purge valve,If the code did not clear when you got a new gas cap,or flipped the gasket.Clean the purge valve,it is a little pump that sucks a vacuum in the tank and gas lines systems,so it sucks fumes into the engine so they don't get into the atmosphere.
it is located .....
pop the hood,look in the drivers side of the engine compartment,in front of the area where the brake master is you will see a little black can looking object.
Labeled ---MOT---
with the engine running you should hear it clicking like a little drummer.to check it's operation,just start the engine and put a screw driver tip on it and listen with your ear pressed on the handle-------cheap stethoscope------
you should hear it doing it's job.Sometimes they get gummed up,so lift it off the
W shaped mount and gently pull off both enter and exit hoses,get some maf cleaner(CRC brand) and put the tube that comes with the crc on the sprayer.Insert the tube into the hose and spray for a few seconds,repeat to the other hose and the the valve itself,let air out for 10 minutes and reinstall both hoses and put it back onto the W shaped mount.
Start engine and enjoy.
ohlord
Vehicle: 2001 SLK 320(93K Miles), 2002 E320 Special Edition(112K Miles)
Location: South Bay Area,L.A., CA
Posts: 975
Ohlord,
Any chance you can put this last post in a separate article and get the moderator to add it to the stickies? This is one of those fixes that is so simple to do, but which one can never find again if you need it. And I'm sure it will be needed more as the cars get older.
-----------GREG--------,a request for a sticky on the purge valve cleaning.............
the CRC maf cleaner ,really dissolves the any kind of gunk and leaves no residue.
Just be sure to air it out,no reason to allow flammable solvent into a hot engine.
Let it sit and evaporate just like when you clean a mass air sensor.
ohlord
purge valve,If the code did not clear when you got a new gas cap,or flipped the gasket.Clean the purge valve,it is a little pump that sucks a vacuum in the tank and gas lines systems,so it sucks fumes into the engine so they don't get into the atmosphere.
it is located .....
pop the hood,look in the drivers side of the engine compartment,in front of the area where the brake master is you will see a little black can looking object.
Labeled ---MOT---
with the engine running you should hear it clicking like a little drummer.to check it's operation,just start the engine and put a screw driver tip on it and listen with your ear pressed on the handle-------cheap stethoscope------
you should hear it doing it's job.Sometimes they get gummed up,so lift it off the
W shaped mount and gently pull off both enter and exit hoses,get some maf cleaner(CRC brand) and put the tube that comes with the crc on the sprayer.Insert the tube into the hose and spray for a few seconds,repeat to the other hose and the the valve itself,let air out for 10 minutes and reinstall both hoses and put it back onto the W shaped mount.
Start engine and enjoy.
ohlord
some pics to help you
Thank you. You are a life saver. I will check it out later. I've just flipped the gas cap rubber yesterday. I haven't driven the car because I just took out the air filters and cleaned it up. I would assume the CRC maf cleaner would be sold at Autozone or something?
And in case the gas cap rubber and the purge valve not working, should I tackle the crank position sensor next? I couldn't seem to find where the CPS located (was told to look at the rear bank driver side but found nothing after few attempts). Thanks again.
And I'm sure it will be needed more as the cars get older.
Linear Mode
