Відео

This sensor measures extreme pressures in the common rail. They used to say you cant compress a liquid but in the common rail at 40k psi the fuel actually does compress and this sensor has to accurately measure it. Lets learn a little about this amazing sensor.

We are going to talk about the doser injector sometimes called number 7 injector in shops. This injector doses diesel fuel to heat the aftertreatment up to regen temperature.

What is the difference between the OBD light and the check engine light. What is each lights job or function and what does a driver or operator do when those are on? This will help demystify those two notoriously changing and confusing lights that are on every truck dash if it has aftertreatment.

This is basically how engine shop joe evaluates an engine. It was more difficult with the old mechanicals but the advanced electronic engines make it much easier to discover information critical to a good evaluation.

Some sensors look unique and only have one part number. Some times that part number supersedes but it still starts with the old number history. Some sensors all look alike- NOx sensors inlet vs outlet. How about boost sensors are they one fits all- Lets look.

There are some DEF related faults that drive a check engine light and there are some that don't. Not all DEF related faults will drive a derate. - Lets see how that works

The check engine light goes on and the engine wont crank.. What is this about?? Lets take a look at over crank faults. As you watch the video try to figure out what caused the check engine light to come on in this case.

Going back to basics here. We need to understand the basic function of any system and then build on that knowledge to become proficient. This especially applies as you think through a problem. Here we are looking at the basic sections of the common rail fuel system from tank to injector. There are tips and facts in this that will make a difference in your thinking through a fuel system process.

Many times I am asked how much DEF should I be using. Lets take a look at what determines the quantity of DEF your engine is using and at normal quantity values. This is important because DEF is part of your operating costs and if the system is using excessive DEF there is a problem a brewing. We will also look where you can monitor the engines DEF usage in whole percents.

One of the most important sections of ecm history is engine protection. What is "engine protection data" and how would I use it to make a decision about a vehicle i was looking to buy. How would i use it when evualating what happened to an engine that had a major failure. Get the facts here.

We put a DEF pump on this unit a year ago and cleaned out the DEF tank and lines. This is a road tractor and the driver takes care of this like it was his own truck. He keeps that DEF tank cap area clean and only puts in DEF from new sealed containers he carries. How could another pump be logging 3559 and then scr inducements faults. Cummins says most of the time fault code 3559 is wiring or su...

We installed a new DEF pump and it is making a lot of noise. A hammering sound. It is up in a compartment so was that just noise due to mounting location or was there still a problem. Lets take a look and see.

There are three basic types of rail overpressure relief valves. We will take a quick look at the three types.

NICE JOB Engine Shop Joe. When you take a big machine on a road test or put it under load to check values sometimes values are so far out of line it causes gauge damage. Of course pressure gauges like oil pressure or fuel pressure needs to have lines and gauges that are at least double of what the system can make. I also have those outside the cab tied to a mirror or under the windshield wipers...

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