I'd only clean it if it was giving me issues. Drive the truck hard every now and then, letting is see full boost to let the Vgt fully cycle, and you won't have issues.
I think mine is sticking, can we get some details on symptoms? Specifically, did the exhaust note get deeper.... less vacuum sounding, more V8 growl? Especially at deep part throttle...
I just cleaned my powermax turbo last weekend.
It was sticking when I got on it.
If I was getting on the highway or something after I let off and then steped back o the gas it would really dog and smoke like a freight train.
I'm not getting any power out of my truck, when I step on it the turbo needle doesn't even make it to 20 anymore. I used to blow by cars when I gunned it to pass but now it just doesn't pull.
My speedo isn't working, is it possible this could be affecting the turbo? If not, does this sound like a dirty turbo? Once in awhile the truck seems to get stuck in what feels like a lower gear with a loud whine coming from the tranny or the turbo, not sure which. I pop it into neutral and rev the engine a couple of times, and it usually clears up.
Have you checked the y-pipe. You might have a leak.
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