- 2002 Toyota Echo
- Auto transmission
- Approximately 123k mi.
- No car mods.
- Elderly owner.
Echo is kept in a garage in Florida. It is not driven hard.
Sound occurs every time Echo is driven (highway & city trips, long & short) then parked.
Immediately after the Echo is parked, I hear a rhythmic croaking/burping sound repeating about every 2 seconds, when standing next to the door to Echo's fuel tank.
Sound eventually stops after 5 or so minutes.
What needs replacing/repairing?
Happy to answer any questions you may have.
Thank you for any help you may provide!
That's your EVAP system trying to vent. You could have an obstruction somewhere, or bad purge valve, or worn out gas cap. Find a mechanic who can use a smoke machine and bidirectional diagnostic scanner to diagnose the issue.
Thank you for your detailed answer!
1) Does this sound like a $400 dollar repair or more?
2) If not addressed immediately, would this cause severe damage?
I don't think it can cause immediate damage, no. If left for a very long time it might put more stress on the fuel pump. The more important thing for you, is that a malfunctioning EVAP system can cause your engine to stall out at very inconvenient times.
The cost of the repair will depend on the exact diagnosis, and which parts (if any) need replacing.
Thank you for your response. 👍Â