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Spn1231 fmi2 and son 4094 fmi 1. 2013 Mack mp8 truck runs…

Customer Question
Spn1231 fmi2 and son...

Spn1231 fmi2 and son 4094 fmi 1. 2013 Mack mp8 truck runs buts starts acting like it’s got a miss. Checked dozer all good. Won’t let do a regin cause it won’t idle up with it cutting out.had code 2 weeks ago for turbo actuator and replaced ran good until Monday

Mechanic's Assistant: Is the rough idling consistent? Anything sound different?

With cruise control and intermittent

Mechanic's Assistant: What's the make/model of your 2013 truck?

Gu713

Mechanic's Assistant: Is there anything else the truck Mechanic should know before I connect you? Rest assured that they'll be able to help you.

I’m using jpro system

Submitted: 1 year ago.Category: Medium and Heavy Trucks
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Answered in 5 hours by:
6/25/2021
Technician: Mike Mcmillan, Shop Foreman/Triage Tech replied 1 year ago
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,427
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel
Verified

Hello and thank you for using Just Answer. My name is ***** ***** I'd like to try and help. On your issue, I would check the connections on the vgt actuator, Make sure there are no loose pins or connection issues. We have had a lot of issues with that. The 4094 is just a derate fault. I would also make sure the sector shaft in the turbo is not hanging up. If the turbo is not adjusting properly it can lug the engine down and act like a miss.

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Customer reply replied 1 year ago
All of that has been looked at and is good
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Mike Mcmillan
Mike Mcmillan
Mike Mcmillan, Shop Foreman/Triage Tech
Category: Medium and Heavy Trucks
Satisfied Customers: 6,427
6,427 Satisfied Customers
Experience: Volvo/Mack Master Tech, Certified with Cummins, Eaton, GM, Hino, Detroit Diesel

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