What problems can arise if a Honda City fuel cap is not properly tightened after refueling?

Home > Gari Forums > Honda Forums > Honda City Forums > Honda City Cracked o r Loose Fuel Cap Forums

What problems can arise if a Honda City fuel cap is not properly tightened after refueling?

Many drivers unknowingly leave the fuel cap slightly loose after refueling, which can lead to warning lights and fuel vapor leaks. What is the correct method to tighten a Honda City fuel cap, and how can owners ensure a proper seal?

Sirat Ul Jinan asked on 26 Feb 2025 14:59:21 pm

1 Answer

28 views |

Car Mechanic Expert - on 26 Feb 2025 15:07:45 pm

If the fuel cap is not properly tightened, several issues can arise:

Check Engine Light: A loose fuel cap can trigger the check engine light due to the EVAP system detecting a leak.
Fuel Vapor Leaks: Without a proper seal, gasoline vapors can escape from the tank, leading to the strong odor of gasoline and potential health and safety risks.
Reduced Fuel Efficiency: A loose fuel cap can result in fuel evaporation, decreasing overall fuel economy.

How to Ensure Proper Tightening:

After refueling, tighten the fuel cap until you hear it click. This ensures a proper seal.
Make sure the cap is not cross-threaded o r loose in any way.