05 ram with hemi code p0406

It is probably the EGR valve itself. I would remove the valve and check the lines coming off of it to make sure it is not clogged. If that checks out ok then I would replace the EGR Valve and then clear the code with a scan tool.

Check the voltage at the EGR solenoid and ground. Remove the EGR valve and clean the carbon buildup out of it or replace it altogether. A new EGR valve will run you about $60 from the dealer.

The EGR on my 05 Hemi Durango is located on the passenger side front of the engine near the head.

I would bet your Ram is the same or close to it.

Dodge/Chrysler EGR valves are known to be unreliable. The one on my wife's 05 Grand Caravan died in the 40k miles range.

They are not really serviceable. The usual fix is replacement. Part will be between $50 and $150 depending on where you get it. Installation most of the time is 2-4 bolts and the harness.

Don

You need the DRB3 or better to do that. Only really good shops or the dealer(if there's any left) can do this.

Replace the EGR valve.

P0406 is the EGR valve. It sits on the right front of the engine. Just remove the two bolts on the tube and the two bolts on the valve itself and there you go. Reset the lamp with a scan tool or by disconnecting the battery for a couple minutes and retest.

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

this is a egr problem lack off flow

they needed to replace my IAC module. (Idle Air Control)
covered under warranty cost me 50.00 deductible Good luck