Common questions

What should resistance be on Cummins ISB Diesel engine?

What should resistance be on Cummins ISB Diesel engine?

When poor networking is detected the J1939 system is tested for proper resistance. The resistance must be 60 ohms at the diagnostic plug in terminals but one of my mechanics got a reading of 120 ohms which means an open or faulty resistor. On a similar job I worked on one of the resistors was missing from the plug in.

Where is the third fuel filter on a Cummins coach?

Now the question is, with the year of the coach being 2003; there should be a third fuel filter in the fuel line, (This filter was only used on the ISB-02) and is located in the frame rail on the drivers side just behind the rear axle. Do You know it it has been replaced ?

What causes a Cummins 5.9 engine to stop?

Usually “Stop engine” is a result of high coolant temp, low coolant level, low oil pressure. While all of this was going on did you notice and irregularities on any of the gauges i.e. low oil pressure, high coolant temp? Check the fluid levels first, then have it scanned.

Where did I lose power on my Cummins?

While climbing a steep grade yesterday both the “stop engine” and “check engine” lights cam on and power was reduced greatly. The road was a two lane with no room to pull over, so I continued climbing.

When poor networking is detected the J1939 system is tested for proper resistance. The resistance must be 60 ohms at the diagnostic plug in terminals but one of my mechanics got a reading of 120 ohms which means an open or faulty resistor. On a similar job I worked on one of the resistors was missing from the plug in.

Now the question is, with the year of the coach being 2003; there should be a third fuel filter in the fuel line, (This filter was only used on the ISB-02) and is located in the frame rail on the drivers side just behind the rear axle. Do You know it it has been replaced ?

Usually “Stop engine” is a result of high coolant temp, low coolant level, low oil pressure. While all of this was going on did you notice and irregularities on any of the gauges i.e. low oil pressure, high coolant temp? Check the fluid levels first, then have it scanned.

While climbing a steep grade yesterday both the “stop engine” and “check engine” lights cam on and power was reduced greatly. The road was a two lane with no room to pull over, so I continued climbing.

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Ruth Doyle