Evap Code P0455?

2005 CHEVROLET IMPALA
167,736 MILES • AUTOMATIC
Avatar
FKICR
  • MEMBER
  • 2 POSTS
Evap Code P0455?
Apr 3, 2025 at 4:34 AM
Advertisement
Avatar
CARADIODOC
  • ✓ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
P0455 - Evaporative Emission Control System Leak Detected (gross leak)
Apr 3, 2025 at 11:05 AM
Avatar
STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Yep, I have seen the vacuum line from the throttle body to the purge solenoid cause this issue. Please go over this video which shows the job being done on a similar car.

https://www.youtube.com/watch?v=iH92vcUWJzs

Let us know what you find.
Apr 4, 2025 at 9:41 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.