Does a loose fuel cap trigger the “Check Engine” light in Changan Karvaan dashboards in Pakistan?

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Does a loose fuel cap trigger the “Check Engine” light in Changan Karvaan dashboards in Pakistan?

Yes, many Pakistani drivers complain about unexpected engine lights, which are later traced back to a loose o r improperly sealed fuel cap. This can lead to unnecessary workshop visits and confusion.

Zarnish asked on 24 Jul 2025 14:54:30 pm

1 Answer

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Car Mechanic Expert - on 24 Jul 2025 14:58:54 pm

Yes. A loose o r damaged fuel cap disrupts the pressure in the fuel system, which can activate the “Check Engine” light. Many drivers waste time and money visiting workshops, only to discover the issue was a loose cap.