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'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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Discussion Starter #1
Good grief.....this little bastard goes into the bottom of the gas tank. On the EPC, I traced it back to the activated charcoal filter. When the engine is off...this thing hums like a little electric motor (sound-wise) and is obviously venting. Not really too annoying, but took awhile to track it down by hearing it (because about the time I chase after it, it quits). This time, I just happened to be under there when it went off.:rolleyes:

I guess my question is; is this something that needs replacing or does it indicate a clogged, activated charcoal filter.....or, does that system have any performance value other than passing emission testing?

Kevin
 
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