Originally Posted by
kevlarr33
Im having the same EGR problems and wanted to know how to clean out the valves and manifold? I replaced the EGR a few months back and Check Engine light came back P0401Innsufficent Flow??? How To take Apart and what to clean it with ?? Thanks gUYS!!!
Go to the dealer and get the EGR gasket kit ... then look at your manifold, there you will find the the passage the exhaust takes into your intake ... figure out the hardware and take it apart. BE DANG CAREFUL, not to let the carbon chunnks to go into the cylinders (assuming you take the injectors out like most apps) ... I used a scribe and a drill bit (minus the drill) to manually clean out the port holes, and sucked the carbon away with a shop vac.