Add up all recorded measurements to determine total injector return volume. Then they progressed into a fully electronically controlled common-rail diesel fuel injection system in 2001 with the Duramax. These are the fuel pressure sensor and the high-pressure relief valve. This helps, but may not solve a persistent problem. The high pressure seal on the pressure control valve is one time use. Common items that suck air are old fuel lines, bad o-rings in quick connect fittings, tank switch valves, primary fuel filters especially early 6.
I did do that, and the rail pressure stayed at the same 6000-ish at idle. Unlike the galvanized steel fuel tanks of the past, the Duramax has a high density polyethylene fuel tank which makes it impossible for corrosion to cause leaks. Misfires, smoke, fuel knock, hard or no start conditions and fuel contaminated engine oil can all be brought on by an injector failure. Do not use you fingers to find fuel leaks! On the other hand, some dealerships will take into account that you have a programmer or chip and treat each problem case by case. These articles will allow you to see the evolution of the trucks and powertrains, and see how both performance and styling has changed throughout this period.
Max return per bank usually runs about 4-5ml. Passenger side fuel rails Feeds fuel injectors 1, 3, 5 and 7 ; F. The injectors are typically damaged as well if the pump is damaged. A third issue arises from the fuel filter itself. This is often overlooked and is a simple fix. This article will cover the fundamentals of the Duramax common-rail diesel fuel injection system, its components and their normal operation.
During certain driving conditions the engine will perform a regeneration cycle, which will use additional fuel injections and the catalyst to heat up the exhaust temperatures to the point where the soot will be burnt out and form ash. Even with this kind of failure, it may still be possible to start the engine. If air comes out when the bleeder is opened there is air in the system. Not sure where to go from here. When using stock power, it's practically impossible to hurt the transmission or exceed its torque handling capability. If the smoke clears in less than 1 minute, this could be normal depending on temperature and altitude. The design of these turbos is nearly identical to 6.
This injection pump is generally quite tough. This in turn allows the injector needle to rise with the piston and fuel to exit the tiny nozzles at the bottom of the injector. Regeneration cycles will cause some fuel to leak past the piston rings in the cylinder and drain into the oil. C-Time should change slightly when the engine is accelerated or decelerated. Higher oil pressure and volume at higher rpm will force the unison ring to move.
The temp should read less than -40 degrees. And Yellow,,, Send a comment with results. If there is metal found, the entire high pressure fuel system must be checked for metal and replaced as needed. If not, check wire harness and connector. If nothing abnormal is found during the visual inspection, than a mechanical fuel pressure tester will be used to check fuel pressure at the fuel rail. Try increasing the rail pressure, we find injector nozzles that leak at idle pressure, but do not leak at higher pressure.
Crack open fuel lines to see if knock goes away. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. I am going to go get a beer. Injectors that have a poor cylinder power contribution or a noise or smoke change when canceled will also need to be replaced and are likely to cause low rail pressure during cranking. There is a limited window of time during which fuel can be injected into the combustion chamber. See picture under High Pressure Pump.
Any sponsors on here that can help me? As with all repairs to wiring harness connectors and terminals, a pin test of the terminals within the connector should be performed. To inspect the turbo, remove the inlet hose from the compressor inlet and make sure the turbo spins freely and that the compressor wheel does not rub on the housing when pushed to the side. If there is any movement, the reluctor wheel retaining bolts are loose. The high pressure fuel is supplied to the fuel injectors 1 through separate high pressure pipes. The fuel pressure regulator in the high pressure pump controls rail pressure. Now if the Duramax left behind some technicians, what about the owners? The supply pump is driven from a relay on the firewall or in the under hood fuse-relay center. See Wire Harness Testing for other possible problems.
If it will not learn, the unison ring is likely sticky or stuck. Also look at the balance rates, if the tip is leaking fuel then the balance rates may be out of specification. If the check ball in the injector is leaking due to erosion on the seat or the high pressure limit valve leaks then it will not build enough rail pressure to start the engine. Introduced as a 1999 model, the outgoing Silverado is now eight model years old, and has begun losing ground to the fresh faces offered by both foreign and domestic competitors. Record all diagnostic data as outlined on a copy of the attached diagnostic worksheet. Verify there is no air in the supply system and restriction is not excessive under all load conditions.