DIY: Cleaning the Purge Valve

[gregs210]

Trouble/diagnostic code P0455? Changed the gas cap and it's still there? Try cleaning the purge valve...and stop topping-off your gas tank.

Thanks to ohlord for providing the expertise and location pics.

Take care and enjoy the ride,
Greg

[texholdem]

Hi Greg,

I cleaned the purge valve as shown in the DIY. But I did not hear the valve tick using the screw driver "stethoscope". Does it mean the valve is kaput? Thanks!

[ohlord]

comes on at cold start up usually like in the morning.Or you can pull off the back tube and you will hear it tap tap tappin
ohlord
did you have the code or just cleaning it and checking it to see how things work?

[texholdem]

Hi ohlord,

sorry for mistaking Greg for the DIY-provider instead of you
I do not have the code, I cleaned it since die DIY stated that one should hear the clicking, but after cleaning it still remains mute. Perhaps the engine was still hot. Will try it next morning at cold start.

Thanks!

[jlomon]

If you hold it in your hand you should feel it pulsing. No need to use a screwdriver or anything. It feels like a fast heartbeat.

[texholdem]

Thanks, will try it that way too.

[ohlord]

that the line we all gave our first girlfriend?
ohlord

[texholdem]

I think my purge switchover valve is dead. I tried this morning with a cold engine, heard nothing (stethoscope methode, pulling out the back hose) and felt no pulse (laying hand methode).

No CEL, wondering if there is a code thrown without CEL.

[texholdem]

Just connected a OBD II scanner and there is no codes. Apparently the valve does not throw any code letting me further in doubt whether it should tick or not?

[ohlord]

are no excessive fumes or vapor pressure in the tank or lines the purge may not come on.The obd2 system will close some of the valves in the evap system and run the purge pump to monitor system function.If it doesn't find anything out of normal it wont throw a code.So it must be working at the proper time or you would have a code