Question

How does the test for an engine code P0455, occur on a Ford Ranger?

Answer 1

HI there,

This code indicates a large leak in the evap system. This is usually the result of a bad vent control valve on the charcoal canister or a loose fuel cap. If this isn't the issue, then usually a smoke test has to be done to locate the leak and then resolve it.

Answer 2

P0455 FORD - Evaporative Emission Control System Leak Detected Gross Leak

Read more: https://www.autocodes.com/p0455_ford.html