More wastegate stuff

[drenski]

Ok. I'm hearing all this stuff on whooshing sounds and waste gates. I think I must have a problem with my waste gate. When it's cold, especially in the winter, it's really agrivating when I get up to speed and let off the throttle that a whooshing sound or sucking sound starts up and my truck seems to lose power. It seems that the sound is coming from behind the jocky box. If I let off the throttle or if I accelerate more than gradually it goes away. I can even do it while in park as long as it's cold. Any ideas? Thanks.

[vitalidle]

Thats probobly your exhaust back pressure valve. It closes and puts a load on the engine to aid in warmup.

[drenski]

Thanks for the reply.

Is it normal to kill the power so much? It didn't seem to do it the first year I had it. How easy is it to fix or replace?

[vitalidle]

Its a butterfly valve on the back side of the exhaust side of the turbo right where the downpipe hooks to the turbo. If it sticks shut it almost completely closes off the exhaust pipe and you lose all kinds of power. There is a couple of things you can do actually a few. You can unplug the solinoid that actuates the valve. You can pull it apart and clean the valve and housing, or you can gut the whole thing.

[drenski]

Great! I'll check it out tomorrow. I'm assuming that if I gut it there will be nothing there to close and so there wont be a problem anymore. Will this adversly affect my engine over the long run?

[vitalidle]

Well personally if you want to gut it there is a couple of ways of doing it the cheap diy way or buy the parts to replace the valve housing. I would just unplug it for now. When the truck is shut off its plugged into this solinoid it has a wire clip to hold it on. This is the turbo pedistal or what the turbo sits on its in the front. Unplug and see if it fixes your problem.

[CSIPSD]

There is nothing wrong with it... Its doing its job... Makes a dandy exhaust brake too...

[Logan]

I loved having mine for an exhaust break. Works great.

[drenski]

I can see how it would work as an exhaust brake. What really makes it a pain for me is that when I'm at cruising speed it will kick in and cause the truck to slow down go I give it more throttle which causes it to turn off but then I start to go too fast so I let off the trottle to slow back down and then the it kicks back on again. Vicious circle.

[kefier2001]

I just gutted mine when it started sticking!! Pretty easy to do, just takes some time and patience. Good luck to ya!