What does the IPR valve do on a DT466?
DT466 / DT466E Navistar / International IPR Valve (1994-2004) The Injection Pressure Regulator valve is responsible for controlling the pressure in the high-pressure oil system which in turn operates the fuel injectors.
How does an IPR valve work?
The IPR controls HPOP outlet pressure in a range between 450 and 3,000 psi. An electrical signal to the solenoid creates a magnetic field which applies a variable force on the poppet to control pressure. With the engine off, the valve spool is held to the right by the return spring and the drain ports are closed.
What size is the IPR?
Enhance your purchase
| Brand | Lisle |
|---|---|
| Product Dimensions | 1.7 x 1.7 x 1.5 inches; 8 Ounces |
| Size | 3/8″ |
| Material | Steel |
| Drive System | Hook |
How does the high pressure oil pump work on a DT466?
The high pressure oil pump that operates the injectors is fed oil by the lube pump through a reservoir in the front gear cover. 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.
What kind of oil to use in DT466?
If you cannot find a CI 4 As an alternative you can use 10% 20/50 engine oil or 1/2 gallon of Lucas to every ten gallons of oil if you have higher miles. I would also check the injectors, the ICP sensor and the cam crank sensor.
Why does my MaxxForce DT have low power?
It’s also recommended to check the air filter for any restriction. This of course will cause more of a low pressure area in the intake system. If you’re working on the MaxxForce DT you must have the servicemaxx software. After this operation is completed a MAF recalibration is needed.
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.