Chevrolet TSB #PIP5723
2020 Chevrolet Corvette
Affected Component: EQUIPMENT
- Summary
- This Preliminary information communicates Some customers may comment on a hiss or vacuum leak noise coming from the engine compartment during normal engine operation. Or upon inspection technician may notice the hiss or vacuum leak noise coming from the foul air PCV tube to intake connection. This condition is caused by normal air flow through the PCV tube