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Weak turbo

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It seems like my 2010 Mack cxu pinnacle sleeper is allot more slower than an other 2010 Mack cxu pinnacle day cab? Why do you guys think? Also the hake break is allot better on the day cab?

Edited by Vince Riggio
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Engine rating and type? Specific programming differs thru the maxicruise, econodyne, and maxidyne and their performance is definitely different.

We've also had some programming updates that affected the turbo operation during braking but a weak or faulty turbo definitely can cause what you're describing, but the diagnostics are best left to a dealer.

Sent from my iPhone using Tapatalk

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