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Dt466 oil pump failure From clogging to misfiring, these issues can significantly impact the efficiency of your vehicle. My sources show a lift pump (which you have found and appears to be part of or connected to the fuel filter housing), and the fuel injection pump, which appears to be a mechanical engine-driven sort. Apr 21, 2020 · So, we have established that your engine is a 2009 DT466. 6L diesel engine is also known as the MaxxForce DT. I'm having fuel issues on my dt466 and I have no idea why. The pump sometimes leaks, the oil pressure regulator can get flaky, and the pressure sensor occasionally quits. Description SERVICE MANUAL International Engines DT466 (2004-2006) Aimed at: Workshops or Individuals. Clogged oil passages: Over time, oil passages can become clogged with debris, preventing oil from flowing freely throughout the engine. Mar 25, 2010 · There is a sensor on the high pressure oil rail that measures the oil pressure, you might be able to find a way to tee of that to read the pressure with a mechanical gauge. As the video shows there is a substantial leak on this manifold. International DT466E Low Engine Oil Pressure Diagnosis DT466E often faces sudden low oil pressure and failure to feed high-pressure oil pump at startup. Mechanic's Assistant: Great! The car Dec 13, 2006 · The oil pressure you report is LOW for that engine. Anyways I've got a 1997 International 4900 with the DT466e with approx. what do you guys make of that? problem is 333 code when under load or climbing long hills. On a DT466 in a 1660 combine the oil pressure is fluctuating around 5psi at operating temperature at high idle. Jun 13, 2023 · This article will cover the life expectancy and common problems of the DT466 engine as well as some of its features you should know. Then about a month ago, it wouldn't start without a touch of wd when 4400 dt466 2005 no start. It will start right up and then run from anywhere from 30 secs. Sep 10, 2024 · This article delves into the intricate world of troubleshooting common issues with the high-pressure oil pump in Navistar DT466/HT570 engines, offering valuable insights and solutions to effectively diagnose and resolve these problems. tried to crank it back up and wont build up oil pressure so we had it towed back in to our fleet and we Aug 8, 2024 · Have a 706 with a DT466 transplant. This CPA update allows the CPA HPOP test to monitor engine oil Oct 22, 2007 · Hey all, my first post here. I purchased the truck last month Feb 1, 2021 · International DT466 Oil Pump Problems - Low Oil Pressure, Fuel in Oil Videos - All Diesel Engine Videos Essentially, three components control high-pressure oil pump pressure: the pump, the sensor, and the control. Below, we explore the most critical sections of the Dt466e engine and their functions. Learn how oil condition affects both the fuel and engine systems. Also, the oil pump pick-up tubes are prone to cracking at the support bar inside the pan when used on rough roads. While there are a few reasons a high pressure oil pump (HPOP) could leak oil, the most common issue is it to leak past the threads and O ring on the ferry plug, found on the back of the HPOP facing the engine block. When you need to replace parts, you want to be sure the Navistar INTERNATIONAL DT 466 Pdf User Manuals. These problems can severely impact engine performance and efficiency. Fast Delivery. When you start a DT466E after an oil change it will start and run for a few seconds and quit then after a few seconds of cranking it will start again and run the oil pressure gauge will start to move at the same time. 1999 International DT466E Oil Pump Failure and No-Start Issue DT466E often faces repeated oil pump failures and zero oil pressure causing engine no-start conditions. It will react the same as it would if the oil pump is worn out, You might want to remove one filter and cut it apart looking for larger problems "metal". While the oil pressure regulator has been known to cause similar symptoms, it is usually limited to operation with HOT oil whereas the pick-up tube is a problem at any time. ICP pushes on a piston, forcing fuel thru the nozzle, when the solenoid is activated by the ECM (or IDM on some models). 2003 International 4300 with the 466, and have been having some issues. Cause • Leaking fuel injector or injector O-ring (A leaking injector sleeve or injector tip could cause contaminated engine oil, but would most likely be identified as a performance problem. Dec 3, 2020 · A DT466 high pressure oil pump leak is one of the most common issues found on these International engines. TamerX High Pressure Oil Pump 1842721C91 for International Navistar DT466, DT466E is built for 1994-2003 models. Question is how do I go about checking the timing on this pump? Nov 11, 2021 · See “DT 466 Performance Specifications” – Appendix A (page 595) or “DT 570 and HT 570 Performance Specifications” – Appendix B (page 619) for specifications, and enter data in spec column for rpm and oil pressure on Diagnostic Form. Then a simple test for the ICP sensor is to simply unplug the very front valve cover pass through connector and try to start the engine. Inspect the oil pump drive gear and ensure proper installation. The 466e is the new gen block that came out View and Download Navistar International DT 466 diagnostic/troubleshooting manual online. Nov 10, 2021 · International DT466 – ENGINE SYMPTOMS DIAGNOSTICS – Oil Pump Inspection 1. May 25, 2025 · Emission Control Complications: EGR and DPF issues affect engine performance. The information on this manual covered everything you need to know when you want to Jan 30, 2010 · After lomg search on TDG site I did not found any anwser how to setup timing with rotary pump. The bus was experiencing some sputtering when the bus was under a load like accelerating through the gears from a complete stop or driving uphill. ) • Cracked or porous cylinder head casting International DT466 engine specs and history. Additionally Dt466e is a reliable engine, but to maintain its performance, a clear understanding of its components is essential. Purchase yours at Accurate Diesel! Nov 9, 2024 · 2006 International 4300 dt466 running rough and dying intermittently Discussion in ' International Forum ' started by Benjafish, Dec 4, 2024. The CPA tool assists in diagnosing Hard Start / No Start / Rough idle and ICP pressure faults. We suspect the injector pump ate a little water. The plug- lower, front, inside, of the HPOP was leaking, and stripped. Customer: I have a '99 international 4700. Now, I can't get the truck to start. D. Duty section to maybe get a few more answers. DT466E repair, no start, won't start problems. Make sure your oil is clean and oil pressure is good. Mar 5, 2015 · I am working on an IH 4900 truck with a DT466E engine that was hard starting, so I used some starting fluid and it fired up and run for about 30 seconds and then shut down, I had service maxx hooked to it while it ran and the injector oil pressure was 930 psi. Jul 24, 2023 · What he said, injector o-ring or watch the oil exhaust of each injector for one dumping to much oil. Order a quality fuel lift pump for your vehicle. Aug 27, 2020 · Let it sit and pull the oil temp sensor out , located under the HPOP if no oil runs out then suspect an issue there due to that resovoir leaking back to pan The fuel lines @ fuel pump o rings tend to get try and leak/suck air you need to replace them (4 o rings look like bushings) May 23, 2015 · Jump to page : 1 Now viewing page 1 [50 messages per page] This Video Show How To Replace The High Pressure Oil Pump. e. The DT466E fuel pump is the critical heart of your International/Navistar diesel engine's fuel injection system. Was running fine then all of a sudden I started it up and it acted like it was starving for fuel. ) software with NEXIQ2 adapter. Runs beautiful and sounds perfect. Apr 17, 2018 · 2004 DT466 oil pressure issue Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Trucktek78, Feb 7, 2019. NOTE: If the engine is equipped with a Shrader valve, use the Fuel Pressure Test Adapter. no oil here would lead to lube oil system checks, but that would be for a NO start scenario. DT466E Oil pump. Solutions range from regular maintenance to specific part replacements. Just wondering how common it is for this engine to develop blow-by at this mileage? Also, at what point do I need to start thinking of having some serious work done on the MaxxForce DT Testing High Pressure Manifold With the right fittings from your local hardware store you can test the injection high pressure manifold that can cause diesel performance problems on a MaxxForce DT when it develops an oil leak. All 3 times same problem: the truck will be driving fine and all of a sudden the truck dies and will not restart. The ECM connections get corroded alot on those engines as well. By the same token, every engine has its natural quirks. This part is compatible with 1994-2010 models including DT530 and DT466, and 7. And How To Remove Or Replace The IPR Valve On A International DT466@dairleautoclassicrestorati6892 A blog about diesel engine diagnostic and repair. Possible causes in order of likelihood: leak in the oil manifold, leak in the oil side of the injectors, blocked or faulty high pressure oil regulator, failing high pressure oil pump, starvation of high pressure pump. 160,000 miles. Mechanic's Assistant: Do the headlights turn on? Is the battery fully charged? Customer: Yes. And paying those high OEM dealer prices only makes it worse. I know it can be an issue with the oil pump/filter/oil viscosity. Is there a way to test Aug 17, 2017 · I have a 1999 AmTran FE with a DT466E in it. When the oil gets hot, it thins out and cannot build enough pressure. Truck was put on the hook and stored in a warehouse for years. Mar 16, 2023 · Oil pump failure: If the oil pump has failed, it will not be able to pump oil throughout the engine, resulting in low oil pressure. Aug 2, 2022 · Concerned about some DT466 engine problems? Find out what you can do about these engine problems with the DT 466 straight from the experts! SUBJECT: Priming To Prevent Nozzle Failures Reference: Navistar TSI 04-12-01 R Priming Procedure to Prevent Injector Tip Failures The attached Navistar® service bulletin explains why it is imperative to avoid “dry starts” with Navistar DT466, DT466E, I530E and DT530 engines and presents the proper priming procedure to prevent nozzle failures (i. The most common problems I've encountered is issues with this high pressure oil system. Aug 23, 2015 · I posted on the combine forum,and was advised to also ask here. Jan 9, 2016 · Is the oil pump mounted behind the front crank pulley? 04. any thoughts on what we should do? Oct 24, 2012 · My 02 superduty started pouring out oil yesterday so I took her in and the mechanic is saying that my high pressure oil pump has failed. Common DT466 Problems and Failure Points The physical makeup of the DT466 and MaxxForce DT engines is simple yet burly in virtually every way. Shop HHP for a International/Navistar DT466 Oil Pump (1832092C92), Quality Diesel Engine Parts 1 Year Warranty. By understanding the symptoms and diagnostic techniques, you can effectively diagnose and s Jan 26, 2016 · Common DT466 problems and solutions Common mechanical problems with these engines are leaking liner O-rings, injector failures, and occasionally broken cam follower guides. The regulator could have crap in it on the back of the head but usually they will stall out. charged Print version. Also, on a DT, Heui system, having low oil pressure might produce issues. The Navistar / International IPR Valve is located on the back of the high pressure oil pump. Content: This electronic service manual (ESM), has been prepared with the aim of helping technical personnel to carry out more effective diagnostic, repair and maintenance work on these engines: Fully illustrated step-by-step instructions, with all their specifications . In frame rebuild done last year around June or august After that it would start Engine stalling on the 2006 International 4300 with DT466 often relates to the Injection Pressure Regulator (IPR). Sep 6, 2012 · If the injector O-rings leak it's a different complaint- if the center O-ring leaks, it pumps the contents of the oil pan into the fuel tank. Low Profile 250 hp Allison World Jul 16, 2016 · 2002 dt466e deadheaded hpop to test, it gets 4600 psi while cranking, but immediately drops to 0psi as soon as cranking stops. Leaking liner O-rings are sometimes seen on high mileage engines and allow coolant into the crankcase, causing high oil levels and/or steam from the crankcase breather. Common results of International IPR valve failure include poor idle, stalling, and even a no-start condition. A mechanic can check the oil pump to see if it's working properly. 500 oil pump gerotor in a DT466. 6 Navistar International DT466 diesel engine?Subscribe to DGHD: https://bit. - Maintenance tips are provided such as checking Mar 12, 2022 · In the old days, fixing engines was fun. May 13, 2024 · At first glance the mechanic thought it was the oil pump, but after steaming underneath and letting it run some, he found a leak coming from the air compressor. We checked with a manual gauge as well as the dash gauge-both are the same. 3L engine sizes. Using the International DT466 Engine Diagram for Diagnosis and Repair Feb 9, 2023 · 2005 international 4300 dt466 no base oil pressure Discussion in ' International Forum ' started by Cjhill954, Feb 9, 2023. That said, they do have their fair share of problems, most of which primarily surface with age, neglect, or abuse. Quality Parts, 2 Years Warranty. After repair, verify the pump’s alignment marks with the camshaft gear. By following these troubleshooting tips, you can address these problems and keep your engine running smoothly. Might not be a problem with all styles of pumps but I have ran into it several times. • Inspect the lube oil pump housing and plate for gouging, deep scratches, or a discolored hot-scored appearance. Nov 27, 2009 · I have a 2000 IH 4700 w/DT466e. Premium quality, fast shipping, and in stock. Mechanic's Assistant: What is the make, model, and year of your vehicle? Customer: It's a 2004 International 4300 with a 466 DT engine. Find Mechanic jobs he Mar 7, 2022 · The Navistar International DT466 7. • If high-pressure pump gear is tight, but the high-pressure pump cam does not rotate, suspect damage in the high-pressure pump. Removing the injectors involves removing the valve cover and gasket, then you have to remove the HP oil rail before tackling the Torx bolts holding the injectors in Jan 4, 2011 · If the pressure relief valve is stuck the oil pressure will go up steadily as the RPMs go up. Been trying to figure out why so low. ly/SubDGHD | Merch: https://debossgarage. When it fails or underperforms, it leads to hard starting, low power, excessive smoke, poor fuel economy, or a complete engine stall. I guess this topic deserve to be a separate. We have remanufactured DT466E & DT466 high-pressure oil pumps for your Navistar / International engine applications. But doing a little reading I found that the injector "pucks" can leak and cause this problem. I'd put a clear line or run a line from the return to a bucket and see if there is air in the fuel. Let me know if you need pictures. It then dies, but will start back up and do the same thing. Nov 21, 2008 · An oil leak was noted on our 98 4700 International with a DT466e. The oil pressure regulator, located behind the oil filter bas in the side of the block, are prone to sticking with age. Jun 23, 2016 · I have a 2005 dt466 international truck came in for service and we changed oil and all filters truck ran great for a 100 miles and then starting losing power and then completely shut down. Note: To inspect high-pressure pump cam, the fuel pump must be removed. Then after a little more time, he noticed there was also some leakage from the rear front/timing cover and called me back again with the news. Nov 11, 2021 · • Failed fuel pump • Failed high-pressure oil pump (can not operate fuel pump) Aerated fuel • Failed seal for inlet fitting in fuel filter housing • Supply filter or water separator leaking • A loose fuel line on the suction side of the fuel system can ingest air into the system and cause low fuel pressure (most noticeable under load). E. Have another 466 that is far from new t Nov 11, 2021 · • If air is released, and you can now pump the primer hand pump, go to “Aerated Fuel” (page 104) in this section. Feb 1, 2021 · Is your International DT466 showing signs of low oil pressure? Fuel in the oil? It may be time to replace your HEUI Oil Pump. Metal shavings in the IPR indicate internal wear, causing erratic fuel pressure. Feb 11, 2009 · In reply to a question of 414/436 lifters, there was discussion of the oil pump and front cases. com/toolbox/international-dt-466e-engine-start-oil-pressure-problem/. In today's Product What You Will Learn: Understand the role of the HEUI oil pump in your DT466’s high-pressure system. Replace the high-pressure pump and test. Since the oil has this dual purpose, it needs to be changed on time. after Mechanic's Assistant chat Customer: I have a 1998 4900 with dt466e. The fuel system includes injectors, a high-pressure oil pump, and a fuel filter Mar 5, 2015 · I replaced sensor today but no start, Zero oil pressure for engine and high pressure pump. Jun 12, 2011 · I have a 1999 IH DT466E that will not stay running. The idle pressure is only 18 and high idle is only 50. For the 2004 emissions model year engines the Leak Detection Pump Tool is used in place of the Under Valve Cover (UVC) Leak Test in EGED 290 1's Low ICP System Pressure test. Nov 12, 2021 · If ICP pressure is still below specification, replace the high-pressure pump. , split or cracked tips). Also for: Maxxforce 9, Maxxforce 10. It has a recurring problem with Injector o-ring failure (average 20K miles) - it logs a 333 code for low actuation pressure. Make sure you have enough time. Despite their terrific reputation for reliability, the DT466 does suffer from a few common problems with the injector return lines and emissions-related electrical components. Unlike dry-sleeve engines, the cylinders contact coolant directly, providing superior heat transfer and making rebuilds far more straightforward. If the top O-ring leaks, it's usually a hard start cold (extended cranking) along with an elevated IPR command, because the oil bleeds out of the HP oil rail while it's parked. Aug 3, 2010 · I have a customer with a 4700 IH with a DT466E. I hooked 100 psi of air up to the TamerX High Pressure Oil Pump 1882258C93 for International Navistar MaxxForce DT, DT466 is built for 2007-2010 models. (( Introduction Mar 3, 2025 · The hand primer pump isnt that great and wouldnt or do much, got a new one and it doesn’t do much good either even after 100 pumps. Mar 8, 2014 · The oil pump is crank driven and has a direct passage to the high pressure oil pump reservoir. I have a truck with a 1995 dt466 NGD all mechanical. If it starts, then the sensor is bad. Replaced the prime pump, running strong again. " no sputtering, nothing Jun 30, 2010 · Sometimes the engine stops in the perfect spot where the lift pump is on the top of the cam and won't pump manually. and yesterday it wouldn't get it's prime back. Clean engine oil and good filters are a must. Nov 13, 2015 · We are having our 2006 4300 (DT466) towed for the 3rd time. Apr 21, 2008 · The symptoms are typically rapidly changing oil pressure while driving, hard starting, loss of oil pressure. See the full story here https://www. Your Navistar/International DT466/I530 works hard. Home » Navistar HEUI High Pressure Oil Pump Failure We know how frustrating it can be when your equipment fails and you’re facing down time and lost profits. removed HEUI output line and cranked no oil, removed engine oil pressure sensor from engine block and cranked no oil. Nov 26, 2023 · You will be fine with a dt466e. The part that connects to the engine is shaped like a triangle, and installed upside down. For no oil pressure on a DT466E 2006, despite new high-pressure and engine oil pumps, check for blocked oil galleries or a stuck oil pressure relief valve. Content: This electronic service manual (ESM), has been prepared with the aim of helping technical personnel to carry out more effective diagnostic, repair and maintenance work on these engines: Fully illustrated step-by-step instructions, with all their specifications. Icp, injectors, and o-rings are new as well, starts right up whether sitting for 4 days, or hot. MaxxForce DT engine pdf manual download. OEM factory engine (mechanical) service manual for the 2004-2006 DT466, DT570 & HT570 engines. Bosch P3000 pump. Diagnosing issues accurately, performing timely repairs with high-quality Aug 7, 2007 · My uncle has been having a problem with his international tandem truck. The problem gets worse as the engine warms up and the oil thins out. This rebuild task is very involved even for just removing and replacing the injector system. Jan 13, 2024 · How can I identify a failing high-pressure oil pump in my DT466 engine? Common issues include EGR valve failures, oil leaks, and high-pressure oil pump problems. NOTE: The "Version 5" CPA software release coincides with an Essential Tool shipment 12-999-01-07 (November 2014). Additionally, since the truck is used on a farm, it's consistently operating in higher temperatures. I cracked the lines and I am getting fuel to the pump from the primary Jun 27, 2023 · Injection pump failure is a less common problem with the DT466, but it can be very costly to repair. Just think of the extra cranking it would take to get the engine started if this oil had to go through a filter? Nov 2, 2016 · 06 dt466 no base oil pressure - School Bus Fleet Magazine Forums Dec 28, 2015 · There is an oil temp sensor just above the HPOP (high pressure oil pump), un plug and loosen this sensor, oil should seep out of the threads, this is the oil reservoir for the HPOP. I have the pump on the bench now, and I can helicoil the hole- but I suspect this plug/rod had a spring and plunger on it and is a pressure relief valve of some kind. They use the Hpop system like the power stroke engines and the c7 cat engines. Replacing the injector o-rings isn't that big of a deal - there are lots of how to write-ups on it if you decide to go ahead and do it. Mar 2, 2024 · I have been working on a 1998 International truck with the DT 466E engine and having nothing but problems. At startup, steady stream of oil is leaking from bottom of high pressure oil pump. Description SERVICE MANUAL International Engines DT466 & DT530 (1999-2000) Aimed at: Workshops or Individuals. I did have to replace the check ball also as it was all mangled, strainer was replaced but pretty clean. I would smell for fuel in the crankcase too. • If unable to work the pump after releasing pressure from the fuel test valve, repair the fuel pump primer. This is usually caused by contaminated fuel and can lead to decreased performance and increased emissions. Apr 29, 2015 · DESCRIPTION This document describes the diagnostic process for the high pressure oil system utilizing the CPA tool. The DT466E’s high pressure oil pump is timed to the camshaft; incorrect timing prevents proper fuel injection. Proper grounding and clean connectors are essential to maintain accurate ICP readings and engine performance. - Common problems include fan clutch bearing failures, radiator damage, and injector sleeve issues that can allow fuel in the cooling system. ipr is new, and commanded close manually with 12vdc applied to pigtail. It’s best known for its use in the International 4300 medium-duty trucks. We inspected the regulator and it was smooth I have a 1998 4900 with dt466e. Oct 6, 2018 · It needs oil pressure to activate the injectors. A few weeks ago the engine started and ran fine, no issues. High oil pressure in the DT466 at full throttle can result from a faulty oil pressure relief valve or clogged oil passages. Out of frame all new guts except cam and bearings which checked out good. There are updates for it. They are saying that the part alone is $800. I got planty of them. New high pressure oil pump. If it sits a few days it loses it's prime. I've Mar 22, 2010 · Jump to page : 1 Now viewing page 1 [50 messages per page] Dec 9, 2015 · Either there is a massive leak, pump failure, IPR failure or simple ICP sensor failure. However, many simply know it as The Legend. after loosing several quarts it stops (or at least slows to a drip). Could 1066 puller reply with a part number or application and also which combine had the front case I feel that if it were the low-pressure oil pump or the pickup tube, the issues wouldn't be sporadic with long intervals between problems. We had oil dripping off of the ferry plug on the bottom engine side of the pump and found that the hole threads were stripped. Mar 27, 2019 · DT466 base oil pressure so low - School Bus Fleet Magazine Forums Feb 21, 2008 · Alright all, I've decided to move this up to the Med. Feb 27, 2015 · have a 01 service truck that's has high pressure oil pump replaced 2 yrs ago, an cam sensor, just had injector cups replaced,new fuel trainsfer pump, me hand fuel primer pump, trucks hard to start some mornings kinda acts as if its fuel pressure leaks down over nite,,,an some mornings may Nov 20, 2008 · I really have enjoyed reading some of the threads and the vast knowledge you guys seem to have. I checked today with a IH truck dealer and they couldn't find the 1. Am I right? The following lists important Technical Tips that will help you locate and repair common problems on MaxxForce Engines and DPF/SCR Systems. Understanding these problems enhances longevity and performance. A well-structured parts diagram helps identify key elements, locate potential issues, and streamline repairs. I connected the ServiceMaxx Pro and reads a code for IPC unable to build during cranking. Oct 28, 2010 · ICP is Injection Control Pressure, a measurement of how much OIL pressure the High Pressure Oil Pump (HPOP) is providing to the injectors. Sep 13, 2010 · The oil is under enough pressure, that if the leak is sufficient, the oil will back up to the fuel filter area, where it will stain the filter. Don’t risk the health of your DT466; buy high-quality aftermarket 1822326C93 Oil Pump from America’s trusted diesel engine parts supplier. I pulled the fuel filters and the primary was full but the secondary filter was sucked down. Jul 15, 2016 · We just rebuilt a 466 and the oil pressure is very low. Customer: I replaced the high-pressure oil pump, but I'm experiencing no-start issues with my DT466 high-pressure oil pump. Apr 13, 2025 · The wet-sleeve design proved particularly important to the engine’s reputation for durability. Common Problems With DT466 Engine One of the most notable problems with the DT466 engine involves the fuel system. View online or download Navistar INTERNATIONAL DT 466 Diagnostic/Troubleshooting Manual, Service Manual Feb 27, 2009 · Hey all, Can't seem to figure this one out myself, so I figured I'd try here. Since the pickup tube and screen appear clean, next inspect the oil pump behind the crank pulley. A week later I tried starting it and I'm still trying 3 weeks later. Forum for diesel and truck repair problems. At Highway and Heavy Parts, you’ll get a Oil Pump manufactured in an ISO 9001:2015 certified facility, ensuring quality and consistency for your International/Navistar DT466. Mar 18, 2009 · I've had fuel pumps wich are located on the back of the High Pressure Oil Pump do that. I used to use a porta-power pump full of engine oil and remove the oil line from the HPOP and pump about 3000 psi of oil to it and see where it is leaking out. For best diagnostic results use Navistar Engine Diagnostic (N. On a dt 466 e i took out bottom bolt on oil pump because it was leaking replaced o ring put back in and did this on both No oil pressure and no injection pressure usually indicate oil pump failure or blockage. The plug on the bottom of my high-pressure oil pump failed, so I replaced it with a longer threaded one and a new check ball. Cooling system problems. See what the oil looks, smells, and taste like. Any tips? Mar 18, 2014 · Search this forum Printer friendly version E-mail a link to this thread Feb 22, 2014 · They use high pressure oil to pressurize the fuel in the injectors. Oct 3, 2007 · I have '95 International with the DT-466 that is not running right. This Factory Service Repair Manual offers all the service and repair information about Navistar International DT466, DT466E, DT530, DT530E and HT530 Diesel Engines. It turned out the “prime pump” went bad, was leaking air. Every time it occurs (code 333) I deadhead the pump and check it for pressure - it's develops 4500psi - which is above Jun 27, 2004 · DT466E High Pressure Pump Oil Leaks - School Bus Fleet Magazine Forums What could possibly be wrong with the 7. Call our parts specialist at 888-642-6460. 6L and 9. Well, maybe not taste. International DT 466 engine pdf manual download. Low oil pressure around 5 psi at idle and 15-20 psi at speed can stem from worn front cover seals causing internal leaks. Download Complete Service Repair Manual for Navistar International DT466, DT466E, DT530, DT530E and HT530 Diesel Engines (2000-2004). mechanicshub. The truck was running perfectly fine and broke Jun 15, 2024 · If your high pressure oil pump is bad, you may experience a loss of power in the engine, hear knocking sounds under the hood, notice a rise and fall in speed with RPMs, and see more exhaust coming from the tailpipe. Also for: International dt 570, International ht 570. Ensure the high-pressure oil pump timing is correct. Apr 3, 2014 · All Forums Professional Garage Enter Forum: Professional Garage Maxxforce DT with extended or no start New Topic Reply to Topic Printer Friendly View and Download Navistar MaxxForce DT operation and maintenance manual online. Issues here can range from clogged fuel filters to malfunctioning injectors. to several minutes. Buy Rebuild Kits For International DT466 Engine From HDKits. It is absolutely Sep 12, 2024 · When it comes to Navistar DT466 fuel injectors, troubleshooting common problems is essential to ensure optimal engine performance. 5 Silver 3500 Quad Cab, Long Bed, Dually, 4X4, NV 5600, Intake Horn, Bully Dog Triple Dog, High Idle, FASS 150/150And A MANIAC Behind The Wheel! Is your International DT466 showing signs of low oil pressure? Fuel in the oil? It may be time to replace your HEUI Oil Pump. Used to start and run beautiful, probably the best running dt I've driven. 00. I have replaced the fuel filter on the drivers side, and the high pressure oil pump is also new last May 9, 2021 · My friends bus did something similar but it happened at idle, not on the highway. This manual covers mechanical service, repair and overhaul of the engine out of the chassis and is intended for professional mechanics. Great Prices. You have room to work and there were fewer parts that went bad. This is a mechanical system service manual only covering torques, maintenance, diagnostics, repair & overhaul. Fuel pressure on the rail is 10psi Removed line into mechanical View and Download Navistar INTERNATIONAL DT 466 service manual online. It's firing weak on number one cyl and studders on accelleration. This downloadable service manual provides detailed engine-out overhaul information for 1993, 1994, 1995, 1996, 1997, 1998, 1999 DT408, DT466, and DT530 diesel engines with Bosch “P” pump mechanical fuel injection (non-electronic). Oct 26, 2023 · I've replaced the fuel lift pump on at 2005 International DT466 twice now. After I threw a little hissy fit, I was glad we found it in the shop rather than it popping out driveing down the road. You can’t afford to be down and you need the parts now