Why is my DT 466E engine not working?

The bus in question was a 1998 International conventional with a DT 466E diesel engine. It was the middle of winter so the cold temperature was a contributing factor with the no start situation. We went out to have a look and could not get it going so the next step was to tow it in and have a closer look.

Why does my international 4300 DT466 not start?

If theres any air in it at all, it wont start. . The daytime running lights (DRL) and low beam headlights are inoperable. The highbeam headlights, markers and all other lights function properly. I have checked the fusebox in the engine compartment and above the glovebox and am unable to locate either a DRL/headlight, fuse or relay.

Why does my DT engine not start well?

The high mileage on this DT engine was a factor and we changed the HEUI o-rings as well since that also directly effects starting. The o-rings separate the oil from the fuel around the injector and if one of them fails this will also cause poor starting among other problems.

Can a 2007 IH 4300 run in sub zero temps?

The place I work at has a 2007 IH 4300 with a DT466. The past few days have been sub zero temps here. It ran fine the beginning of the week but yesterday it wouldn’t start. We pushed it in the garage and let in warm up over night. We also put the batteries on charge since they were pretty weak.

Why does my DT466 start harder cold than hot?

To answer your voltage question, that’s EXACTLY what is likely causing your problem. On a cold engine it takes more battery power to crank the engine compared to a HOT engine, so it starts harder cold – we all know that.

What kind of car is the DT 466?

Can’t seem to figure this one out myself, so I figured I’d try here. 2003 International 4300 with the 466, and have been having some issues. Used to start and run beautiful, probably the best running dt I’ve driven.

What to do if your DT466 fires right off?

Try putting a battery charger on it, 12V low or Med at most, if it THEN fires right off, you’ve got a bad connection somewhere in the ECM or IPR circuits- This is VERY common. Thanks for all the input guys, I think I may have an idea what’s happening, correct me if I’m off track.

What makes a 2003 International 4300 sputter and Miss?

I have a 2003 International 4300 with a DT466. I just had all the O-rings on the injectors replaced along with the wiring harness that goes to the injectors. Now once the truck gets up to running temp it starts to sputter/miss. Truck runs GREAT cold but once warm gets worse.

Why does my DT466 diesel truck start smoking?

The truck will crank and accelerate great, then it begins smoking and goes into a limp mode with little pedal reaction. If you raise the rpm’s the smoke goes from whitish grey to dark almost black, but only when you raise the rpm’s.

Where is the check valve on a DT466?

You are correct ! On the older dt466, the check valve you are referring to also acted as a pressure regulator for the fuel system and maintained pressure in the system . On the newer dt466, this fuel pressure regulator is now built into the fuel filter housing.

How often does a DT466 give up the ghost?

The only difference betwene the two is how light your pocket will be. If its not the issue youre only out 25 or 30 bucks. Had mine go a couple times they usualy give up the ghost every 50,000 to 100,000 as long as you dont run too hot and driving conditions.

What should fuel psi be on dt466e International diesel?

Usually when we get no start cold but fires and runs after using ether it might be injectors, but you need to do the fuel checks I posted and let me know. If you don’t have a fuel psi gauge, autozone loans them out. I like to have around 60psi I have seen them run ok above 45psi.

Where is the fuel pump on a DT-466?

JaymZH2 wrote: fuel pump would be my guess. not sure on the older ones, but the newer DT’s it is on the drivers side mid block towards the front. a couple bolts a 2 lines and your done. I have a 2000 4700 DT-466, would what you call the fuel pump be the same thing they call the “high pressure pump” in the book that the lines from the filter go to??

Why does my dt466e diesel engine not start?

DT466E international diesel wont start… Will it stay running, after you ether it? Or does it just die out again? Do you have access to a scanner, any engine light on? Does the tach read while you are cranking? Can you use the hand primer on the filter base to try and prime system, if it does not get hard to pump you are most likely sucking air.

Why does my dt466e take so long to start?

The high psi oil system, in a dt466e you have high psi oil that fires the injectors, and sometimes the pump can actually bleed down overnight causing it to take forever to start, the only way to check that will be let it sit overnight and there is a temp sensor in the front cover/ drivers side . it is right in front of the oil/fuel pump.

When to replace DTC on an Intl 4400?

After checking resistance through injector coils and checks to chassis ground, if harness tests are in spec, and DTC is active, replace the injector. Only diagnose injectors with active DTCs. If > 1.5 ohm, check for open circuit or high resistance between IDM and injector, or open injector coil.