got a couple more pics that are better. looks like a linkage of some sort.





the other line is a fuel line I believe. unhooked it and it is not part of these last 2 pics.

 

hmmmm, this looks exactly like what I have found and have no idea what it has to do with anything

 

Is that the EBPV actuator rod? In your picture in post 57, it looks like the other end of the linkage for the EBPV, but without seeing it in person it's hard to get my bearings there.

 

I did a parts blow up on the pedestal n that is what it looks like it is. just wondered where n what it hooks to. it was unplugged on the other side. if this is just sittin in there is it robbing me of any performance. should this be removed n plugged off some how.
don't know why they would put that little adjustable end on there with no where to hook it.
thanks scott

 

The EBPV rod should go to a cylinder on the turbo pedestal on one side and the bottom bracket of the EBPV on the bottom of the turbo outlet housing on the other end. As for robbing power, I guess it is possible. If that rod is disconnected and the valve is part way shut, or is just loose there and can be moving around while you're running the truck, it could be costing you a little bit of efficiency.

The EBPV is designed to close when the truck is cold and help the engine warm up. There is a sensor that detects how much back pressure there is before the turbo (called the EBPS -- Exhaust Back Pressure Sensor) and opens and closes the valve accordingly to attempt to aide in warming up the engine. It works okay, but the sensor tube tends to get clogged and then the valve closes when it shouldn't be (which definitely costs you in terms of performance). When that happens, most people unplug the two wire connector for the EBPV and wire the valve open. It's possible that someone disconnected that linkage instead of unplugging the connector. The electrical connection is under the inlet side of the turbo and should be a little two wire connection.

 

Would you be able to tell if it was part way shut? I unplugged the two wire connector about 2 days after I bought the truck. I get about 18 mpg and seem to have good power.

 

Then its not part way shut, that's great mpg!

 

Your EBPV might be gutted. From my experience if you can see the end of the actuator rod, the arm for the valve is right there. It looks like someone cut it free. I have done that twice to gut my EBPV's.The cast piece the bolts to the turbo exhaust housing is where to look for the arm. The arm connects to a vertical shaft that rotates the valve inside the housing.

EDIT: I get 19 mpg with my reg cab truck, and 17.5 with the extended cab.

 

With mileage like that I don't think you have anything to worry about. And I just have to brag that I got just a tick over 18MPG average on the way home (from GA) with my CCLB truck driving 75-80 the whole way. And that is with the stock intake and exhaust (less the cat) and a slight fuel leak. I'm pretty stoked about that! God bless the 3.55s and ZF5, lol.

 

Wow, that rules!! Good to hear. I am not sure how I am getting that mileage. Prolly drive like an old dude. I think my uppies leak a little so those will need attention soon, but power still seems good for a Pig dually.

 

I think I'll go throw up now,

 

Hahaha, that's probably about twice what you're seeing towing, isn't it? Look at it this way, you're carrying about 3 times the weight and getting 9 MPG, so technically, you're still more efficient!

 

Nate is right Glenn! I will definitely report what happens the first time we pull the Sundance to another campground. i am guessing about the same or even a little less than you. I don't have all of the upgrades.....yet

 

Ya Glenn, I'm afraid to go fill up after the pull yesterday. In my head calculations make it MAYBE 7mpg.. I could almost watch the fuel gauge go down as the boost went up.

 

Last year with the Mule I traveled 7,870 miles at the cost of $3,342 with the grand total average of 9.43 mpg. That's not all towing, I would say a couple thousand of that is running around light. The worse mpg was 7.0 and the best was 13.5.

This year with the Mare I have traveled so far 8176 (1,300 miles to go to get home) miles at the cost of $3,591 ( a average of .20 cents cheaper then last year) with the grand total average of 9.47 mpg. Probably more running around light then last year giving me a slight better average, LOL My worse though was 6.7 mpg, the Mare is just a little worse then the Mule was. The best was 12.23 mpg

The best mpg's listed were running light. That why I went and found a bathroom because I have never gotten what is claimed here. When I'm running around light I don't hammer it but I also don't drive like a grandpa, even though I am, LOL. Now, on the other hand, when I have the 5er on I give the old girl NO MERCY!! I hammer it hard because I have done a lot of work and spent and lot of money to be able to pull any hill or fight any wind. In other words, when I'm pulling, I don't care at all about MPG!!