Very Sluggish! HELP! - Ford Powerstroke Diesel Forum
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Old 06-24-2013, 01:07 PM
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Very Sluggish! HELP!

So I've been noticing a problem or what I think is a problem with my truck for a while now, but it just recently scared me enough to ask for help.

So I've noticed my truck has been having a low end acceleration problem. Off the line its very very slow, like it has no boost or I'm trying to tow the empire state building, but you can clearly hear my turbo and the boost gauge moves so I don't think its a turbo issue. But for the first 2-3 gears it seems very sluggish like it just doesn't wanna move! After the 3rd gear or so its fine and runs normal. I don't know what this could be. No white smoke, no missing. Everything is and acts normal I just gotta get out and push the thing for the first 100 or so feet!

Any ideas or help?
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Old 06-24-2013, 01:11 PM
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I know you say you don;t think it is a turbo issue, but I would suspect you may have a sticking VGT ring causing the turbo to have more than normal boost lag...
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Old 06-25-2013, 06:18 AM
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How many miles? Sometimes they just wear out.
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Old 06-25-2013, 09:46 AM
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well I wanna check the turbo to see if its sticking but I'm not that talented of a mechanic! I promise I'd screw something up trying to check the turbo my self.

But I have relatively low miles on mine. I'm at 110k
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Old 06-26-2013, 01:25 PM
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Just had that same issue on my excursion. It sat for a couple months while we did bodywork and paint. Went to drive it and you could hear the turbo whistle and it was boosting (registering on the edge insight). Pulled the turbo and there was some rust where the arm from the solenoid is supposed to rotate. Cleaned it all up and it is good to go again.
Once you get your turbo out, remove the large clamp to separate the exhaust side. You will see the vanes, unison ring, and vgt solenoid arm. Get some 3m reloc discs and clean it all up. I put antisieze on everything, reassembled, then reinstall. Look at the unison ring and make sure it is now wallered out where the solenoid arms rides.
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