Hello all just got a 99 F150 with 47000 miles on the 4.2 V6...it was garage kept and belonged to an old man that passed away...it was never drivin hard...right after i got it the CEL came on and i went to Autozone and it was the EGR valve...put a new one and drove it for 1 day now the light has come on again and its showing these codes....does it need cleaning or is a sensor bad..

It says on the printout they gave me that probable cause is

Blocked passage to Egr
failed egr valve
egr solenoid faulty
Failed egr pressure sensor where applicable
failed EGR position sensor where applicable

any help would be greatly welcomed...thanks

 

Usually a faulty DPFE.

 

Check out this page, it may help you out

http://www.engine-light-help.com/egr-valve.html

 

Thanks guys im going to try cleaning the ports and reset the code...see what happens then i will start trying some of the suggested stuff here....

 

dont use carb cleaner it will damage the diaphram in the valve. a wire brush and a pointy picker will do the job. Take the valve off, and pull a vacuum on it with your mouth to get the valve and seat exposed, so you can gently scrape off the carbon. When I do it i put my finger in my mouth while sucking on the vacuum line to actuate the valve then put my finger over the vacuum port to keep the valve open. btw you could simply have a clogged orifice from the exhaust line to the egr valve. That sounds more likely to me b/c an old man was driving it. Most likely a lot of idle time, so that carbon doesnt get blown out, and just accumulates. that you can use carb cleaner on. Its just a bastard to get it off and on.

 

Ok what should i try and clean first...as i stated the EGR is new...not much of a mechanic...but its affecting the performance of the truck...where are the ports that i need to clean...thanks a million

 

Ok changed the DPFE ..lol...cleaned the ports i could to....going to see Merle Haggard tonite ..reset the code...its an hour round trip so will see what happens...the vacuum lines were clogged some and whe i tapped on the DPFE box white crap came crumbling out...fingers crossed...if not i will clean the throttle body and EGR ports next...thanks for all the help...

 

Tell Merle TN said hey

 

Man the mix was bad..Merle's vocals were muddy... so me and the GF came back... so far so good..except for my GFs driving...lol...she hadn't drove a stick in 10 yrs...

 

Rofl I could go somewhere with that response but ill be nice