No Start after Refueling and Popping Noise from Trunk on Volkswagen Eos

Submitted by casey40510 · May 29, 2025
Published by RepairPal

Problem overview

Popping sounds from the rear of the vehicle may be heard moments after starting the engine, or when slowing to a stop. This noise is from the leak detection pump filling the fuel tank with air, and releasing to retest the system when it finds a fault. The sequence of faults identifying this issue are as follows:

  • Succession of loud pops from rear of vehicle
  • Pops go away, and fuel economy decreases
  • Check engine light illuminates
  • OBD trouble code P2404 and/or P0441is stored
  • Engine will not start after refueling (must crank for over 30 seconds)
  • Vibration when slowing to a stop

The cause is a valve which is mounted on the front of the intake manifold, commonly called the N80 valve, or EVAP system purge valve. The valve is designed to open under specific circumstances, but a worn valve will remain open at all times, preventing the pressurization of the fuel tank.

Correction of the issue is to replace the N80 valve with the latest revision.

9 people reported this problem
0 comments
Schedule Repair

Search for another problem

RepairPal Car Genius

Ask our experts about your Volkswagen.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts