P0440 Chevrolet - SUBURBAN

Question

I replaced the gas cap, checked for leaks and still have the code. What could be the problem? Thanks.

Answer 1

Hi there,

Here is a list of possible causes for an EVAP code.

P0440 CHEVROLET - Evaporative Emission System

Read more: https://www.autocodes.com/p0440_chevrolet.html