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Vgt positioning sensor

Voltage low or shorted to battery

Occurrence count 15 In 8 miles

Service required--eng pwr may be reduced

All gauges normal exept boost, hard pull runs it up to 37 psi then dumps back to 10 or 15 psi

Fault will occur pulling, flat, or down hill

Western ok. Rolling hills

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https://www.bigmacktrucks.com/topic/22677-need-help-super-heroes/
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Hope Mackpro didn't have to many bud lights last nite

He's Gona get a text about 9:30

No BL's last night, I was up at 6 on my way to work, Got your text this morning. I was at my other job, I work 7 days a week in the winter so I can have more play time in the summer!. I would say just replace the turbo actuator/VGT when you get that many codes on it. Unless you have a wiring/harness issue or oil/coolant in the harness/ engine ECM or an air pressure issue to the . VGT or to the VGT controller box. With the local guys, I usually clear the codes and recalibrate the turbo and let them run a day and see what happens, but usually we end up replacin the actuator. Thoses things are $$$$$ about $1100 I think. And some times their like your starter "dont want to come off".

Boost is all over the scale

It would be doing fine never more than a mile

Then throw code and derate to less than 20 psi. And exhaust temp go out of site

After a minute or 5 the code will go inactive

If I stayed on it boost would jump to near 40 psi

If I watched and stayed out of the throttle enough to keep boost around 30 it would go a little till derate

Thanks Trey

I am kinda worried about any body but Mackpro toying with my actuator and climbing in my bank account

I'm laid up at petro till they open 2maro

This place is crazy big mite get to it tonite or tomaro

I would love to work on your truck as I have had 2 weeks of MP's falling apart, bolts stripping out , bolts breaking off in turbos and other failures due to poor parts quality. Someone give me a grey motor to work on quick!

This place is crazy big mite get to it tonite or tomaro

Someone needs to help Bigen with his truck - not only is he stranded, but so is my Mack that he is going to haul home for me.

Time seems to drrraaagggg when you are waiting for wrenching to start!

Can't say much for the service department since I do my own work but there's a bunch of good honest guys in parts. Also bought my truck there and was very pleased with them on that too. Hope they get you going soon and without a lot of $$$$$! Trey

Their pretty sure it's an actuator

Would you like us to put one on for you sir

Ok as soon as we can get it back inside we will get right on it, hopefully by this after noon

Don't you just love what is called good service in a big corporate setting

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