Showing articles & questions for topic
L6-5.9L Turbo Diesel

Gear selection, and coincident operating parameters (e.g., line pressure; solenoid position), on your transmission are easiest to see with a manufacturer scan tool. If and once it is determined that there is no lock-up, or no overdrive gear, the cause...

If you have fluid leaking from under the dash on the passenger side, the heater core is leaking. This part will require replacement in order to get heat to function properly again. Sometimes this can be replaced by removing only...

You should get your 'no start' inspected (https://www.yourmechanic.com/services/car-is-not-starting-inspection) by a qualified technician. The most common problem on this vehicle for a 'no start' is the fuel pump and filter. The fuel pressure will have to be checked by a certified...

Hi there. Diesel fuel systems can be temperamental, so that is where I would start. Lack of fuel pressure, contaminants or air in the system can cause the symptoms you are having. The water/fuel separator may need to be serviced...

The wiring harness is not available on this vehicle and will need to be repaired. You will need to get the problem diagnosed first by a mechanic like one from YourMechanic. Usually this will be on a time and material...

Hello, thank you for writing in. Issues like this can be difficult to locate, because you need the vehicle to be under a similar load to recreate the noise. With that being said, you may have a vacuum issue causing...

At key on, the fuel pump is normally only powered momentarily to pressurize the system. If you are testing during this brief interval, you have to apply a volt meter at the instant the key is turned on. Otherwise, the...

Sounds like the power steering pump valve is failing or the pump veins are worn and causing aeration of the power steering fluid making the system not function at low engine speeds. Try putting the transmission in low and turning...

It sounds like you may have a failing voltage regulator or failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator pulley....

Hi there. Diesel fuel has a green tint to it. It is possible that the fuel has gotten into the oil, but most likely the diesel will just thin out the oil. If the oil if light bright green in...

It sounds like you may have a fuel level sensor failure. Verify there is fuel in the tank, if possible, to eliminate the low fuel as an issue. Electrical testing (https://www.yourmechanic.com/services/electric-problems-inspection) can be done to determine if the sensor is...

It could be a fuel pump, or a fuel pump relay issue. The fuel pumps are problematic on these Ram Diesels, and will quit with no warning. There are many aftermarket pumps that are more durable than the stock Dodge...

If the clutch had been slipping prior to the failure and now nothing happens, it may be worn out. Once the clutch wears, the mechanical connection between the engine and transmission is broken and power cannot be delivered. Have an...

Hi Randall. Thanks for contacting us today. I think you have a few different issues that need to be individually diagnosed and resolved. Otherwise, you'll be chasing repairs like it appears is going on in this case. The power steering...

Hi there. Thanks for contacting us today. It's quite possible that the battery terminals may have been installed backwards on accident, which would cause the electrical problems you are experiencing. It's also possible that while attaching cables, electrical relays have...

Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on...

Changing the engine will determine what type of engine you have. If you have a CPP 24 valve Cummins engine, then the engine will swap just fine as they fit the 1998 to 2005 models. However, if your vehicle requires...

Hi there. This really isn't a service we offer or are best suited to give you any "good" advice on. When it comes to ECU's, we always defer to the OEM solution; due to the possibility of connectivity issues with...

Hi there. To determine if the injector is not working properly, either you can perform a cylinder cut out test on your injection system or you can swap your injector on cylinder number 5 with another cylinder and see if...

The 5.9L diesel is a straight six engine. The 6.6L diesel and the 7.3L diesel are both V8 engines. If find that there are more maintenance when it comes to the V-configured engines to the straight six engines. I have...