{"nhtsa_id":11036590,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-09-01","date":"2026-08-26","document_id":"TSB M257005 202608","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Loose CCV mounting bolts and oil leak at CCV due to cracking of the housing. Mounting hardware found to be under-torqued after the vehicle was delivered.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036590-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036590-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036590","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"PIONEER PR (4)","year_from":2025,"year_to":2027,"match":"base","vehicle_ids":["2025_mack_pioneer","2026_mack_pioneer","2027_mack_pioneer"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}