Question about Cars & Trucks
Egr valve is clogged with carbon in my Audi a4 1.9 tdi trip tropic 2001
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Posted on Jan 02, 2017
You have to the EGR valve (sometimes the Intake manifold to EGR Vlalve line also). After you remove it take a drill bit the about 20 % smaller than the actual hole of the outlet side and rotate the drill bit with your hand to dig out the carbon. Aditionally the line coming from the intake manifold to the EGR valve will clog near the connection to the EGR valve. I use either a single piece of copper wire or the wire that you would use to tie ribar together to clean the line. When your done cleaning take a piece of vacuum line and connect it to the diaphram side and **** on it... then plug the line well with your thumb. Grasp the valve and blow thru it... Air should blow thru it freely. Remove your thumb from the vacuum line and try blowing again.. No air should pass thru the valve.
Then reinstall the valve and start the vehicle with the vacuum line disconnected (but blocked off) Use another piece of vacuum line connected to the diaphram again and **** on the line.. The vehicle should die or run really bad. If it does this then you cleaned it correctly.
Posted on Jan 20, 2010
The egr valve is located at the end of a hose that plugs into youe valve cover. It is pushed right into a rubber grommet that is located in one of the valve covers. I hope this helps. don.t forget to rate my nswer, thanks
Posted on Feb 27, 2009
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