Hi, I replacedy ebpv solenoid and tube. Cleaned the ports with a pipe brush. It's 25 degrees, took it for a test drive after install. Still getting that. Rushing /leaking air sound at cruising speed 1500 rpms or so. Sound go's away when I step on it comes back when I return to normal throttle. Please help if you know what to do?

 

Do you have stock exhaust?

 

If it is 25* ambient temp and your engine oil temperature (EOT) is cold, then this sounds like a perfectly normal performing EBPV sensor and EBPV. I cannot remember the exact parameters but the one on the truck in my signature behaves exactly like yours up to about 120* EOT when it is below 32*.

 

You have to clean the ebp flaper inside the exhaust, they get corroded and rusty. Remove the 5 bolts that hold it on the turbo and leave it soaking under this chemical overnight




Then report back

 

No I do not. It is 4"?

 

Damn that sounds like a ****ty job in 20 degree weather!

 

So yours leaks air, looses hp and boost, and gets horrible mpgs until it warms up? I warm my truck up for 10 minutes and it's plugged into a oil pan heater all night and drive 10 miles to work and it keeps on blowing air and loosing boost at cruising speed.

 

And, if your EBPV is doing as you describe, it is potentially completely unnecessary.

Does it still engage when your EOT is above 180?

 

A lot of people like them for warm up & exhaust brakes,for those that don't there's a pedestal with out that feature offered after market.

 

I generally don't plug in all night, just for about 2-4 hours when I need to crank and go immediately. When it is in the 10-15 degree range outside, my EOT's are generally 50-60* when cranking after being plugged in for that amount of time, which is well under the temp threshold for the EBPV to stop functioning. So, yes it still functions.

Yes, it functions precisely like this, you can hear it in the cab, it feels like it is down on power, I do not lose boost, it simply takes a second for the valve to open when responding to the command from your foot and then subsequently from the PCM...it is bleeding oil pressure off.

When I am in northern NH, and it is -15 to -20 the darned thing never shuts down unless I am pulling reasonably HEAVY....empty you can almost forget about it unless you block some of the air flow to the radiator with a cover or some free cardboard.

 

Link to the information pertaining to parameters for EBPV function courtesy of F250 :

https://www.ford-trucks.com/forums/8...arameters.html


Ten minutes and ten miles is not a lot of time to heat a half a ton of metal that has about 8 Gals of coolant and 4 Gals of oil trying to cool it, then add the gallon+ of fuel that has entered the heads during that 20 mins plus the wind chill whilst driving.

 

With little to no back pressure, as in when I used to run a straight pipe exhaust, that dang valve would always do that in cold weather. I lived in a cold climate and never missed it once I unplugged it. Some get a tune to use it as a jake....I didn't have a need for that.

 

^^^Good point!^^^

You could simply unplug the valve under the turbo. It won't hurt anything but will throw a soft code. That way you can see if the truck runs better w/o it.

 

Great info guys! Yeah it seemed to function better this morning. I let it warm up for 15 or so minutes. It makes more sense to me know thinking of all the fluids. I may try unplugging it or a piece of cardboard. I will report back after a few days of messing around with it! Thanks for the input!