Dt466e Fuel Pressure Test, 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 I have a 1999 IH DT466E that will not stay running. If your engine has the test fitting at the top the fuel filter cap, you can check there, if not, there is a schrader valve near the front the intake manifold at the left front of the engine. • If the fuel is aerated, go to “Alternate Fuel Source Supply to Fuel Pump” (page 106) in this section. I tried to get one last week and was Mar 24, 2012 路 DT 466 Diesel Engine DT/DTI/DTA (C Engine) Fuel Pressure Test with a Robert Bosch 'MW' and 'A' Fuel Injection Pump. I replaced my ICP sensor on my dt466e engine to solve error codes 164-4 and 164-10 DT466 530 (2000-2003) Diagnostic Manual (EGES215). I assume this is a fuel problem, but what is the problem and where do we start? Thanks in advance if anyone has done this one. It is only reading 40 lbs at idle and it dips down to 34 or so when accelerating. Fuel pressure should be like 60 or 70 psi I think. I am guessing the DT466 is the same. The regulator could have crap in it on the back of the head but usually they will stall out. Explore DT466 engine problems: head-gasket leaks, injector-rail issues, IDM faults, and solutions for 2006–2007 International 4300 DuraStar trucks. In this clip, we’re manually testing fuel pressure at idle on a DT466 engine to verify the health of the fuel delivery system. Description SERVICE MANUAL International Engines DT466 (2004-2006) Aimed at: Workshops or Individuals. Boost pressure loaded while driving: actual 15 scanner 17-19 Fuel delivery pressure @ idle: actual ~56 scanner 56 EGR: blocked off for diagnosis Boost leaks: no (pressure checked charge air cooler with piping) Exhaust back pressure @ idle: actual~0 scanner ~12 Exhaust back pressure loaded not driving: actual 25 scanner ~35 Tests completed: DT570 Engine Pressure Sensor Navistar Maxxforce Fuel Pressure Sensor - Replacement For DT466E & DT570 Engines Fuel Pressure Icp Sensor Navistar Maxxforce Dt466e 2004-2007 $11 Add to Cart They use high pressure oil to pressurize the fuel in the injectors. We never seem to get the same 1998 International 4700 DT466e - Fuel pressure test (*UPDATE - IT RUNS - SEE VIDEO in DESCRIPTION) The Japanese Method to Clean Your Oxygen Sensor Without Killing Sensors Over Time Looking For Dtc Trouble Code List For 98 Ih 4900 Dt 466e In some of the older buses with the DT466E in them the primer pump housing has a small plastic ball that acts as the check valve. - Common problems include fan clutch bearing failures, radiator damage, and injector sleeve issues that can allow fuel in the cooling system. this is available. Search this forum Printer friendly version E-mail a link to this thread If you have the test fitting on the fuel filter cap, you can check for pressure there too. I just checked one of mine because It was having a running issue and the pressure ran between 40 and 50lbs. . Beans Diesel Stage 1 injectors, 5 position chip, homemade intake, 5 in. To clarify, are you getting fuel in the line after the filter housing just before the pump? Are you getting any pressure/fuel from the test port where the clear line is? Yes, if I pressurize the tank, fuel sprays out of the line just before the pump if I crack it. If the reading is good then you should not have a problem with any injectors. • As fuel pressure is relieved, a steady stream of fuel, without air from the fuel pressure test valve, means that air is not in the fuel system. International DT466 – PERFORMANCE DIAGNOSTICS – Test Procedures – Fuel Pressure and Aerated Fuel Purpose To check for correct fuel pressure and aerated fuel • Ask the operator if the amber WATER IN FUEL lamp was on during vehicle operation. - Maintenance tips are provided such as checking School Bus Fleet Magazine Forums View and Download Navistar MaxxForce DT diagnostic manual online. pdf - Free download as PDF File (. It then dies, but will start back up and do the same thing. Used with the fuel pressure test fitting for easy connection to measure fuel pressure. straight pipe exhaust. I've had fuel pumps wich are located on the back of the High Pressure Oil Pump do that. See How Easy It Is To Change A ICP Sensor On A DT 466 International Engine @dairleautoclassicrestorati6892 #truckmaintenance#truckrepair#injectorproblem SERVICE MANUAL INTERNATIONAL® DT 466, DT 570, HT 570 DIESEL ENGINE (S/N 2000001 AND ABOVE) FORM EGES-265-2 2004 MODEL YEAR AND ABOVE View and Download Navistar INTERNATIONAL DT 466 service manual online. It will start right up and then run from anywhere from 30 secs. We're getting 47psi. As fuel pressure is relieved, a steady stream of fuel without air bubbles indicates the fuel is not aerated. The high pressure pump only pumps oil. The difference between the two is that the DT466 EGR engine does not have a fuel return to the tank, The Maxxforce DT does have a return to the tank. 1998 International 4700 DT466e - Fuel pressure test (*UPDATE - IT RUNS - SEE VIDEO in DESCRIPTION) When Carjackers Mess With The Wrong Car | Dashcam Instant Karma #2 This article will explain International DT466E Problems. The most common problems I've encountered is issues with this high pressure oil system. Since the oil has this dual purpose, it needs to be changed on time. The icp is between 800 and 900 psi while cranking, fuel pressure is On the late model (2000 and up) DT444 engines the oil pressure is used to power the fuel injectors, through a High Pressure Oil Pump (HPOP). the gauge did bounce wildly but that is normal because it is a mechanical fuel pump. View online or download Navistar INTERNATIONAL DT 466 Diagnostic/Troubleshooting Manual, Service Manual International MaxxForce DT High Pressure Hpop Leak Test Tool Kit This will work with all MaxxForce DT, 9, 10, DT466 and DT530. Dt466e fuel pressure issue oifla Oct 14, 2025 air in fuel dt466e fuel pressure fuel pressure regulator lift pump 1 2 Next Oct 14, 2025 #1 OI Monitor the following parameters during one test drive: • Boost Pressure using EST • Fuel Pressure using EST (optional, or mechanical gauge) • ICP and BCP using EST Monitoring Engine Parameters using EST and Fuel Pressure Gauge Purpose To verify engine performance at full load and rated speeds by means of maximum boost, minimum fuel International DT466 – HARD START AND NO START DIAGNOSTICS – Test Procedures – Fuel Pressure and Aerated Fuel Purpose To check for correct fuel pressure and aerated fuel NOTE: Do the following: • Ask the operator if the amber WATER IN FUEL lamp was on during vehicle operation. This kit can be used with any engine application that uses a Schroeder valve to access the fuel system. ** UPDATE - IT RUNS GREAT NOW! SEE UPDATE VIDEO • DT466e - WARNING! Aftermarket IPR not so g ** Show less To check fuel pressure on the DT466, locate the fuel pressure test port near the fuel filter housing. Another way is to remove the cover off the air cleaner housing and have someone start the engine. The older, non-EGR DT had a fuel pressure regulator on the fuel rail at the back of the head, which went back to the tank. Maybe check valve on fuel rail tank return is hosed (no pun). MaxxForce DT engine pdf manual download. A kit for fuel system diagnostic procedure here (Hard Start and No Start Diagnostics > Special *Follow Test Procedures > Fuel System) *The 2013 OBD version of the linked above and later in this article Explore DT466 engine problems: head-gasket leaks, injector-rail issues, IDM faults, and solutions for 2006–2007 International 4300 DuraStar trucks. Use a gauge rated for diesel systems to measure pressure; typical range is 15-25 psi at idle. Aug 1, 2013 路 That seems a little low. Hard starting problem. I have replaced the fuel filter on the drivers side, and the high pressure oil pump is also new last How To Test DT466 Injectors One method will have you hooking up a psi gauge to the system and testing how much pressure you have inside. 1996 to 2015. Also for: International dt 570, International ht 570. 40psi is enough to start. Any ideas? This document provides information about the Navistar DT466E and Detroit Series 40 diesel engines, including: - The DT466E was introduced in the late 1990s and is similar to the 530E and Detroit Series 40. The primary reason for checking fuel pressure is a performance complaint which could be caused by low fuel pressure or restricted flow. • If fuel pressure is in specification and fuel is not aerated, do not continue with this test. Maybe check valve on fuel rail tank return is hosed (no p DT 466 Diesel Engine DT/DTI/DTA (C Engine) Fuel Pressure Test with a Robert Bosch 'MW' and 'A' Fuel Injection Pump. Symptom Oil contaminated with diesel fuel will cause the oil level in engine to increase. 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. • An erratic air/fuel mixture surge suggests that air is in the fuel system. International DT466 – HARD START AND NO START DIAGNOSTICS – Test Procedures – Engine Cranking Purpose To determine the following: • Does the crankshaft rotate? • Does the instrument panel receive a signal from the Electronic Control Module (ECM) and is rpm sufficient? • Is oil pressure sufficient? • Is fuel getting into the Manual fuel pressure test is your next step. Start by verifying the lift pump output and replacing the fuel filter housing regulator if needed. INTERNATIONAL DT 466 engine pdf manual download. Even the hand primer pump should be able to build up to 60 psi and get hard. to several minutes. 03 IHC 4300 DT466 how do you test fuel pressure. (( Introduction -Most low fuel pressure complaints are caused by a worn fuel pressure regulator valve & spring. It drops off quickly to 25psi when cranking stops. I have an international dt466e that will not start. Are you referring to the pickup tube? 1996 F250, 219K miles, manual tranny. ) • Cracked or porous cylinder head casting DT466 ENGINE FUEL PRESSURE TROUBLESHOOTING 馃獩馃敡 INTERMIDIATE SOLUTIONS 6. No codes in the computer Did an injector test- no problems Tested fuel pressure today at the filter. This is a key step when diagno Navistar INTERNATIONAL DT 466 Pdf User Manuals. Any ideas? The fuel pressure test kit is used to diagnose the fuel supply system. Also for: Maxxforce 9, Maxxforce 10, Maxxforce 11, Maxxforce 13, Maxxforce 15. txt) or read online for free. 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. Feb 21, 2008 路 Fuel tank dip tube? This is in my 74 F250, so the fuel tank is totally different. The pump sometimes leaks, the oil pressure regulator can get flaky, and the pressure sensor occasionally quits. Fuel pressure regulators are available for either engine. When measuring fuel inlet restriction, the fitting is installed at the diagnostic port (inlet-side) of the fuel filter housing. Aftertreatment Symptom-Based Diagnostic and Inspection Manual. As I recall, there is a transfer pump for fuel that bolts onto the high pressure pump. If you pinched off the return line and that didn't help the pressure then I would say you need to replace the pump but good luck finding one. An EASY way to test for worn thru fittings and fuel hose is to take your blow gun, REGULATE an air supply to like 10 PSI, then blow air into the tank from the vent hose. 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. The International DT466E engine, renowned for its robust performance in commercial trucks, faces its The fuel test fitting is used to measure fuel inlet restriction or fuel pressure. How can I diagnose fuel injector problems in a Navistar DT466 engine? Diagnosing fuel injector issues in a Navistar DT466 engine involves performing visual inspections for leaks or clogs, conducting fuel pressure testing to ensure proper fuel delivery, and utilizing electronic diagnostics to pinpoint specific injector malfunctions. The Star Products TU-32-3 International Diesel Fuel System Test Kit is a versatile tool that performs pressure and restriction testing on fuel systems for International engines VT365, T444E, DT466, DT530, and DT570. Fuel can flow past it when you're using the primer pump but the plastic ball is supposed to prevent fuel from flowing back to the fuel tank. Heui pressure good, over 1000 during cranking. Oct 14, 2025 路 Dt466e fuel pressure issue oifla Oct 14, 2025 air in fuel dt466e fuel pressure fuel pressure regulator lift pump 1 2 Next Oct 14, 2025 #1 Nov 11, 2021 路 International DT466 – HARD START AND NO START DIAGNOSTICS – Test Procedures – Fuel Pressure and Aerated Fuel Purpose To check for correct fuel pressure and aerated fuel NOTE: Do the following: • Ask the operator if the amber WATER IN FUEL lamp was on during vehicle operation. Fuel pressure drops at the Schrader valve can stem from a failing lift pump, faulty fuel pressure regulator, or clogged fuel filter. 12K subscribers Subscribe Manual fuel pressure test is your next step. The coupler can be used with the engine oil pressure test port for an easy connection to measure engine oil pressure or to take an oil sample. pdf), Text File (. shjc, zclk, ejfdl, fytw, uwauyd, cqacn, 8updyk, zdlv, s7yntb, h1gzr,