I've posted before about my truck running somewhat sluggish, and I haven't had time to really check it out completely. My symptoms keep leaving me to believe that my EBPV might be sticking a bit. When the weather here was nice and warm for the past 2 weeks (way above average), my truck was running great. Now that it's cooled down again, it's a slug. I've been really paying attention to the exhaust note and any changes lately.

To get to the point, today I climbed under the hood and looked at the housing for the EBPV and the visible part at the bottom of the actuator. Here is a pic that Kwik posted before that I snagged to help visualize:



My main question is: can you move that lever by hand? I tried and it won't budge, and I wasn't sure if that was supposed to be like that. It's really hard for me to reach, so I can't get that good of a grip on it. Also, comparing mine to the picture, even when my engine is warmed up completely (drove around for about 45 minutes and checked it a second time), the lever at the bottom points more towards the passenger side than in the picture. I'm guessing that it is sticking, that's why i was trying to turn it by hand.

When I crank it cold, I can see it rotate, but it doesn't seem to completly open back up when warmed up. My previous post was when I noticed a big change in how my truck ran after a fill up. After 2 full tanks it kept running the same until the temps changed.

I've been working quite a bit, and simply don't have time right now to take it into the dealership for any warranty work to fix it. I would just like to open it up, then disconnect the solenoid for now until I can take time to drop it off for repair.

 

That lever needs to be pointing at about your knees when the valve is open. It's similar in construction to a carburator butterfly valve. Just a flat piece of round metal that turns sideways in the turbo outlet and blocks the flow of exhaust. So it's a 90 degree rotation from fully open to fully closed and visa versa.

 

Thanks Kwik, I knew it was a valve that closes the exhaust. I just don't know if you are able to turn it by hand with the engine shut off. I think mine is sticking, because after my truck is warmed up it stays pointing almost to the passenger side mirror. I don't have the time right now to get back there to drop the downpipe and take a peek. Just something that is bugging me right now.

 

I just returned from a friends house, engine too hot to touch. I'll see if mine moves tomorrow and let you know.

 

Its dark as all get out here or else I would go check it out. I've had mine unplugged forever, just throws a code is all.

 

You can not move the actuator rod by hand when it is connected. There is a little slide clip on the bottom side of the connector at the butterfly that will allow the rod to drop straight down....the butterfly should move freely once the rod is disconnected.

 

Ok, thanks cookie. Here's an update for everyone and what I've found.

Yesterday when I shut my truck off, I had been running around town for about 45 minutes, parked it and checked the rod and it was pointing almost to the passenger mirror. I cranked it this morning (22 degrees outside) and watched it move probably another 15-20 degrees pointing to the passenger fender. Had the usual hissing sound from the exhaust so the valve was closed to warm up the truck. I let it warm up for a few minutes and I drove to work which is only less than 15 minutes away. About a mile down the road the truck picked up power and started running great. After I got to work, I popped the hood and this time the rod had moved all the way over to the position as in the picture above. It looks like it finally opened up completely since it wasn't in this position yesterday when I shut the engine off.

Looks like it's definately my EBPV sticking, so I'm going to unplug the solenoid for now and deal with it until I have time to take it to the dealer.

Guys, thanks for the help. It was something I was suspicious of before and ya'll helped me confirm what was going on. This board is great.