so my truck stalls. usually in the mornings at a stop sign in nuetral. If i start my truck and let it idle then rev up the engine it stalls. my ce light is on for egr insufficient flow so not sure if that could be correlated. any help with this?

 

THe main purpose of the EGR system is for the antipollution test.
Is this the only code you have ?

 

i had the code system too lean but it recently shut off

 

the egr system will make it run like crap if it isn't working correctly. had this problem on a truck I used to have. check your vacuum lines first.

 

ok. I am not sure how to go about that. I did notice that the line attached to the top of the EGR does not really have any significant suction when the truck is running. do you thin that could be a problem? I recently pulled the throttle body off and the egr passage hole (lack of better terms) was gunked up like hell. Cleaned it out and now i am getting a code of egr excess flow and dpfe bad. sigh.....it continues...

 

it would be best if we knew what engine you have. I'm assuming it's a 3.0 and what codes did you come up with? it is common for the egr to be gunked up on the intake side like yours was, but I would also check the exhaust tube for blockage. if you can, just disconnect it and blow into it, you will be able to tell. this link may help you check your egr and dpfe systems Part 1 -How to Test the Ford EGR Valve and DPFE Sensor. let us know if you get it fixed.

 

i have a 99 2.5l ranger. originally had p0401 and p0701 (system too lean bank 1). no longer have p0701 but now have p0402 and p1401 for the dpfe. thanks for the info

 

I have replaced the dpfe and now only have the code p1401 for a bad dpfe. I noticed that there is considerable moisture in the hoses conected to the dpfe, dripping out actually. Not sure if this ifsfrying the dpfe or what? still stalls badly