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Discussion Starter #1
I was surprised that my check engine light came on as I couldn't discern any issues. When I brought my XC40 to the dealer, they took a couple of days (and Volvo's help) to locate a leak in the fuel system after a vacuum pump test. All is good now, but I had thought this might have been related to my less-than-stellar fuel economy, which has been nowhere near what was expecting when I purchased the vehicle. I am not a mechanic, so I apologize if I am not specific enough regarding the issue, and how it was fixed, but I'm glad the dealer furnished a rental car for the two days it took them to repair my vehicle.
 

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Glad that your dealer was able to locate the problem and have it repaired rather quickly. Any idea as to how the leak developed? What sort of fuel economy were you getting prior? Be sure to let us know if you see a noticeable improvement.
 

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Discussion Starter #3
I'm not certain but I suspect it was a manufacturing defect. I recall that within the first 500 miles the engine light came on intermittently, so I didn't think there was any cause for concern. I have typically been getting between 18-23 MPG, and that is not changed since the repair.
 

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It sounds like this may have been a off issue as we haven't seen this reported by anyone else. Could very well have been that something wasn't secured or set right from factory. You should think about tracking your economy with Fuelly. Will be a good way to monitor what you are getting in comparison to other owners.
 
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