My brother has a 2003 buick century 3.1 he is getting code p0446, he has changed the evap canister valve, charcoal canister vent valve, pcv valve and the rubber on the gas cap and the code will not go away. Do you have any idea of what else it could be, he is saying there is no gas leak.

My brother has a 2003 buick century 3.1 he is getting code p0446, he has changed the evap canister valve, charcoal canister vent valve, pcv valve and the rubber on the gas cap and the code will not go away. Do you have any idea of what else it could be, he is saying there is no gas leak. 3 Answers

On a 2003 Buick Century, I am not getting enough voltage/amps to pull in the vent valve on the evap system. I'm suspeciting a bad relay. Where is it? 3 Answers

I see voltage at the vent valve solenoid but it is not enough to pull in the solenoid to close the valve when the ignition is on. It closes fine if wired to the battery. I'm getting the P0446 code. Is...

If I can`t see the pcv on top of the valve cover of my 1981 buick century v-6, where is it? 6 Answers

I can`t see the pcv on top of valve cover, where is it located?

where is the refill valve for air conditioning in a 2005 Buick Century? 2 Answers

where is the refill valve for air conditioning in a 2005 Buick Century?

Where is the egr valve located at on my 1990 buick century custom 3.3l 2 Answers

I cant find any diagrams for the location of the egr valve and the haynes manual isnt very helpful. Where is it located? Does anyone jnow?