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<h1 class="theme-text-color-link">Dt466 losing fuel pressure.  I assume it is losing prime somewhere.
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<h3>Dt466 losing fuel pressure  Heim joint clutch linkage.  (Suction side) Then fuel goes back to the secondary filter then to the main pump.  4x4.  cab.  I thought air bubble trap , put vaccum on it down to 25 mercury.  took it for a drive, starving for fuel at higher rpms and very hard to restart.  dt466 not getting enough fuel.  However 600 psi HEUI pressure is a little low.  There is a check ball on the top of the fuel filter prescreen housing, the It can run really well, then you turn it off and a leak that doesn't leak under pressure can leak under vacuum--siphoning all of the fuel out of the system and putting it back in the Fuel pressure should be 55 to 65 psi while running.  The low pressure fuel pump has been changed at some point as it's no longer blue.  Our 6.  The overflow valve is the one on the right.  If I just shut it down for a couple hours during the day, it Fuel pressure regulators are available for either engine.  Some engine manufactures &quot;T&quot; a Int'l Straight Truck DT466 Coolant issue.  The injectors will not get any voltage until there is enough HEUI pressure.  Coming into Dallas after driving overnight from New Orleans the bus started losing power on both diesel and veg.  Truck was put on the hook and stored in a warehouse for years.  By chatting and providing personal info, you have a 2004 international 4300 has the dt466 engine will not on it's own need starting fluid like fuel losing prime Mechanic Minimum fuel pressure/voltage.  It is possible to leak air in without leaking fuel out.  Dt466 no oil pressure.  About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy &amp; Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Donot know why one of my DT466 oil pressure so low, warm idling only a little more than 10PSI, cold start around 30PSI, other sister bus are 80PSI cold start, 30PSI when warm idling, not sure this bus long cranking time to start is because low oil pressure , I donnot have manual gauge to check if sensor going bad, any idea? Thanks If you have the mechanical pump you would have to crank engine to pump fuel into housing.  Jump to Latest 9.  It will start right up and then run from anywhere from 30 secs.  A new electro-hydraulic fuel injection system was about to debut.  It then dies, but will start back up and do the same thing.  still getting 300 ish psi icp cranking when truck at operating temps.  This is part I of a quick video on how to easily find the cause of low oil injection pressure on an International DT466 engine. The dt 466 is a good engine and will make DT466 Diesel Engine: The Navistar International Legend The DT466 legend crosses into the industrial, agricultural, and truck realms.  International DT 466 engine pdf manual download.  For the Medium Duty fleet operator this engine is the most reliable of all.  At full throttle the oil pressure around 42lbs (after getting normal operating temp), at low throttle (800 rpms) it drops to 18lbs.  Hi All! background 2000 international 4700 dt466e with 24,000 miles (yes, 24k) Truck backed up to the loading dock, driver cut it off, unloaded and went to leave and would just spin over/ no start.  This old fitting will let the fuel return to the fuel tank and not build any head pressure in the pump .  DT466E losing oil.  the bus was 30 minutes out of town it was plugged in but it would not start.  Adding Exhuast Brake to DT466 JpsFarms47 posted Mar Dt466 oil pressure problem.  Alex Olsen Earlier DT 466 models had a 4. most likely is the fuel pressure regulator at the back of the fuel rail ,the return line threads to it.  Also could be a leak on the return from back of head.  No faults come on active or inactive.  Especially if the lines pull out of the top of the tank, through a dip tube.  Has never overheated before.  Fuel pressure should be like 60 or 70 psi I think.  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. *** Thank for you help The fuel system diagram for the International DT466 typically includes the following components: fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors, and fuel pressure regulator.  Feb 17, 2009 When the high pressure oil o-rings fail on the injectors the oil usually goes into the fuel.  EGR delete.  Then try to start.  Ecm powers up and communicates.  After it cools for 2 -3 minutes an I bump the throttle to 900 rpms it sits around 20lbs.  dt466e Hello this is my first time here,we have 99 dt466e that stopped running,seems like it's not getting fuel,but also notice the wait to start light doesn't come on don't know how long it's been like that,not much pressure at the valve on the side of filter housing.  Always Ran 25-35.  Blue spring fuel pressure regulator. redpowermagazine.  ***** DTCs SPN:94 FMI:17 Fuel delivery pressure below min.  Route the clear hose into 40 psi fuel pressure is enough to start the engine.  A lot of vacumm and u got I'm working on a 2004 DT 466 e with the variable turbo that won't start on it's own.  But those rascals can do some weird things. thebiggreenbus.  I replaced the lift pump and it didn't change one bit.  The truck is 30 years old (sorry), so the fuel hoses may have internal collapses or other restrictions.  The owner of this truck has already replaced the injector Engine: dt466 egr 245hp (not dt466e was after the “e” version and before the maxxforce) Turbo: Vgt s300 series (fresh overhaul, engine had running issues prior to turbo over haul)(also spins freely) Fuel delivery pressure @ idle: actual ~56 scanner 56; EGR: blocked off for diagnosis ; Boost leaks: no (pressure checked charge air cooler DT466E problems.  More Articles. as in Check for fuel pressure at the filter outlet port while cranking ,I believe 35psi is minimum, I had 55-60.  40 psi is enough to start.  CAT Factory Trained &amp; Cert.  i am having trouble getting my 1990 DT466 international started.  6.  You don’t want to push out any New issue occurs.  Cause • Failed injector sleeve • Failed air compressor • Failed head gasket • Failed EGR cooler • Porous or cracked cylinder sleeve The likely cause of combustion gas leakage to the cooling system is past the A DT466 does not have a high pressure fuel system so I am going to assume .  After some troubleshooting, I discovered that the culprit was a faulty fuel pressure regulator.  If it seeping replace it because when it goes it will drain all of Hello DK's I'm currently working on a 2005 International DT466 with loss of power when in high speed or quick acceleration.  cdevins Seasoned Expediter.  truck was brought in for CEL being on.  The fuel tank is where the diesel fuel is stored before it is pumped into the engine.  Jump to Latest let it sit for 20 minutes, and it acted like it was cold again! (no start w/o wd.  Open CCV.  How to Fix Low Injection Oil Pressure in a DT466 Engine – Part 1.  Jump to Latest With it just instantly losing all oil pressure I would be suspect of a bad reading.  FS1282, FF5320 fuel filters.  Sounds like you are on Okay first fuel pressure should be around 60 psi I think you may have a bad return fuel check valve allowing fuel to drain back.  3 posts &#183; Joined 2010 Add to quote; Only show this user #1 &#183; Jan 16, 2010.  Regular maintenance and inspection of these components are necessary to ensure the proper I've got a 97 intl 4900 with the dt466e rated for 230hp.  2007 International DT466 4300 Oil Pressure.  I tried putting a starting fluid in the intake pipe but the engine won't run continuously unless you spray it bunch of starting fluid.  Some trucks normal operating psi is well under 10psi some times near 3-4psithe caps usually vent 15-18psi iirc. 0 sends the needle right to 18psi, only because the head is cracked and it leaks fuel into the coolant.  To ensure your new Dt466E fuel pressure regulator 1999 International DT466E losing prime overnight.  This is a manual fuel system, I have changed both fuel filters and air filters, still the same thing. org '04 Jetta TDI, Greasecar WVO conversion CAUTION: Do not add fuel to the fuel filter header.  These high pressures create problems if there is a leak Continue reading MaxxForce Diesel Injection Control Pressure If it leaks fuel out, it may be leaking air in.  ZF-6 speed.  There is no smoke coming from the exhuast, and attempts to start with ether did Slight air leak in the fuel line or weak pump losing prime ? Do the best you can and don't look back Next in line is the primer pump plunger seals will get old and drainback fuel out of the low pressure galley so some cranking is required to recharge the galley pressure.  Once you take it out, look in it for dirt or some other gunk stuck in the ball seat.  The high-pressure oil system's defective I have a customers 01' IH4700 with a DT 466E that is building alot of coolant pressure.  2005 int 4300 w/ dt466.  I did replace the fuel filter primer assembly when I noticed fuel Help dt466 fuel pressure loss under load.  The issue I'm having is without warning, while driving down the road the truck will lose power and then shut off.  Electric fuel pressure gauge. 00 According to the wording on their invoice they did 4 tasks (1) they cleaned the fuel filter system and installed prescreen, replace fuel filter, screen fuel strainer, regulator assembly (2) they &quot;found fuse for IDM burnt need to hard wire the connectors in battery box It could be fuel pressure, if the regulator on the back of the &quot;rail&quot; is not holding fuel pressure it can make for a hard start.  LUK SMFW.  1993 International Bucket Truck, DT466 Engine, will run fine then loses all power, like it's running out of fuel, will eventually pick back up and run for a short while, then do it again, seems to be getting air in the system and sucking the filter dry, had 20-25 psi of fuel pressure at the filter housing, was told I needed around 45 psi, replaced fuel pump on side of injection pump, didn't Customer: Hi there again, I recently repaired my DT466E from oil leak at high pressure oil pump.  2002 dodge 2500 ext.  It is only reading 40 lbs at idle and it dips down to 34 or so when accelerating.  International Navistar's DT466 and modern MaxxForce DT engine platform has been largely popular in medium duty truck applications for decades as a result of its positive reputation in the departments of reliability, longevity, and performance. 10 rear gooseneck &amp; 5th wheel hitch also has access to underbed repo wheel lift Coolant filter.  Only 60 psi. #ownerop#semi#diesel #dieseltrucks #diesellife #dieselpower#tractortraier#OTR#ove Could be a cmp, BUT the 1st place I would check is the prefilter fuel filter screen behind the fuel filter, it is by far the most negected item on any dt466.  And run decent while doing them.  Has fuel pressure at filter housing, and rail test port.  Check engine light comes on and it. It senses boost pressure in the manifold and limits the amount of fuel the pump can deliver untill boost pressure rises.  DIY Coolant filter.  If there If the system cannot develop the proper oil pressure for the high pressure side, it will log a code.  What you are probably talking about is ICP pressure which is actually oil pressure used to fire the fuel injectors.  2005 international 4300 truck with dt466 engine losing coolant.  I immediately pulled over and shut it down.  High pressure oil line a Braided lint that runs from the High pressure oil pump to the fuel rail.  Jim Griest.  Derating and now oil leaking! According to invoice UVC harness, 12 PIN UVC harness, crank filter, engine breather filter assembly, fuel rail pressure sensor, valve cover and/or gasket, electronic engine control sensor/regulator all replaced. O.  remove valve and shake it, if it rattles then it is bad or if it will let compressed air flow both directions it's bad.  I started the HUEI (this system uses boosted lube oil pressure to provide injection power instead of the cam shaft like you would see in a electronic unit injector system) specific testing by disconnecting the ICP sensor (injection DT466 issues.  It doea tey to crank when I prime it but its not getting fuel.  decided it might be dirty fuel or tank.  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