{"nhtsa_id":10112955,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-15","date":"2013-04-04","document_id":"PIP5104","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about vehicles that may have a cold engine tick noise for 50 seconds at start up. Technician determines if the tick noise is possibly coming from the exhaust manifold, as this noise could easily be mistaken for an engine tick noise. If your SI diagnosis does not isolate the cause of this concern, this concern should be considered a vehicle design characteristic of the ECM calibration and no additional repairs should be performed.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10112955-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10112955-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10112955","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2009,"year_to":2013,"match":"exact","vehicle_ids":["2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE ESV","year_from":2009,"year_to":2013,"match":"base","vehicle_ids":["2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade"]},{"make":"CADILLAC","model":"ESCALADE EXT","year_from":2009,"year_to":2013,"match":"base","vehicle_ids":["2009_cadillac_escalade","2010_cadillac_escalade","2011_cadillac_escalade","2012_cadillac_escalade","2013_cadillac_escalade"]},{"make":"CHEVROLET","model":"EXPRESS","year_from":2009,"year_to":2013,"match":"exact","vehicle_ids":["2009_chevrolet_express","2010_chevrolet_express","2011_chevrolet_express","2012_chevrolet_express","2013_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2009,"year_to":2013,"match":"exact","vehicle_ids":["2009_chevrolet_silverado","2010_chevrolet_silverado","2011_chevrolet_silverado","2012_chevrolet_silverado","2013_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2009,"year_to":2013,"match":"exact","vehicle_ids":["2009_chevrolet_suburban","2010_chevrolet_suburban","2011_chevrolet_suburban","2012_chevrolet_suburban","2013_chevrolet_suburban"]},{"make":"GMC","model":"SAVANA","year_from":2009,"year_to":2013,"match":"exact","vehicle_ids":["2009_gmc_savana","2010_gmc_savana","2011_gmc_savana","2012_gmc_savana","2013_gmc_savana"]},{"make":"GMC","model":"SIERRA","year_from":2009,"year_to":2013,"match":"exact","vehicle_ids":["2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]},{"make":"GMC","model":"SIERRA DENALI","year_from":2009,"year_to":2013,"match":"base","vehicle_ids":["2009_gmc_sierra","2010_gmc_sierra","2011_gmc_sierra","2012_gmc_sierra","2013_gmc_sierra"]}],"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":[]}