Diagnostic Aids
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
- The charged air cooler is connected to the turbocharger and to the throttle body by flexible duct work that requires the use of special high torque fastening clamps. These clamps cannot be substituted. In order to prevent any type of air leak when servicing the duct work, the tightening specifications and proper positioning of the clamps is critical, and must be strictly adhered to.
- Insufficient preload between the wastegate lever and actuator rod may allow the wastegate to open slightly when commanded closed, and result in P0299 being set.
- Oil ingestion or contamination of the wastegate solenoid valve may cause DTC P0299 to set.
- Charge air cooler icing may cause DTC P0299 to set.