Paccar Mx 13 Loss Of PowerOne of the most common Paccar MX 13 turbo problems is a decrease inpower. Paccar EGR Disabled triggered SPN 411 P1495 P1496 Explainer ">Paccar EGR Disabled triggered SPN 411 P1495 P1496 Explainer. 043-825 SCR doser Injector - R&R 0. 0 hour labor if the inlet screen is plugged and the corrosion on the heater is flaking off to remove the DEF Pump, flush the lines, and replace the filters. i have a 2015 KW T880 with an MX13 in it. I don't see why the wastegate would open under a condition where it isn't. A distinct click will be heard from the OCV when power is applied to it. T660 mx 13 paccar. In this video I revisit the Paccar M13 Power Loss issue with air leak complaint. The fault codes related to P1495/P1496 mean that the engine protection has been enabled causing the EGR to be disabled and the system to go into preventative safety measures. The fault is likely tied to a EGR "fueling" derate that when active limits fuel, thus reducing power. I have a kenworth with Paccar mx 13 engine. Chassis Affected All PACCAR MX-13 EPA 2013 engines. I have a Paccar MX 13 epa 10. Our remanufactured Paccar Turbo Actuator includes the installation kit and gaskets. The failure mode is extremely difficult to accurately diagnose through normal diagnostic procedures due to the nature of the failure. PACCAR MX Engine warranty. If the inlet screen is not plugged and corrosion on the heater is not flaking off, continue with your diagnosis and file a standard claim. In some cases, the cause can also be related to fuel supply issues or oil contamination. Ask The Experts: Actuator Not Moving? Engine Losing Power?. PACCAR MX-13 Engine The first new rating of 405 hp and 1,650 lb-ft of torque provides constant power for line haul applications, enhances integration with the PACCAR Powertrain, and offers increased fuel efficiency. All of a sudden it loses power for a little bit and comes back again. Optional Calibrator Tool Rental. If you're having this issue, make sure all your seals and gaskets are in good shape and your fuel pressure is acceptable. Any help and ideas would be greatly appreciated Reply mike_service Location Offline Posting Freak Reputation: 389. Engine Losing Power? It Might Be Your Actuator. Action FIX-AS-FAIL If a customer comes into your dealership and demonstrates the condition above, with NO other drivability issues, replace the turbo speed sensor. Kenworth Adds Two New Ratings for PACCAR MX. When paired with the 12-speed PACCAR TX-12 transmission, Kenworth predictive cruise control, and PACCAR DX-40 axles, the. We spec Mx13s with 391 rears and 18s for super bs. I have a 2012 epa10 paccar mx 13 engine with really low power issues. E124 ESB E124 -PACCAR MX-13 EPA2013 SCR Efficiency Codes Page 1of 4. PACCAR MX Engines Unveiled: Gives Operators Better MPGs ">2021 PACCAR MX Engines Unveiled: Gives Operators Better MPGs. PDF Technical Information Bulletin. The regulator was replaced because fuel pressure was bouncing from 20-210. Get printouts, then progress can be made. Guys remove the EGR cooler and cap off the exhaust. When the turbo finally kicks in it has tons of power again and pulls great. 2012peterbilt with paccar mx sometimes the. Paccar mx13 - lack of power Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by zaroba, May 13, 2020. Take screenshots of the graph and sensor values approximately 2-3 minutes prior to engine shutdown. T660 mx 13 paccar. So if you are losing power intermittently as well as having a significant amount of. This should be little to no air bubbles. Paccar MX13 Power Loss & Air Leak Revisit with Dr Paccar. Here is the story, its kinda long so I apologize in Paccar (unofficial) MX Problem Solvers | Hello all, having an issue with a 2016 Paccar MX13 in a truck I just bought. Page 97 Warranty OR LOSS TO OTHER ENGINES, VEHICLES. Then I shift into 8th gear and the same thing happens again. 2016 Paccar mx13 stop engine light comes on at 65 mph and boost drops to 20 psi max. Hello all, having an issue with a 2016 Paccar MX13 in a truck I just bought. The causes of a loss of power in the Paccar MX 13 can vary from faulty sensors to drumming on the injectors. Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far?. List of fault codes for Paccar MX13 EPA17 P0016 = Camshaft speed signal - Not corresponding with engine position P0017 = Crankshaft speed signal - Not corresponding with engine position P0045 = VTG turbo charger actuator - End position error or internal error P0046 = VTG turbo charger actuator position - Reference error. Place clean shop rags over the plugged oil holes (1 & 3 in the image above) to capture any potential oil. Take screenshots of the graph and sensor values approximately 2-3 minutes prior to engine shutdown. Connect the power source to a 120V source. A guide to taking screenshots can be found in THIS solution. Drivers learned that when you drop the rpms to 1200 thats when the engine will start to pull. The causes of a loss of power in the Paccar MX 13 can vary from faulty sensors to drumming on the injectors. The procedures below should ONLY be followed for repeat SCR fault codes. I was told to stay away from the Paccar but decided I would try it anyway and glad I did. Engine family Emission Standard Emission Standard ** SOLUTION ** The purpose of this article is to prevent unnecessary component replacement. I have a 2014 kw with a paccar mx13. Paccar MX-13 EPA 13 RANDOM CODE SPN 1231 FMI 2 Discussion in Heavy Duty Diesel Truck Mechanics Forum started by rshakin Jul 1 2019. - MX engine 0. Paccar (unofficial) MX Problem Solvers | I am having a power loss fault with my paccar mx 13 engine, I do not have any active code, the fault decreases considerably at night, any. It is so quiet and no problems yet at all. It is important for truck owners and mechanics to quickly diagnose and address these issues in order to restore normal operations. PACCAR has selected specific chassis with EPA2017 MX-13 engines for re-inspection. When on the scanner with switch on and engine off I'm getting a turbo boost reading of 30lbs. So, this fault code alone is not enough to fix it. Found this out while draining the tank due to CEL saying bad DEF. I'm not convinced its ONLY that. anyways drained flushed, cleared code truck back running. In 2021, PACCAR began offering the MX-13 engine to Pierce exclusively for the fire truck industry. Common Causes of Paccar MX-13 Loss of Power. Actuator Not Moving? Engine Losing Power ">Ask The Experts: Actuator Not Moving? Engine Losing Power. This EGR derate on a Paccar limits your engine power up to 25-40%. 487 27K views 2 years ago Dr, Paccar returns with another weird Paccar MX13 problem, On a 2018 KW the driver complaint is power loss or no throttle intermittently. 3/13/2017 Condition Vehicle is experiencing repetitive SCR (Selective Catalyst Reduction) Efficiency DTCs; P3818, P3830, P3997, P3928, and/or P3914. The PACCAR MX-13 engine brings efficiency and flexibility together into one, high-performance solution. Place shop rags underneath the brake capsule foot to. Paccar MX13 power loss Discussion in ' Trucks [ Eighteen Wheelers ] ' started by STS1SS, Aug 7, 2019. Selected chassis will have the camshafts replaced. Remove the poly V-belt from the temporarily blocked with fan and coolant pump drive as Page 79 Maintenance Procedures 2. Before long the flex joints on the exhaust are breaking. 2012 Paccar MX 13 issue!! : r/Truckers. Its a 13 speed I believe Eaton Fuller tranny. Check the wiring between the throttle position sensor and ECM for any corrosion or damage. (does not include fairing removal) Claim Type: F Vendor Code 86837 Quantity Part Number Description 1 2115624PE UL2 pump/EAS pump module 1 2115633PE UL2 doser/DEF dosing valve 1 2122909PE FILTER KIT-DEF PUMP, EPA17 PSB E222: MY2017 and MY2018 Chassis, PACCAR MX-11/MX-13 with DTC. Many factors can contribute to this, including an air leak in the intake system,. I don't see why the wastegate would open under a condition where it isn't building boost pressure, so I'm thinking the issue might be boost pressure sensor. P0562 = PCI ECU power supply - Data valid but too low on ECU (D420) pin (B60) or pin (B61) or pin (B62) P0563 = PCI ECU power supply - Data valid but too high on ECU (D420) pin (B60) or pin (B61) or pin (B62) P0567 = CAN communication - Message (CCVS) out of range, Cruise Control Resume switch from vehicle control system. ALL OTHER DIAGNOSTIC TESTS AND CHECKS MUST BE PERFORMED when diagnosing one of the codes above if the tests below do not immediately reveal an issue. Connect the power source to a 120V source. Aug 7, 2019 #1 STS1SS Bobtail Member 5 2 Aug 7, 2019 0 A little history we have an issue with a sticking wastegate piston. I have a 2014 kw with a paccar mx13. And an enhanced piston design has added features. So if you are losing power intermittently as well as having a significant. We have checked the charge air system it does. Here is Hello all, having an issue with a 2016 Paccar MX13 in a truck I just bought. The PACCAR MX-13 engine incorporates industry-leading design features that improve uptime, optimize fuel economy, reduce maintenance costs and maximize your return on investment. Place shop rags underneath the brake capsule foot to be removed. We have checked the charge air system it does not have any leaks. Power Steering Pump 14. The PACCAR MX-13 can be spec’d up to 510 hp at 1,850 lb. When a problem arises, you have 10 hours to fix the problem or else it goes into an EGR derate. The fault codes related to P1495/P1496 mean that the engine protection has been enabled causing the EGR to be disabled and the system to go into preventative safety measures. If anybody can give any suggestion as to what could be wrong with my truck it would be much appreciated. Optimized Weight + Fuel Economy Compacted graphite iron castings. Truck has power but it seems to have low oil pressure (lowest 15psi at idle), but no loss of power or rough running. The company made them watch a video from paccar to show them where the torque range is on a pull. Look for any aeration of the fuel on the suction side and the return side by installing a clear hose or site glass to monitor air bubbles. We asked the shop to do mains, bearings, oil pump and regulator to start, but shop declined, all or nothing they said. A loss of power in a Paccar MX-13 engine can be caused by a number of. Another commenter writes: "I have a 2015 Kenworth with a Paccar MX 13 engine. Try to recalibrate the throttle position sensor. Paccar MX13 Oil Pressure Regulator. 2021 PACCAR MX-11 Engine These new engine developments make Kenworth trucks more productive. A distinct click will be heard from the OCV when power is applied to it. With the launch of Kenworth's new T680 Next Generation truck model, also comes the 2021 PACCAR MX-11 and PACCAR MX-13 engines, giving even better performance and efficiency to Kenworth's Class 8 truck lineup. The loss in power will prompt you to seek service at a repair shop or dealer. With this engine, you won't have to stop for diesel for a long time because it is exceptionally fuel-efficient. The fault is likely tied to a EGR "fueling" derate that when active limits fuel, thus reducing power. DO NOT REPLACE EITHER NOx SENSOR FOR ANY OF THE ABOVE CODES. If you have questions about your VGT, or any other diesel engine. Notice the boost gauge shows a boost pressure loss, then increase at the same time. There seems to be no check engine light that alerts. Recently I have…">I have a kenworth with Paccar mx 13 engine. All of a sudden it loses power for a little bit and comes back again. Paccars MX13's will start pulling torque around 1200rpm. Loss of Power in Paccar MX13 Engines: What You ">Diagnosing Loss of Power in Paccar MX13 Engines: What You. 3/13/2017 Condition Vehicle is experiencing repetitive SCR (Selective Catalyst Reduction) Efficiency DTCs; P3818, P3830, P3997, P3928, and/or P3914. They never consider that the EGR cooler helps support the exhaust. Many factors can contribute to this, including an air leak in the intake system, low fuel pressure, or a clogged air filter. plenty of power and fuel milage went up 1plus mpg over my 2009 ISX 455 hp it starts right up at -20 degrees. Another commenter writes: "I have a 2015 Kenworth with a Paccar MX 13 engine. The PACCAR MX-13 Engine is built for the long haul. In order to comply with the strict Euro 6 emissions requirements, it features exhaust gas recirculation, together with SCR technology and an active soot fi lter. When the turbo finally kicks in it has tons of power again and pulls great. The PACCAR MX-13 engine brings efficiency and flexibility together into one, high-performance solution. With the belt tensioner pressure Air-Conditioning Compressor wire to the battery. com ">Paccar mx13 losing boost. In this video I revisit the Paccar M13 Power Loss issue with air leak complaint. Paccar (unofficial) MX Problem Solvers | I am having a power loss fault with my paccar mx 13 engine, I do not have any active code, the fault decreases considerably at night, any advice | Facebook Log In Forgot Account?. Paccar (unofficial) MX Problem Solvers | I am having a power loss fault with my paccar mx 13 engine, I do not have any active code, the fault decreases considerably at night, any advice | Facebook Log In Forgot Account?. I don't think our dealer has actually sold one of these crazy geared trucks for downspeeding yet. 2016 Paccar mx13 stop engine light comes on at 65 mph and boost drops to 20 psi max. Its a 13 speed I believe Eaton Fuller tranny. 6K views 6 months ago In this video I revisit the Paccar M13 Power Loss issue with air leak complaint. FIX-AS-FAIL Kenworth offers additional troubleshooting steps via SupportLink for fault codes P3818, P3830, P3997, P3928 and, P3914 for all PACCAR MX-13 EPA 2013 Engines. Removal ° The tensioner can be 1. Paccar EGR Disabled triggered SPN 411 P1495 P1496 Explainer. The filters are completely gutted both of them and we have replaced the bpv. Brochures; MX-13 Engine Brochure English; French; Spanish; EXPERIENCE THE POWER. HHP Manufactured Items Resources About Ask The Experts: Actuator Not Moving? Engine Losing Power? Common VGT Turbo Questions Today, we're taking a look at some of your questions from YouTube relating to issues with your Variable Geometry Turbochargers. Place clean shop rags over the plugged oil holes (1 & 3 in the image above) to capture any potential oil spray during the procedure. Diagnosing Loss of Power in Paccar MX13 Engines: What You Need to Know Paccar Mx 13 Loss Of Power. What causes P1496 to become active? This fault code is an indication that there is a problem with another fault code that triggers a derate. It may cause an intermittent lack of power that the driver may or may not observe. The PACCAR MX-13 engine incorporates industry-leading design features that improve uptime, optimize fuel economy, reduce maintenance costs and maximize your return on investment. Hello all, having an issue with a 2016 Paccar MX13 in a truck I just bought. Type; Coverage Duration; BASE ENGINE WARRANTY. relieved, remove the poly V-belt Drive and Coolant Pump Drive from the pulleys. Dr, Paccar returns with another weird Paccar MX13 problem, On a 2018 KW the driver complaint is power loss or no throttle intermittently. The Turbo Speed Sensor failure is typically intermittent. What do you guys think?" its Either Electrical or Mechanical. looking at the engine from the front the cams on the left bank had jumped one tooth out of time so fuel was not being burnt and coming. Another common issue with the Paccar MX 13 turbo is boost loss. I have a 2012 epa10 paccar mx 13 engine with really low power …. Start by checking your fuel system between the fuel tank in the pump for any restrictions or leaks. Here are just some of signs that your actuator is having some problems: Complete power loss Intermittent low pressure Overboost Low boost Turbocharger noise Flashing engine management light Fault codes ECU error symptoms control. Turn the ignition key on with the engine off, slowly press the fuel pedal down to the floor and then back up 3 to 4 times before starting the engine to calibrate. You need to hook up and troubleshoot the fault code. Start by checking your fuel system between the fuel tank in the pump for any restrictions or leaks. Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far? I have checked ant ecm for power and do not find any and when on snapon scaner the voltage shows 2. Paccar MX13 EPA13 Fault Code list description. The causes of a loss of power in the Paccar MX 13 can vary from faulty sensors to drumming on the injectors. These new engine developments make. Engine Losing Power? It Might Be Your Actuator. 2021 PACCAR MX Engines Unveiled: Gives Operators Better …. Look for any aeration of the fuel on the suction side and the return side by installing a clear hose or site glass to monitor air bubbles. MX-13 engine pdf manual download. 2021 12 new Paccar Spn Codes results have been found in the last 90 days. Paccars MX13's will start pulling torque around 1200rpm. T660 mx 13 paccar. The people I know that have them said they had to basically learned how to drive these motors. Inlet and Outlet NOx values should be within 40 parts per million (ppm) of one another just before the engine shuts down. Last week my boost started suddenly dropping. May 13, 2020 #1 zaroba Heavy Load Member 840 1,261 Aug 28, 2012 South East PA 0 Started happening about a week ago. A smaller, more efficient turbocharger boosts power and improves responsiveness. If this checks okay and you have consistent fuel supply pressure , check your air intake for any restrictions or leaks in your turbo and boost piping. See the Procedure section below. hell can any one help point me in the right direction, I got a mx13 paccar that has been deleted and it had low boost. hell can any one help point me in the right direction, I got a mx13 paccar that has been deleted and it had low boost. I have a 2013 kenworth with a paccar mx 13 and have no power at ecm would like to get wiring. When the fault changes to inactive the light goes away and the power comes back. 2021 PACCAR MX-11 Engine. The PACCAR MX-13 can be spec’d up to 510 hp at 1,850 lb. Have a slight misfire, Cylinder five contribution high code , also have had contribution low on 4 should I replace injector 5 or are these numbers. Wrench check engine light came on and the truck drives like I have 30k in the box, even when empty. The Paccar MX 13 is a heavy-duty diesel engine commonly found in commercial trucks. You need to hook up and troubleshoot the fault code. 1 04-20-2019, 05:58 PM hell can any one help point me in the right direction, I got a mx13 paccar that has been deleted and it had low boost. two fault codes p1496 and p3769. The best engine has become even better. E209 PSB E209: MY2017-MY2019 PACCAR MX11/13 with DTC P2579 and/or P1581 Page 1of 3. Here is the story, its kinda long so I apologize in Paccar (unofficial) MX Problem Solvers | Hello all, having an issue with a 2016 Paccar MX13 in a truck I just bought. Paccar (unofficial) MX Problem Solvers. I have a 2014 kw with a paccar mx13. The PACCAR MX-11 can now be spec’d with a higher horsepower rating of up to 445 hp at 1,700 lb. now a week later we are in derate that. I have a Paccar MX 13 epa 10. Have a slight misfire, Cylinder five contribution high code , also have had contribution low on 4 should I replace injector 5 or are these numbers. With cummins engine have experience loss of power to after treatment components and need to switch the fuses from 5 amp to 10 amp. I've not heard of many horror stories on the Paccar engines. Mechanic's Assistant: Are you fixing your truck yourself? What have you tried so far? I have checked ant ecm for power and do not find any and when on snapon scaner the voltage shows 2. You need to hook up and troubleshoot the fault code. All chassis built with Engine Model Year 2018 through 2020 PACCAR MX-11 (built through 12/24/2019) or MX-13 engines (built through 01/17/2020), could have a mismatch between service interval required for the installed Open Crankcase Ventilation Filter (OCV) filter and the service interval shown for the OCV filter in the operator's manual. Paccar mx 13 lose of power @ throttle no response 30. The Turbo Speed Sensor failure is typically intermittent. anyways one of our moron drivers decided it was a good idea to put some diesel in his DEF tank. View and Download Paccar MX-13 operator's manual online. have a kenworth with Paccar mx 13 engine. now a week later we are in derate that will not go away after flushing tank out once again and changing pump. Paccar MX13 Intermittent No Power. I have a 2012 epa10 paccar mx 13 engine with really low power. The truck pulls great through the first 6 gears but as soon as you shift into 7th and 8th gear, the truck has no power and turbo boost drops to about 10psi and won't kick up until about 1300_1500 rpm. Paccar MX 13 Turbo Actuator Problems A failed actuator can be due to a number of things. i removed the engine because id got a replacement then stripped the old one and as i thought it was a valve timing problem. 9 Litre PACCAR MX-13 engine uses state of the art technologies, fi rst class materials, extensive function integration and a heavy duty foamed wire loom to achieve highest reliability and durability. 487 27K views 2 years ago Dr, Paccar returns with another weird Paccar MX13 problem, On a 2018 KW the driver complaint is power loss or no throttle intermittently. Ask The Experts: Actuator Not Moving? Engine Losing Power. i have a simialer problem but i was getting neat fuel out the exhaust as well. It has low power and will not start making boost until 1400 rpm. Paccar Mx 13 Loss Of Power. It is a pleasure to help anyway I can. SOURCE: Suzuki Vitara V6, MAF sensor, white smoke. No matter what the conditions, this engine will get you to your destination with power to spare. FIX-AS-FAIL Kenworth offers additional troubleshooting steps via SupportLink for fault codes P3818, P3830, P3997, P3928 and, P3914 for all PACCAR MX-13 EPA 2013 Engines. The Paccar MX 13 turbo engine has a turbocharger that generates much power and torque, making it easy for trucks to tow and carry large loads. 9 litre Euro 6 PACCAR MX-13 engine uses ultra-modern common rail technology, a turbo with variable geometry and advanced controls for maximum efficiency. The PACCAR MX-13 Engine is built for the long haul. Look for any aeration of the fuel on the suction side and the return. Paccar MX 13 Turbo Actuator Problems You Need To Know">Paccar MX 13 Turbo Actuator Problems You Need To Know. Optimized Weight + Fuel Economy. In 2021, PACCAR began offering the MX-13 engine to Pierce exclusively for the fire truck industry. The causes of a loss of power in the Paccar MX 13 can vary from faulty sensors to drumming on the injectors. We spec Mx13s with 391 rears and 18s for super bs. The Paccar MX 13 is a heavy-duty diesel engine commonly. Diagnosing Loss of Power in Paccar MX13 Engines: What You. Notice the boost gauge shows a boost pressure loss, then increase at the same time. On the computer, it says data erratic and sometimes it says VGT Actuator 1. So if you are losing power intermittently as well as having a significant amount of air leak while sitting. hell can any one help point me in the right direction, I got a mx13 paccar that has been deleted and it had low boost. Posted by a private BulkLoads. No matter what the conditions, this engine will get you to your destination with power to spare. Paccar MX 13 Turbo Actuator Problems A failed actuator can be due to a number of things. Dr, Paccar returns with another weird Paccar MX13 problem, On a 2018 KW the driver complaint is power loss or no throttle intermittently. I have a 2013 kenworth with a paccar mx 13 and have no power…. Technical Information Bulletin. With the belt tensioner pressure Air-Conditioning Compressor wire to the battery. Paccar MX 13 Turbo Actuator Problems You Need To Know. It has low power and will not start making boost until 1400 rpm. I have a 2011 Kenworth t800 with a Mx 13 paccar. Chassis with MY2017-MY2019 PACCAR MX-11/13 engines. When the. Replaced fuel filters, air filter and fuel pressure regulator. Mechanic's Assistant: What's the make/model/year of your truck? Engine type? T660 mx 13 paccar. List of fault codes for Paccar MX13 EPA17 P0016 = Camshaft speed signal - Not corresponding with engine position P0017 = Crankshaft speed signal - Not corresponding with engine position P0045 = VTG turbo charger actuator - End position error or internal error P0046 = VTG turbo charger actuator position - Reference error. Part Numbers Videos How This Works Warranty Reviews Product Details We offer a remanufactured Paccar Turbo Actuator found in 2018+ MX-11 or MX-13 engines, EPA17 or newer , with HE400VG turbochargers. Diagnosing Loss of Power in Paccar MX13 Engines: What You Need to Know. SOLVED Drumroll stop working error by removing DPA5 drivers. Paccars are also not as mechanic friendly as other motors. paccar mx 13 and have no power…">I have a 2013 kenworth with a paccar mx 13 and have no power…. Stays on til I slow down or stop and everything goes … read more Mike Mcmillan Triage Tech/Shop Foreman Associates 625 satisfied customers What are the torque specs and tightening sequence for a. I just got loaded and was merging onto I-95 North in Baltimore, Md. There is not many independent shops that have knowledge about Paccars and sadly some dealers are lacking in that respect as well. The 12. Compacted graphite iron castings. Diagnosing Loss of Power in Paccar MX13 Engines: What You …. Notice the boost gauge shows a boost pressure loss, then increase at the same time. Turn the ignition key on with the engine off, slowly press the fuel pedal down to the floor and then back up 3 to 4 times before starting. Electronic Control Module (ECM) 16. Paccar MX13 stuck in limp mode. Excellent torque at low engine speeds and a high performance is available over a wide rev. 2021 PACCAR MX Engines Unveiled: Gives Operators Better MPGs, New HP. the truck will only make about 8psi and throws no codes. Check the warranty claim history to confirm. Try to recalibrate the throttle position sensor. DO NOT REPLACE EITHER NOx SENSOR FOR ANY OF …. As a result, passive/active DPF regeneration is disabled as well. Engine Losing Power? It Might Be Your Actuator. This EGR derate on a Paccar limits your engine power up to 25-40%. 24 Months / 250,000 MI / 400,000 KM / 6,250 Hours. 2021 PACCAR MX-11 Engine These new engine developments make Kenworth trucks more productive. Joined: Sep 2015. Paccar mx 13 lose of power. can you explain these faults? … read more Wayne Journeyman Vocational, Technical or Tra 5,765 satisfied customers On my 2013 kenworth t660 with paccar, speed sensor engine. Some chassis may also be eligible for valve guide seal replacement as indicated on the chassis list.