{"nhtsa_id":10130530,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-04-02","date":"2018-02-26","document_id":"M009174000","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"The function of the Intake Valve Actuation (IVA) piston is extremely sensitive to the torque applied to the jam nut. When the torque applied to the jam nut is higher than what is recommended in the service documentation, the piston may become sticky or seize causing erratic operation. Symptoms of a sticky or seized IVA piston could be misfire, white smoke, or -7 diagnostic codes. The piston will also be sticky or seized, but will move freely when the correct torque is applied.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10130530-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10130530-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10130530","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"torque-converter","name":"Torque converter","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CATERPILLAR","model":"CATERPILLAR","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]}],"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":[]}