that the oil pan SIDE bolt in question is tightened to 50 Nm (37 lb ft). If the bolt is NOT tight remove the bolt and inspect for the presence of a sealing material on the underside of the bolt head flange. If the sealing material is NOT present, replace the bolt with a new bolt (P/N 10227348). Verify that the new bolt has the sealing material, install and tighten to specification.

If the sealing material IS present on the removed bolt, inspect the machined surface around the bolt hole in the oil pan for any imperfections. Replace the pan if any are found using the information and tightening information in SI.

Then contact Jim Kelly at (586) 492-5612 and supply him with the VIN, mileage, bolt location (left / right, front / rear) and your findings.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.