Chirping type noise from the upper engine front cover area at warm or hot idle

Bulletin number

TSB19-2140

Component

Engine and engine cooling

Summary

Some 2018-2019 F-150 and Mustang vehicles equipped with a 5.0L engine built on or before 30-Apr-2019 may exhibit a chirping type noise from the upper engine front cover area at warm or hot idle. This noise may sound similar to a front engine accessory drive (FEAD) chirp noise. This may be due to the primary timing chain tensioner oil pressure relief valve. To correct the condition, replace the primary timing chain tensioners. Follow the Service Procedure.

Owners of these vehicles have filed 1,100 complaints in the engine category.