Persistent Issue with Gas Pump Clicking and Stopping During Refueling

QuestionsCategory: Ask An ExpertPersistent Issue with Gas Pump Clicking and Stopping During Refueling
Ava Harris asked 7 months ago
Hello everyone! I'm encountering a frustrating issue with my 2003 WRX. Every time I try to pump gas, the pump keeps clicking and stopping, making the refueling process painfully slow. I did some research and learned there might be a specific part in the engine that could be clogged and needs replacing. Given my experience in basic car maintenance (like brake replacement, serpentine belt installation, and cold air intake fitting), I'm considering tackling this issue myself. Do you know which part might be causing this problem? Also, is it something I can handle on my own?
1 Answers
Zack Norman Staff answered 7 months ago
Hi there, Ava! It sounds like you're dealing with a common (yet, nevertheless, problematic) issue related to the car's EVAP (Evaporative Emission Control) system. Here's what you need to know:
  1. Potential Causes:
    • Clogged EVAP Canister: This canister captures and stores fuel vapors from the fuel tank. If it's clogged, it may prevent the tank from venting properly, causing the pump to click off.
    • Faulty Purge Valve Solenoid: This valve controls the flow of vapors from the canister to the engine. A malfunction here can cause similar symptoms.
    • Blocked Fuel Tank Vent Hose: This hose helps in releasing air from the tank during refueling. A blockage here can cause early pump shutoff.
  2. DIY Feasibility: Given your experience, you should be able to handle this job. The EVAP canister and purge valve are usually accessible and don't require specialized tools. However, always refer to your car's manual for specific instructions.
  3. Preventative Measures: Avoid topping off your tank after the pump clicks off the first time. Overfilling can lead to liquid fuel entering the canister, which is designed only for vapors.
  4. Alternative Solutions:
    • If the issue persists, consider the environment. Dusty conditions can clog the canister more frequently.
    • Some owners of similar models have found success by holding the nozzle sideways while refueling. It might be a temporary fix but worth a try.
  5. Other Considerations: Make sure this issue is consistent across different gas stations. Sometimes, the problem could be with the pump itself rather than your vehicle.
If you decide to replace the EVAP canister or any other part, ensure you get the correct component for your WRX model. Best of luck with the repair, and feel free to reach out if you have more questions! Zack - Motor Verso Mechanics Team