i talked to my dealer this morning and they told me the P0404/0505 error COULD be the EGR valve or could be something else. i have 100 service deductible so im going to go in and see what they will do for me considering my truck just went over 39k

 

EGR valve changed out (40k on Beast now) gone from 14.4mpg to 15.1 the last couple days mostly city and a couple short hops on the highway.[sm=gears.gif] cost me 100 out the door at the STEALERship (did not have time to do it myself)

also it cleared the p0404 and 0405 codes i was getting!!

 

Advance Auto Partsis showing they have them instock for $62.99 for an 04 5.7L

 

Check this out.

http://catalog.autopartsgiant.com/Re...autopartsgiant

 

If the dealer will order the newest part number(53032509AM) he will find that the EGR valve is not on back order. It should cost about $50.00. If he can't get you one, call me and I will ship you one UPS.