8.3 Cummins Diesel Engine Problems, Reliability, Specs

Cummins began producing the original 8.3 C-series engines in 1985. The ISC 8.3 Cummins came out in 1998 and uses the same basic design. It offers up to 400 horsepower and 1075 lb-ft of torque. This made it a great engine for fire trucks, trash trucks, and heavy equipment. However, the ISC 8.3 diesel is…

5.9 Cummins 12V vs 24V Cummins Turbodiesel
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5.9 Cummins 12V vs 24V Cummins Turbodiesel

Dodge Ram 5.9 Cummins engines are often regarded as some of the most reliable light truck turbodiesel engines ever. The 12v Cummins, also known as the 6BT, has a legendary reputation for reliability. However, the newer 24v 5.9 (ISB 5.9) Cummins is still an excellent, reliable diesel engine with a few pros of its own….

Cummins P2509 Engine Code – Disagnosis & Troubleshooting

Cummins P2509 Engine Code When you scan your Dodge/Ram Cummins engine and receive a P2509 diagnostic code, it will read ‘ECM/PCM Power Input Signal Intermittent Code’. P2509 appears on Cummins engines when there is an electronic signal being sent to the ECM/PCM that is faulty or intermittent. Electronic signals are measured within parameters, and when…


The 5 Most Common ISB 6.7 Cummins Engine Problems

Article Updated: January 15, 2023 The 6.7 Cummins diesel engine is the latest of the B series engines. It’s a straight-six, 24 valve turbodiesel released for Dodge Ram trucks in 2007. The B6.7 Cummins still lives on in Ram 2500 and 3500+ trucks to this day. Though, it’s been through a few updates over the…

Cummins Diesel B Series Engines : Operation and Maintenance

To The Cummins Diesel Owner and Operator: Preventative maintenance is the easiest and least expensive type of maintenance.  Follow the maintenance schedule recommendations outlined in Maintenance Guidelines. Keep records of regularly scheduled maintenance. Use the correct fuel, oil and coolant in your engine as specified in Engine Specifications. Cummins Engine Company, Inc. uses the latest…

Cummins Engine Identification

Engine Dataplate  The engine dataplates show specific information about your engine. The engine serial number (1) and Control Parts List (CPL) (2) provide information for ordering parts and service needs.   Injection Pump Dataplate  Robert Bosch In-Line Dataplate Location The Cummins part number for the fuel pump-governor combination is located on the governor dataplate.

Cummins Diesel Engine Service

Dodge Ram Cummins Diesel Engine Service Important Safety Notice  WARNING  Improper practices or carelessness can cause burns, cuts, mutilation, asphyxiation or other bodily injury or death.  Read and understand all of the safety precautions and warnings before performing any repair.  This list contains the general safety precautions that must be followed to provide personal safety….


5.9 12 Valve Cummins Diesel – Adjust Idle Speed

Correct Idle speed is: Automatic Transmission – in drive with AC on 750-800 RPM Manual Tansmission – in neutral with AC on 750-800 RPM NOTE: These speeds may cause stalling when the engine is cold. If this is occurs, adjust the idle speed to 900 RPM. The dash tachometer is not accurate enough for proper adjustment….


Cummins Diesel 5.9 Engines – Killer Dowel Pin

5.9 12v Cummins Killer Dowel Pin Problems The 5.9L Cummins 12-valve diesel engines, manufactured between 1988 and 1998, feature a steel dowel pin that locates the front timing gearcase. Over time, this steel dowel pin can wobble out due to the constant heat cycles and vibrations of the engine. If (or when) the dowel pin works its…