Question

2012 Chevrolet Impala LS 3.6L with P0496 engine code, where is the purge valve ?

Answer 1

Hi there,

The code is actually for purge flow when the engine isn't running. Basically the purge control solenoid is stuck open. So, when you fill the car with gas, the fuel vapors are going into the intake manifold. When this happens you are basically flooding the engine. This is why the car is hard to start. You will likely need to replace the purge control solenoid to resolve the issue.

Answer 2

The P0496 code indicates a problem with the Evaporative Emission (EVAP) System. The EVAP system is designed to prevent fuel vapors in the gas tank from escaping into the atmosphere by channeling them to the engine for combustion. This code suggests that there is still a flow of emission gases even when the system is supposed to be sealed. The cost depends on the problem. If it is just the Canister Purge Valve (Solenoid), parts and labor cost around $150. The most likely causes for this code include:

• Faulty EVAP Canister Vent Valve
• Faulty EVAP Canister Purge Valve
• Clogged EVAP Canister
• Faulty EVAP Pressure Sensor

For more information about the code, visit the following link:

P0496 Chevrolet Code - Evaporative Emission System Flow During Non-Purge
Read more: https://www.autocodes.com/p0496_chevrolet.html