TSB Document:

• SB-10097551-1020.pdf

Affected Component: FUEL/PROPULSION SYSTEM (PWS)

Summary

"SITUATION: ON VEHICLES FITTED WITH THE 4.2L NATURALLY ASPIRATED ENGINE ONLY, THE ENGINE MAY EXPERIENCE A ROUGH START OR STALL FOLLOWING A HOT SOAK OF 15-20 MINUTES. CAUSE: THIS MAY BE CAUSED BY THE FUELING CALIBRATION NOT BEING ROBUST FOR WINTER BLEND 10% ETHANOL FUEL."

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