{"nhtsa_id":10126309,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-12-22","date":"2014-06-26","document_id":"PI1207B","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This PI provides direction to replace the pistons if spark knock is present and the MIL is illuminated, first by checking the frequency range using the GDS2 coinciding with piston slap.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10126309-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2014/MC-10126309-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10126309","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SPARK","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_chevrolet_spark"]},{"make":"CHEVROLET","model":"SPARK EV","year_from":2014,"year_to":2014,"match":"base","vehicle_ids":["2014_chevrolet_spark"]}],"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":[]}