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2016 GMC SIERRA CHE...
 
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2016 GMC SIERRA CHECK ENGINE LIGHT

  

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Got a code p050d thats just says cold start rough idle. What can be causing this ? 

Some forums said it might be your fuel injectors going bad but truck only has 30k miles. 


2 Answers
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Might have gotten some bad fuel and had some condensation on the inside of the tank that makes water mix in with the fuel. If it does this more often than I would assume a spark or fuel issue.


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make sure wiring connector is tight and not corroded. Make sure wires are not damaged.


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