Dedicated to performance modifications and repair and maintenance information for Dodge & RAM trucks with the Cummins diesel engines, EcoDiesel, and HD gas engines. We’ve got articles covering the legendary 5.9 Cummins 12v and 24v engines, 6.7 Cummins, EcoDiesel, and more.
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….
The massive 8.0 Magnum V10 engine was available in the 1994 to 2003 Dodge Ram 2500 and 3500 models. Its 310hp and 450tq made it the most powerful gasoline engine available in a passenger pickup truck. The low-end torque makes the engine very capable at towing. In this article, we dive deeper into the 8.0…
The Cummins 12v is a legend when it comes to reliability. It is widely considered to be one of the most reliable diesel engines ever produced in consumer trucks. However, they still suffer common problems with such as the killer dowel pin, heater grid failure, TPS failure, and p-pump overflow valve issues. The p-pump version…
The 4BT is virtually a bulletproof engine. It is extremely simple and has virtually no electronic components leaving very few things that can go wrong. However, there are a couple of common problems with these engines worth mentioning. Cracked cylinder heads is the main problem but the Cummins 4BT does also suffer from fuel injector…
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 signal falls outside…
Many also associate the Cummins name with some of the best light truck diesel engines ever. However, no engine is perfect and the 6.7 Cummins diesel is no exception. The 5.9 Cummins legendary reliably unfortunately didn’t translate as well to the redesigned new engine. The new engine received numerous emissions systems that have ultimately been…
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.
The illustrations which follow show the locations of the major external engine components, the filters, and other service and maintenance points. Some external components will be at different locations for different engine models.
In this article, we discuss the 1994-98 Dodge Ram 12 valve Cummins Diesel Engine Idle Speed Adjustment. Towards the end of the article we include a helpful video detailing the steps to adjust the Cummins 5.9 12v idle speed. Correct Idle speed is: Automatic Transmission – in drive with AC on 750-800 RPM Manual Tansmission…
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…
The Bosch VP44 Injection Pump Overflow Valve is located on the side of the Cummins injection pump. It is also used to connect the fuel return line (banjo fitting) to the fuel injection pump. Bosch VP44 Injection Pump Symptoms Fuel volume from the fuel transfer (lift) pump will always provide more fuel than the fuel injection pump…
The Cummins Diesel 5.9 liter Engine 6BT, aka the Cummins “12-valve” was the first member of the “B” engine family to be used in a light truck vehicle. The 6BT used Robert Bosch GmbH fuel systems, injector, and VE rotary pump and P7100 inline injection pumps. Some early 6BT’s were supplied with CAV rotary pumps…
