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May 9, 2019 Service bulletin

Service Update

Cadillac technical service bulletin N182205890 for 2019 Cadillac XT4.

Bulletin number
N182205890
Component
Engine and engine cooling: exhaust system: emission control
Summary
Service Update. Certain vehicles may have a condition where some capacitors used on the purge pump printed circuit board (PCB), may have unknown performance. These suspect capacitors are used in multiple locations on the PCB. Depending on which capacitors fail, the purge pump may not operate as intended and a malfunction indicator lamp (MIL) may illuminate. In addition, there may be pump bearing issues which could also result in stored DTCs and MIL illumination. Dealers are to replace the evaporative emission purge pump.

Owners of these vehicles have filed 12 complaints in the engine category.

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