I just put a brand new EGR valve on my 2006 Dodge Ram 5.7 Hemi and the check engine light came on the code reading EGR valve what could be the problem

SOURCE: engine light

just off to the left and below the alternator held on with 2 small bolts

SOURCE: 2006 dodge ram 4.7 engine light on

it can be reached from the top of the engine. its just a real pain to do. two 10mm hold it to the drivers side head.

SOURCE: P0406 Code

It is for the Exhaust Gas Recirculation (EGR) valve.

SOURCE: 2005 Ram 1500 4wd HEMI PO406 - EGR

Hey greenlee99, your best bet would be to grab one these manuals so that you have pictures and diagrams along with step by step instructions. It will tell you what tools and parts you need. Can't go wrong with having it.

SOURCE: 2006 dodge ram hemi 5.7 liter trouble codes 1404 a...

The check engine light is on to tell you that the ECU has detected a fault. The faults are stored as codes. The codes both have to do with a deficiency of exhaust gas going through the EGR valve. You will need to find out if the problem has to do with the valve, a leak, or the circuit.