GMC TSB #PIP5540A
2009 GMC Yukon
Affected Component: ENGINE (PWS)
- Summary
- This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.