Kenworth t680 engine derate

Kenworth launched the new T680 Next Generation on-highway flagship during a virtual introduction today. The T680 Next Gen establishes a powerful new industry standard, and significantly expands upon the success of the classic Kenworth T680. ... The T680 Next Gen is standard with the EPA 2021 PACCAR MX-13 12.9-liter engine and PACCAR Powertrain ...

Kenworth t680 engine derate. Kenworth T680 stands out as a true game-changer in the trucking industry. The fully integrated aerodynamic long-haul truck features superior performance, impressive longevity, and highly efficient fuel consumption.And that’s not all. The truck blends luxury, comfort, and sufficient driver storage space in an unbeatable way. It is a piece of art that brings together expert engineering teams ...

2020 Kenworth T680 Trucks For Sale: 523 Trucks Near Me - Find New and Used 2020 Kenworth T680 Trucks on Commercial Truck Trader. 2020 Kenworth T680 Trucks For Sale: 523 Trucks Near Me - Find New and Used 2020 Kenworth T680 Trucks on Commercial Truck Trader. ... Trucks by Engine Size. 13.0L (182) 15.0L (7) 12.9L (6) 14.9L (1) Available Years ...

GM, KENWORTH T680, REPLACE ENGINE 2020 PACCAR MX13 TO A 2023 PACCAR MX13, WHEN ENGINE IS COLD ENGINE IS STABLE, WHEN IT STARTS WARMING UP Cummins ISX engine. ... Which are derate codes. The inactive codes are P1350, U1853, U1159, P004E. Code only comes on in morning after start. Paccar EGR ...AAA Trucks, LLC. Monroe, Georgia 30655. Phone: (678) 726-6181. visit our website. View Details. Contact Us. Fresh DOT 7yr / 700k Factory Engine Warranty Remaining (ask salesman for details) Fleet Maintained 555,112 Miles Lane/Collision Mitigation Paccar MX-13 455 HP Auto 12 Speed Transmission 2.64...See More Details.I have a 2017 Kenworth T680 with a cummins isx. It keeps throwing a check engine light (with the wrench inside). The code is always the same, "intake manifold pressure". It threatens to derate the engine in 3 hours. if I turn off the truck and restart it, the code goes away because it is now "inactive" but.... the 3 hour becomes 2 hours, then 1 ...Kenworth T680 stands out as a true game-changer in the trucking industry. The fully integrated aerodynamic long-haul truck features superior performance, impressive longevity, and highly efficient fuel consumption.And that's not all. The truck blends luxury, comfort, and sufficient driver storage space in an unbeatable way. It is a piece of art that brings together expert engineering teams ...2019 Kenworth T680 semi truck. Miles: 606,382 on odometer, VIN: 1XKYDP9XXKJ254655, Unit #: 2537. ... 445/50R22.5. Notes Dash warning indicator: Check engine, Unit must be towed or hauled, Engine issues, drivetrain derate. Oklahoma title. Title distribution may be delayed up to 30 days from verification of funds. Gemini Motor Transport. 4333 ...Hello - I have a question regrding a Kenworth T680 w/ Paccar MX-13 engine. I got the gold wrench on the dash and a bucnh of fault codes SPN 3216 intake Nox (1 time),SPN5397 freq regens (1 time), SPN 1 … read more

I have a 2016 KW T880 with 93k miles on ISX15 450hp I just got this message yesterday and it's got me all panicked. I'm new to all this new emission system BS, but thanks to CA I had to get rid of my older, perfect running trucks, and put myself in debt on a newer one! 2019 Kenworth T680 semi truck for sale in Max Meadows, Virginia. Item OK9802 will sell on April 4th, 2024. Purple Wave is selling a used Truck Tractor in Virginia. This item is a 2019 Kenworth T680 semi truck with the following: Miles: 606,382 on odometer, VIN: 1XKYDP9XXKJ254655, Unit #: 2537 PACCAR DX-40 Tandem Axle. *Please contact your local dealer for more spec information. Engine / Powertrain. 10.8 Liter. 355-455 HP. 1,250 – 1,700 lb-ft of Torque. Exhaust / Aftertreatment. PERFORMANCE. The ultra-aerodynamic T680 Advantage with the PACCAR Powertrain from Kenworth squeezes every possible mile from a gallon of fuel.I have a 2015 kenworth t680 in derate. Codes were pulled with jpro. 176119, 369709, 524619, p151e, p1495, p1496 and more. The truck was running fine, shut off for a few minutes, started back up and threw lights and codes. Def level shows empty when it is 3/4 and light flashing. Answered in 5 minutes by:Apr 26, 2020 · Engine in derate, dep tank is full, indicator says it's low. Engine in derate, 2017 International … read more. My t680 stopped. It is giving me a code. 2017 kenworth t680. Vocational, Technical or Tra... I have a 2017 t680 isx with Eaton ultra shift. I am having. Hello I have a 2017 t680 isx with Eaton ultra shift.

Hold down the regen button and keep holding the button down for at least 10 seconds. The engine RPM’s will start to increase from IDLE to a higher RPM. Remember, do not cancel the regen. Do not press brake pedal, clutch, park brake. A parked regen will take from 10 minutes up to 1 hour to complete.KENWORTH T680, REPLACE ENGINE 2020 PACCAR MX13 TO A 2023 PACCAR MX13, ... Hi I have a 2018 kenworth t680 paccar mx13 that went into derate we did a regen but it still says engine derate dpf is full it has both check engine lights on it has lots of codes that popped up im go ...Soot level high regenerate dpf to prevent derate. Check engine on too. DPF cleaned twice already. Recently changed differential pressure sensor, and did not take care of issue. ... Hi I have a 2018 kenworth t680 paccar mx13 that went into derate we did a regen but it still says engine derate dpf is full it has both check engine lights on it has ...Powering the Kenworth T680 are the high quality and reliability of the PACCAR MX engines. The 12.9-liter PACCAR MX-13 engine is designed to meet the demands of linehaul heavy duty truck applications — delivering the increased horsepower and torque needed to move large payloads with ease, even on steep grades.

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Revitalize your Kenworth's engine with 30 Min DPF Clean. We specialize in efficient, professional DPF cleaning services for optimum engine performance. ... At 30 Min DPF Clean, we offer comprehensive solutions for your T680 DPF filter, T680 DEF filter, Kenworth regen light, and more. Bring your truck to us for a thorough cleaning and …natural gas engine for the Kenworth T680 and T880. Cummins Westport ISL G Near Zero . Natural Gas Engine. Emissions from the ISL G Near Zero natural gas engine are 90 percent lower than the current NOx limit of 0.2 gram per brake horsepower-hour, and meet the 2017 EPA greenhouse gas emission reduction requirements. The new engine achieves thisThe derate faults might not clear on their own without the faults that caused them being present. ... KENWORTH T680, REPLACE ENGINE 2020 PACCAR MX13 TO A 2023 PACCAR MX13, WHEN ENGINE IS COLD ENGINE IS STABLE, WHEN IT STARTS WARMING UP IS MISSFIRES AND CLOGS THE FILTERS ...Apr 22, 2022 · SPN 4364 FMI 18, SPN 4349 FMI 7, SPN 4794 FMI 31 on 2020 Kenworth T680. DEF low level light on with 3/4 tank. Last 8 of VIN is LJ397893 read more. Nich M. Cummins/Caterpillar Techni... Vocational, Technical or Tra... 8,428 satisfied customers. Either one may lead to the derate and check engine light. If it’s showing empty, you most likely have an issue with the sending unit on the def tank. Check the connections to the tank and make sure all the wiring is okay. If so, you’re likely looking at a failed sending unit.

The sleek new exterior of the T680 Next Gen incorporates cutting-edge aerodynamic design features meant to squeeze every possible mile from every gallon. Offering you up to 6% in fuel savings from day one. New optional LED headlamps boost lighting efficiency, offering a wider pattern and whiter lighting for better visibility. Signature LED daytimeBrowse a wide selection of new and used KENWORTH T680 Day Cab Trucks for sale near you at TruckPaper.com. Login Dealer Login VIP Portal Register. Advertising Contact Us. EN. Our Brands ... FULL OPERATIONS NOT TESTED CUMMINS X15 Diesel Engine Rated at 450 HP Automatic Transmission Air Ride Suspension 12.35 FA, 40 RA, 200 WB GVWR 52,350 LBS ...This means that the unit is in the first stage of derate. Once you hit the second stage you will notice a engine torque reduction. Then soon after that the unit will go into 5 MPH derate unless it is addressed. I Would have the unit scanned for faults to see what is going on to find a good plan of action for repair.5. Interpret the Codes: Refer to the manual or online resources to interpret the retrieved codes. Understanding the codes will provide insights into the components or systems contributing to engine derate. By following these steps, you'll successfully locate the engine derate code on your Kenworth truck.Engineers look for efficiency in everything they do and these engineering apps provide a multitude of solutions to ensure this efficiency. Engineering apps make life for these prof...Engine Protection Torque Derate issue, Cummins, Kenworth 2012 T660 Is this a expensive repair, At the dealership, nearly - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... I have a 2014 Kenworth T680...I got a Level 1 engine.Jun 14, 2009. romulus,mi. 0. You have probably inadvertently solved your own problem. Removing air from clutch engages fan. Conversely, applying air disengages it. Build truck air to 120 psi, turn truck off, count to 10, turn key on. Fan should disengage without any air leaking from clutch or air line going to it.The shop diagnosed the truck with a bad particulate sensor. The sensor was replaced and the code did not come back. The 3712 and 3714 codes however would not clear, and the engine was in derate mode. Below you can see the conditions for clearing the code: 3712 - Aftertreatment SCR Operator Inducement- Data Valid but Above …The T680 Next Gen offers the 12-liter Cummins Westport ISX12N with ratings up to 400 hp and 1,450 lb-ft of torque. The engine can operate on compressed natural gas (CNG), liquefied natural gas (LNG) and renewable natural gas (RNG).

Level 4 derate codes…. 2016 kenworth t680 with a mx13 paccar. Level 4 derate codes p3940 and p3951. Replaced the DEF tank harness and DEF sending unit. Good afternoon and thank you for choosing JustAnswer! I'm Nick and I'll be helping you out today.

3712 and 3714 codes on cummins isx can't get it to clear and it has gone to derate. 2015 kenworth T680 with cummins isx. ... When a 3712 and 3714 fault code are triggered and an "engine power derate and vehicle speed limit" are implemented does that mean the truck will be limited to the "Active Maximum Speed" indicated in t ...8 Sept 2021 ... Emergency Engine Derate at 5MPH?! The Epic ... 2 basic Tips Volvo D13 engine won't start and no cranking ... KENWORTH T680 DEF LIGHT FLASHING!!Question about oil pressure on a 2018 kenworth t680 with MX 13 ... While driving the warning for engine derate came on with -3 hours left and to seek service immediately. I called the dealer where we bought the truck ... Kenworth T270, engine caution indicator constant, ...Hey guys we in Wyoming and we have trouble with the W900. This may be serious.diagnostic adapter compatible with Insite software. (Nexiq USB Link, Dearborn DPA, Inline & many others) laptop with Windows 7, 8, 10 or 11 operating system. internet connection. CONTACT US. Kenworth DEF SCR EGR DPF delete ECM tuning! Delete DPF, disable SCR & DEF dosing, block EGR flow! Code free!OTR Reset. Another way to reset your T680 is to buy an OTR (over the road) reset tool. Having an OTR reset tool can save you a lot of time and money and give you some … Communication Number: 56-002, Date: 2018-08-28. Category: 100000 POWER TRAIN. Summary: Non-Safety Campaign - PTOs in certain T680/T880 chassis equipped with PACCAR or an Eaton Endurant Transmission may not contain the wiring required to activate the PTO accessory. Communication Number: 59-001, Date: 2018-08-08. Engine derate can be caused by a number of specific faults, most of which relate to a truck’s emissions system. Some of the most common of these issues include DEF quality and DPF/SCR catalyst efficiency faults. In general, faults of this type impede upon a truck’s ability to successfully complete its automatic regeneration cycle.

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OTR Reset Tool | Paccar MX. $1,400 USD. $800 USD. Reset 5mph Derate 3. Reset Aftertreatment. Start Forced DPF Regen. Reset Fault Codes. SELECT YEAR. 2011 - 2015 | Black 2016 - 2019 | Green 2020 - 2021.2016 kenworth t680, thermo king apu, cummins isx engine, 10 speed, war13: t680 kenworth driver academy Kenworth t680 colorsKenworth t680 engine light says derate in 3 hours. 2022 kenworth t680 (for sale)Kenworth t680 subject change december 2015 kenworth t680Kenworth t800 c15 cab horsepower acert.With that being said, you might be in derate due to a mistake like; your DEF ran out or forgetting to put the ACM supply cable onto the positive terminal of the battery after replacing a battery and starting the truck etc. this is what you would need to do: Connect a diagnostic scanner capable of communicating with your specific truck. Clear ...Gabrielli Truck Sales - Dayton. Dayton, New Jersey 08810. Phone: (855) 217-7243. View Details. Contact Us. 2025 KENWORTH T680, 455 Paccar MX 13 Engine, PO16F112C Automated Transmission, 13,200 Front, 40,000 Rear w/Air Suspension. Double Bunk Sleeper. UNIT# DN-4099. Get Shipping Quotes.That happened to me in a Crapcadia. I filled the DEF at the TA in Wheat Ridge and made it to Vail before the light came on and the engine derated to 55. I drove a bit further and made it to Rifle without the engine derating further and parked it because I wasn't looking forward to driving at 5 MPH on those narrow shoulders on I-70.03: Overview of the Driver's Studio features and amenities designed to make those long-haul journeys a bit more comfortable.#Kenworth #T680NextGen #TheDrive...RE: Kenworth t680 derate mode. (10-13-2021 )Gosha Wrote: Hi. HI. I do have 2016 kenworth t680 cummins isx15. I do have a message on the board ENGINE DERATE ,but no check engine light.Can you please help me with this or any advices. Thanks. Without the fault code, it could be a bunch of items. Get someone to hook up insite to it and grab the codes.If it is derated, it may tell you when you go through the diagnostic area of the in dash display. It will say something like "Derate". Then again, it may not and be only visible to a connected computer. But driving it will tell you as well. Low power, pretty sluggish. Yellow check engine lights aren't too much to get excited over. ….

High Engine Coolant Temperature. Excessive coolant temperature is one of the most frequent reasons an ECM will enforce a derate. The coolant temperature sensor provides constant real-time readings to the ECM. If the coolant exceeds the maximum predefined limit, usually around 230°F, the ECM will immediately derate engine power.Driving with a de-rate may cause permanent damage to your engine or emission system. Be cautious when driving with an active de-rate and get into a service shop as soon as you can to figure out what the issue is. In this case, it was obvious the DEF Doser was not functioning as it should. That white powder is DEF that was found its way …Kw t680 2015 Cummins isx 2013 engine. Just was able to get the fault code at this - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... Engine derate showed up on dash; kw t680 Cummins isx 800,000 just completed pm. Want to fix myself.2021 Kenworth T680 Trucks For Sale: 161 Trucks Near Me - Find New and Used 2021 Kenworth T680 Trucks on Commercial Truck Trader. Commercial Truck Trader Home; Find Truck ; Advanced Search; Saved Searches; Saved Listings; Dealer Search; ... Trucks by Engine Size. 13.0L (55) 14.8L (2) Available Years. 2021 Kenworth T680 - 161 Trucks.Power train derate and the codes are saying something about my coolant pump going bad. 2019 t680 kenworth Paccar mx13. - Answered by a verified Technician ... Hi I have a 2018 kenworth t680 paccar mx13 that went into derate we did a regen but it still says engine derate dpf is full it has both check engine lights on it has lots of codes that ...2016 Kenworth T680 Cummins ISX15 Vin: 463442Symptoms: I am getting intermittent codes SPN-5394 FMI 5, SPN-3520 FMI 4, and SPN-3363. The codes come and go. The fault codes trigger an engine derate but … read moreQuick Navigation [ show] In general, a derate means that the car engine computer program is limiting the vehicle speed or power. It is designed to protect you from causing any engine or diesel particulate filter (DPF) damage. However, engine deteriorating, aka derating, can be extremely beneficial in certain situations.To diagnose and fix DEF contamination in a Kenworth T680 with a Cummins ISX engine, you can follow these steps: Check the DEF level using the gauge or dipstick. If it is low, add DEF fluid as needed to bring it to the proper level. Check the DEF fluid for any signs of contamination, such as a change in color or consistency.Engine derate in 3 hours. 2014 t680 Cummins. It say seek service immediately. Was doing 70 mph when it come on and truck - Answered by a verified TechnicianAvailable now for immediate delivery. New 2024 Kenworth T680 with 76" raised roof sleeper, Cummins X15 Efficiency Series engine rated at 500 horsepower, Eaton Endurant EEO18F112C 12-Speed automated... See More Details. Stock Number: KF368539. Mileage: 250 mi. Kenworth t680 engine derate, This stream is created with #PRISMLiveStudio, Either one may lead to the derate and check engine light. If it’s showing empty, you most likely have an issue with the sending unit on the def tank. Check the connections to the tank and make sure all the wiring is okay. If so, you’re likely looking at a failed sending unit., 2020 Kenworth T680 Trucks For Sale: 523 Trucks Near Me - Find New and Used 2020 Kenworth T680 Trucks on Commercial Truck Trader. ... Trucks by Engine Size. 13.0L (182 ... , Subscribe to downloadJasper's Kenworth T680 2022 v1.1.7. NOTE: always keep the mod on high priority, so you don't have any crash problems. I know there are other mods that do the same job, but every mod is a mod and something will always be different. I will always try to update the mod with new accessories., 2019 Kenworth T680 semi truck for sale in Max Meadows, Virginia. Item OK9802 will sell on April 4th, 2024. Purple Wave is selling a used Truck Tractor in Virginia. This item is a 2019 Kenworth T680 semi truck with the following: Miles: 606,382 on odometer, VIN: 1XKYDP9XXKJ254655, Unit #: 2537 , Checking the oil is one of the most important maintenance tasks for any vehicle owner, and it's especially important for heavy-duty trucks like the Kenworth T680. Make sure to check the oil level regularly and change the oil at the recommended intervals. Using the recommended type of oil is also important to ensure optimal engine performance ..., KENWORTH T680, REPLACE ENGINE 2020 PACCAR MX13 TO A 2023 PACCAR MX13, ... I have 2015 Kenworth T680 with a code P3757 Exhaust gas temperature after DPF - Voltage too low or short circuit to ground. The truck will run but a …, How to manually Regen a Kenworth T680 with Paccar EnginePeterbilt 579 Engine light clearing procedure ... SPN 513 FMI 14 / SPN 627 FMI 4. Dash says low def, but tank is FULL. Won't regen. Engine derated to mph. Took the 2 ABS fuses out and after treatment relay out so i could drive it. But need help. No power but at least I can move faster than ..., Heres the video. Like I said, worked for me most of the time but I can't guarantee it. If you have like a stuck turbo, it wont fix that. Wont fix a mechanic ..., 2020 Kenworth t 680 , new coolant sensor but stilll get the yellow coolant box light , then the red stop engine light . LJ312649 JA:Have you checked the coolant level in your Kenworth T680? Customer:Y … read more, Kenworth t 680 def sensor gone bad maximum De-rate limp home mode, I got a 2019 KW T680 in Aug 2018 . I haven’t had any issues with it since I got it. But now in 4/19 as we were heading to LA from near San Francisco... I got a check engine warning light on the dash ... and a 3 hour derate message ... so I found a place to pull over and shut it down ..., The Kenworth T680E helps you achieve your sustainability objectives, while leveraging the excellent performance, reliability and cab comfort of our classic T680 on-highway model. The zero emission Kenworth T680E has an estimated operating range of 150 miles, depending on application., Powering the Kenworth T680 are the high quality and reliability of the PACCAR MX engines. The 12.9-liter PACCAR MX-13 engine is designed to meet the demands of linehaul heavy-duty truck applications — delivering the increased horsepower and torque needed to move large payloads with ease, even on steep grades., Plus, the T680 and T880 provide overall better performance when fully optimized with the 12.9-liter PACCAR MX-13 engine," said Kevin Baney, Kenworth chief engineer. Kenworth T680. The Kenworth T680 is available for the first time in a 119-inch BBC. This configuration includes a three-piece, bonded aerodynamic hood made of sheet molding compound ..., Hi sir I have Kenworth t800 dump truck and paccar mx13 year 2013 engine problem is few codes comes up and truck derate 5mph codes is p1495,p1514,p1518,p151ap3798,p3904,p3908 pls help me for this codes …, Hi sir I have Kenworth t800 dump truck and paccar mx13 year 2013 engine problem is few codes comes up and truck derate 5mph codes is p1495,p1514,p1518,p151ap3798,p3904,p3908 pls help me for this codes … read more, Dash shows, SCR System Fault, Engine will Derate in <60 mins.. please help me.. Dealer says they cant take me in til Monday. AlexD13, Aug 6, 2016. AlexD13, Aug 6, 2016 #1. Trucking Jobs in 30 seconds. Every month 400 people find a job with the help of TruckersReport., , In the dash it’s telling me it’s going to derate in 3 hours. It’s now down to 1 hour. Plus check engine light is on. Ask Your Own Medium and Heavy Trucks Question. No fault code stored. Thay tell me if the second check engine light is on then the code is stored. a code is stored when the check engine light comes on., Experience the cutting-edge performance of the 2024 Kenworth T680 Next Gen. We have large selection of in-stock inventory equipped with a powerful PACCAR or Cummins engine, 12 speed automatic transmission and spacious 76" high rise double dunk sleeper. Contact your local MHC dealer to learn more today!, The Kenworth T680 with PACCAR MX engine offers a satisfying combination of reliable performance, superior fuel efficiency, exceptional styling and extraordinary driver comfort. Kenworth's most aerodynamic truck to date, the T680's sculpted full-height roof and side extenders turn heads. Inside, the cab offers 65 percent more storage space, a 50 ..., While driving the warning for engine derate came on with -3 hours left and to seek service immediately. ... I just got truck (2015 kenworth t680 cummins isx engine) I just got truck (2015 kenworth t680 cummins isx engine) serviced at El Paso Kenworth dealer. Had them remove 2 derate codes that put me at 5mph due to bad def quality …, However, these same engines, often found in Peterbilt and Kenworth trucks, can also enter a far more severe 5 MPH derate, if the issue at hand is not quickly recognized and remedied. This heightened …, Jan 4, 2017. #17. OK so the def quality sensor is part of the header in the def tank on newer than 2014 trucks. Before that it depends on the version you have. Def quality can set for two different reasons NOx sensors not reading conversion from upstream to down stream and the def quality sensor itself., Freightliner Cascadia 125. 455 hp. 52000 lb. 216 in. Compare. View updated Kenworth T680 Truck Tractor specs. Get dimensions, size, weight, detailed specifications and compare to similar Truck Tractor models., The Kenworth T680 with the PACCAR MX-13 Engine "Kenworth is very pleased to earn the tremendous honor of being the 2013 ATD Heavy Duty Commercial Truck of the Year," said Gary Moore, Kenworth general manager and PACCAR vice president. "The Kenworth T680, with its 2.1-meter-wide cab, establishes a new standard of excellence in the industry with ..., Kenworth T680 stands out as a true game-changer in the trucking industry. The fully integrated aerodynamic long-haul truck features superior performance, impressive longevity, and highly efficient fuel consumption.And that's not all. The truck blends luxury, comfort, and sufficient driver storage space in an unbeatable way. It is a piece of art that brings together expert engineering teams ..., The company currently has 40 Kenworth T680 Next Gen with 76-inch sleepers and Cummins Westport ISX12N engines rated at 400 hp on order with NorCal Kenworth – San Leandro. “Several years ago, Matheson began the process of transitioning its fleet to running Kenworths because they were viewed as high quality and reliable trucks,” said Shandy., MX 13 EPA 13 Emission control system - Engine torque derate active P1518 FMI N/A Count 49. From what I've found so far P1496, P1515 and P1518 are triggered by some other codes and latch after 10 hours. I don't have DAVIE to reset them. I can't find anything on SPN 5246 though., Hi , i have Kenworth t680 model 2018 ! Now is showing increased derate in 2 hours, and my def indicator red light Kenworth T680's DEF gauge. Mechanic's Assistant: Hi there. Is the indicator light flashing or blinking, or is it solid? Is the check engine light also on? Solid. Mechanic's Assistant: What's the approximate mileage on your 2018 ..., I have a 2019 Kenworth t680 with a paccar mx 13. engine MIL light comes on sometimes after starting. has some stored codes but the codes never seem to be active. even when the light first comes on, ne ... 2018 Peterbilt 579 with MX13 Paccar Engine- Engine in Derate mode with fault codes P1515 & P006B. Another mechanic put a new EGR Valve on it ..., I have a 2015 kenworth t680 in derate. Codes were pulled with jpro. 176119, 369709, 524619, p151e, p1495, p1496 and more. The truck was running fine, shut off for a few minutes, started back up and threw lights and codes. Def level shows empty when it is 3/4 and light flashing. Answered in 5 minutes by: