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Why do some diesel engines start so hard in cold weather and others start right up. We will be talking about the difference between mechanical fuel systems and common rail fuel systems. This is not about block or fuel or oil heaters on the engine.

EGR valves on the ISX engines are pretty bullet proof. I was surprised to find egr position sensor failure faults in the image. Lets see what is going on here.

It is the end of life for the Celect and Celect ecms when it comes to Cummins engine company supplying or repairing them. I was there when the first celect N14 pulled in the door and now 30 plus years later they are no longer supported by the mother ship.

This sensor showed up when EGR showed up and has taken on more responsibility these days. Infact the ecm uses this sensor more than any other on the engine.

This is a crucial part of the aftertreatment system. Lets see how it works and what it does. You cant regen without it

There is a tool to help you isolate data bus problems. Lets take a quick look at it and talk about how to use it.

This is an unusual problem and the way to think through it and make a decision on a high dollar part comes to life in this video.

A fresh complete out of chassis rebuilt. Back in the pete and it wont stop smoking. It sounds ok..maybe a little noisy but it is 28 degrees out and she is warming up. Not missing ....Humm what could be going on??

There are lots of reasons you can have fuel in the oil. These days there are even more than in the last 40 years of old non electronic engines. Lets see what is going on and how to figure it out!

These days it is rare for a new part on the engine to fail at very low operating hours. Lets look at what appears to be a part failure but is it really?

When I started at CUMMINS of Northern Ohio back in 1978 the parts labels were white with a black number on the box. The labels have certainly come a long way. Today due to people selling non genuine parts in boxes that have almost perfect copies of a cummins label, newer label technology had to be made. This is so you know for sure if you are buying a genuine Cummins part of a knock off or afte...

Sometimes people call a part of device many different names. Especially when angry but in this case. The IMV is the name engineers give this part. Lets see what we are talking about because if the IMV fails on your common rail engine you will be on the side of the road.

This was put on to stop any oil vapor from becoming drips on the ground. It was part of becoming a cleaner engine. Today the system works so well it may not even need a filter in it. Lets take a look.

This little sensor has a lot of power in the key on calibrating of sensors. It's primary job is a reference and then to protect the turbo once we hit 8000 ft above sea level.

The visual check for water in diesel fuel

The ISX oil temperature and pressure sensors

Engine shop Joe hangs out at the lagrange engine show 2024

The fuel transfer pump

The data port for communicating with the ecm

The cummins on engine air compressor

The common rail fuel pressure sensor

The aftertreatment doser injector fuel doser

ENGINE SHOP JOE CAN MY TRIP CONTINUE WITH THESE LIGHTS ON???

How to evaulate an engine you may wish to buy or sell

Cummins only uses one part number boost sensor right???

DEF system problems but no derate WHY??

What is and What causes an overcrank fault

A walk through the common rail fuel system

DEF tank level and usage percents in a normal system