Bulletins


BulletinBulletin dateReplacement BulletinItem no.SummaryAdded
ENGINE AND ENGINE COOLING - ENGINE
PIP-469509/01/200910032435Gm: loss of power hesitates on acceleration. 4.3, 4.8, 5.3, 5.7 and 6.0 engines coupled with the 4l60e or 4l65e may experience a condition of hesitates, misses or loss of power under acceleration. the vehicle may operate as if it is in r03/24/2010
04060404206/01/200410012162Revised diagnostic system check - engine controls. *tt02/16/2005
0026601/01/200400266A10007596Loss of power, hesitates on acceleration on 4.8, 5.3 and 6.0 engines coupled with the 4l60e or 4l65e transmission. *tt07/02/2004
01119A01/01/200401119B10007576Roll-out for the gen iii small block engines with iridium spark plugs. also includes 2003/2004 m/l vans. *tt07/01/2004
03060406010/01/200310004733Information on new spark plugs and gapping. various models including pontiac gto 2004. *tt01/02/2004

Consumer Complaints


Fail datemilesoccurencesPurchase date
ENGINE AND ENGINE COOLING - ENGINE
03/01/20025
 While driving, their was a noise from under the hood. consumer took vehcile to the dealership an d they indicated that the serpentine belt had came apart. prior to this incident,at time of purchasing the vehicle the dealership noticed the serpentine belt had came apart, when inspectng the vehicle. consumer had belt replaced 5 times, problem still accurs. please provide more details. mr
ENGINE AND ENGINE COOLING - ENGINE - GASOLINE
09/26/200122000102/09/2001
 My 2001 yukon denali has a knocking engine noise everytime you start the the engine.*ak
ENGINE AND ENGINE COOLING - EXHAUST SYSTEM - EMISSION CONTROL - CATALYTIC CONVERTOR
12/01/200789000112/23/2003
 2001 yukon denali- abs fails at slow speeds 2001 yukon denali- catalytic converter failure. *tr