Stall or hesitation on GM vehicles
Service bulletin PIP5529 addresses stall or hesitation on GM vehicles
GM has issued a service bulletin PIP5529 to address a stall or hesitation on GM vehicles listed below and these possible trouble codes
P0068 Throttle Body/Intake Air Flow
P0101 Mass Air Flow (MAF) Sensor
P0106 Manifold Absolute Pressure (MAP) Sensor
P0131 HO2S
P0137 HO2S 2
P0171 Fuel Trim System
P0324 Knock Sensor/Knock Sensor Processor
P0326 Knock Sensor/Knock Sensor Processor
P0331 Knock Sensor/Knock Sensor Processor
P0506 Idle Speed Low/High
P2097 Post Catalyst Fuel Trim System
Vehicles Affected by PIP5529
2016-2017 Buick Envision LCV LTG Engines, All VINS
2014-2017 Buick Regal LTG Engines, All VINS l
2013-2017 Cadillac ATS LTG LCV Engines, All VINS
2016-2017 Cadillac CT6 LTG Engines, All VINS
2014-2017 Cadillac CTS LTG Engines, All VINS
2016-2017 Chevrolet Camaro LTG Engines, All VINS
2015-2017 Chevrolet Colorado LCV Engines, All VINS
2013-2017 Chevrolet Malibu LCV LKW LTG Engines, All VINS
2014-2017 Chevrolet Impala LCV LKW Engines, All VINS
2017 GMC Acadia LTG Engines, All VINS
2015-2017 GMC Canyon LCV Engines, All VINS
Service bulletin PIP5529 fix for stall or hesitation on GM vehicles
GM has discovered that loose intake manifold bolts may the cause of a stall or hesitation in the above mentioned GM vehicles. First check for trouble codes, you may find any of the above listed trouble codes because they all relate to intake air. If you can’t find a problem associated with the trouble codes, inspect the torque on the intake manifold bolts. Torque to spec if they are loose.
Posted on by Rick Muscoplat