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<blockquote data-quote="Fouroaks" data-source="post: 27384" data-attributes="member: 10558">I have a 2019 equinox 2.0T premier with 103k miles. I have noticed in the last 4K miles or so that I have a slight shudder when I am idling in park.There is a shudder that you can feel like there is a not perfect idle but it is not to the point where if feels like the engine will stall. I have always changed the oil every 5k miles with synthetic oil, and changed spark plugs at 60k.I thought it could be time for plugs to be done again so I changed them, along with the boots. I noticed a slight improvement to fuel economy which has been bad as well (24mpg now on 91/93 premium).I still have the slight shudder even with new plugs. I thought it could be the MAP sensor- but I cannot find the thing on the engine.Any ideas on what the shudder could be from? I also feel like the auto start/stop feature is more noticeable (could be anxiety though).Also any info or pictures where the map sensor is located?No check engine light.</blockquote>

[QUOTE="Fouroaks, post: 27384, member: 10558"] I have a 2019 equinox 2.0T premier with 103k miles. I have noticed in the last 4K miles or so that I have a slight shudder when I am idling in park. There is a shudder that you can feel like there is a not perfect idle but it is not to the point where if feels like the engine will stall. I have always changed the oil every 5k miles with synthetic oil, and changed spark plugs at 60k. I thought it could be time for plugs to be done again so I changed them, along with the boots. I noticed a slight improvement to fuel economy which has been bad as well (24mpg now on 91/93 premium). I still have the slight shudder even with new plugs. I thought it could be the MAP sensor- but I cannot find the thing on the engine. Any ideas on what the shudder could be from? I also feel like the auto start/stop feature is more noticeable (could be anxiety though). Also any info or pictures where the map sensor is located? No check engine light. [/QUOTE]

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