Well i just went and had the codes pulled on my psd and there was nothing. system passed. but i keep having this lingering thought that my ebpv isnt working. i had my first high idle of the season this year but i never hear it working. how can i tell if its working? other than the obvious sound from the tailpipe which i never hear.
i went under the hood a few mins ago and checked the linkage and i had a bit of resistance the i tried to move it. but it would move a bit. i am at a loss. got any ideas?

 

Bluemoose,

I know you asked for kwik but let me throw in my 2 cents if possible. First thing in the am start the truck with the hood open(better to have someone else start it so you can stand in front of the truck and watch) Take a flash light and point it at the bottom of the turbo exhaust housing. You should be able to see the actuator arm for the EBPV there watch to see if it moves and if you can hear a tone change in the exhaust. If not then you need to look in front of the pedistal at the base to see if the wiring harness is plugged in there. Last thing you made need to remove the down pipe clamp and stick your fingers in there and actually feel the EBPV to see if it is open or closed.

Fire Rooster

 

the last time i had the downpipe off i noticed that it was open. you must have been reading my mind. do you know of any pics of the wiring harness that i could look at just for a ref. thanks for the input

 

Look right at the base of the turbo towards the bottom of the pedistal there is a white two prong female connector. The harness is not plugged in in the picture, it is actually dropped down in the valley of the motor. But this is what you should be looking for.
https://www.ford-trucks.com/user_gal...=52431&width=0

 

ok i will look. do you think i could get a pic of the white connector?

 

never mind i think i see it

 

right in the center of the pedistal in the picture. If youlook in my gallery there is another picture of it. Same angle but the turbo is removed as well.

Fire Rootser

 

According to the Ford description of EBPV operation, the PCM should cycle the EBPV once @ startup everytime hot or cold. If its cold the PCM closes the EBPV and a slight wooshing is heard.

 

Bluemoose,

You could just delete the whole thing like I have and open her up a little more.

 

You don't have any sort of EBPV brake mod wired in do you?

 

nope nothing at all. bone stock except the 4 inch exhaust i am stumped

 

na i couldnt do that, cold winters in deer season on the top of big walker mtn. very cold. colder than a witches titty in a brass bra

 

That is ok I am here in Phx were it is hotter then two squirrels in a wool sock

No I understand about not deleting the EbPV. Still you could plug it in and let it warm up that way. Because I am assuming if you are out camping/hunting in that cold of weather it is in a TT or 5er.

Fire Rooster

 

It helps to remove the HPOP cover, not really necessary but it's nice to have it out of the way.
Engine needs to be cold for this test.

To verify that the EBPV is being commanded to turn on, go unplug the electrical plug from the solinoid valve. Get a standard twelve volt incandescent type test light. A 12v multimeter or LED type light will not work in this test. Go start the engine and test for power at the plug for the solinoid. One will have nothing, it's the ground. The other one will pulse the test light dimly. It will blink at you about 3 or 4 times per second. Now just wait for the fast idle to come up. At that time when the EBPV valve should be closing the blinking light will simply get brighter. It won't change it's tempo or anything like that. It will simply keep blinking at you but at near full intensity for the test light. Have a helper touch the brake pedal so that the engine will return to a normal idle speed. The blinking light will also immediatly go back to the dim blinking. If you want to verify it again, simply wait for the fast idle to pick up again and you will see the blinking light get bright again.
If the light is getting bright per these perameters, then you can assume the problem lies in the solinloid valve itself because it's receiving the command to turn on by the ECU. If you are getting no light or no increase in intensity than you can assume there is a problem upstream of the plug. But I'll bet there is a problem with the EBPV itself. Very rarely does a computer component fail anymore, it's almost always the sensors and the solinoids that it monitors and commands.

 

ok i will have to try that. thanks for the help guys