Chevrolet TSB #PIP5517A
2018 Chevrolet Malibu
Affected Component: ENGINE (PWS)
- This Preliminary information communicates the following to the dealer. If an engine oil leak has been isolated to the front crankshaft seal, check for misfires low engine compression and/or cylinder leakage readings. These issues could cause excessive positive crankcase pressure leading to engine oil leaks.