EGR Delete...hiss under boost, latest Ford flash????

[chizetown]

I recently installed an EGR Delete kit and a new oil cooler (Dec. 2010). I removed the EGR valve and installed the block-off plate that was supplied with the kit. Also a new solid up-pipe was installed with the kit as well along with radiator flush and refill.

My truck is a 2004 with a 2003 motor (bone stock other than EGR delete) according to the tag on the block. Every since I have installed the parts the truck now has a hiss only when the turbo is developing boost; like going up a hill. Not sure if it is an exhaust leak since I cannot hear any hissing with the truck idling in my driveway.

The truck doesn't have any CEL lights but it runs kinda crappy now. Hills I could just cruise up with a little more boost and gas almost every time requires the the truck to downshift. When the work was done they also flashed the truck to the latest one. I have since read that there is some sort of "EPA" limp mode for the new flash if the truck doesn't detect an EGR valve. I tried to plug the EGR valve back into the harness and it made no difference; at least none that I could detect.

Do I have an exhaust leak pre-turbo? Or is the "EPA" limp mode my issue?

Thanks,

[2006PSDSD]

You will have to leave the EGR valve plugged in now, with that new flash. It also disables your cooling fan if it doesn't see an EGR valve. Just plug it in and leave it sitting in there on top of the engine. I would say that you have an exhaust leak before the turbo, like maybe a cracked Y pipe or maybe the plug didn't seal in the up-pipe, depending on who's delete kit you used.

If you do have a cracked Y pipe, I have a spare one that I'll sell you at a 3rd of the price for a new one

[chizetown]

Will a SCT with a custom tune take care of having to leave the EGR plugged in? How hard is it to re-flash back to what I had?

What's the easiest way to check the Y-pipe for a leak?

Thanks,

[2006PSDSD]

Originally Posted by chizetown

Will a SCT with a custom tune take care of having to leave the EGR plugged in? How hard is it to re-flash back to what I had?

What's the easiest way to check the Y-pipe for a leak?

Thanks,

I don't know that for sure, all I know is that it will keep you from having CEL issues. I think that once it's been reflashed, you're going to have to leave it plugged in . As far as getting it reflashed back, I doubt that's gonna happen

Probably a smoke test would be the easiest and fastest, but it's a b!tch to see anythign back there, and if it only happens with the higher pressures it could be impossible to find. Maybe start the truck in the am and have someone sit in the truck and power brake it and see if you can hear or feel the leak . Make sure you trust whoever you use to do the powerbrakeing, since you'll be laying on top of the engine

[Lilpooh]

Contact PHP (Power Hungry Performance) they can reflash to a older calibration.

Power Hungry Performance - Feed your hunger for POWER!

[chizetown]

I talked with Innovative Diesel and they indicated that their tunes correct the "limp" mode issue with the EGR valve not being plugged in and also the cooling fan issues.

Anyone else have knowledge using a custom tune from ID and have there ER valve removed? Any side effects?