Posts Tagged: service bulletin #PI0850A

Service bulletin #PI0850A P0171, rough idle

#PI0850A P0171, rough idle, whistle Noise Diagnose and fix P0171, rough idle, whistle noise GM has issued service bulletin #PI0850A to address trouble code P0171, a rough idle and a whistle noise coming from the engine on the vehicles listed below 2011-2012 Chevrolet Cruze Equipped with 1.4L Engine (RPO LUJ) P0171 symptoms You may hear a whistle noise from the engine compartment and experience a rough idle, along with a check engine light and trouble code P0171. GM has determined the cause may be a vacuum leak in the positive … Read More