1999 Chevy Silverado service code

1999 CHEVROLET SILVERADO
180,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
GCV6364
  • MEMBER
  • 1 POST
shows P0446 What is it? what does it do? how do I fix it?
Jul 3, 2008 at 7:35 AM
Advertisement
Avatar
DENNYP
  • ✓Experienced Mechanic
  • 1,824 POSTS
EVAP vent performance. Most common cause is a bad evap vent valve near the fuel tank.
Jul 9, 2008 at 2:13 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
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 new question

Frequently Asked Problems for This Vehicle