2008 Acadia Cold Start Problem

[bandrewsv8mgb]

Did you try replacing the engine coolant temperature sensor?

[NWSanta]

@bandrewsv8mgb -- It was actually a fuel related issue. I changed the grade of fuel or at least mix it up between 87,89, and 91 and that seems to have calmed it down.

[bandrewsv8mgb]

Thanks!