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L6-6.7L Turbo Diesel

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Rear tires on passenger side locked up
I would not drive the vehicle until it is looked at, as it is possible for the fault to cause an unsafe driving condition. When a brake locks up without any reason, it is most likely caused by a failure...
Question
5mph max in 40 miles & code U3107
Diagnostic Trouble Code U3107 refers to a fault in the vehicle's network communications system, which includes the controller area network (CAN) wiring bus and modules on the vehicle. Unless other warning lights are on and/or the check engine light is...
Question
P0140, P0191, P2000. I put a new oxygen sensor in
Hi there. These codes are coming on for a possible fuel pressure issue that could also be causing the catalytic converter to burn too hot. Check the fuel rail pressure and make sure that the pressure does not exceed minimum...
Question
Transmission stuck in fourth gear
Hi - most likely there is a problem in the valve body with this hydraulic circuit. The P0750 shift solenoid message, while accurate relative to which circuit is involved, may have only been the symptom, not the cause. A sticking...
Question
I have 137,000 miles just bought truck warning light came on PDF 100 blocked what do I do
The diesel particulate filter (DPF) is used to trap particulate matter and keep it from being released into the atmosphere. Every so often, the DPF must go through a regeneration process in which the particulate matter is burned. Pressure sensors...
Question
Brake lights on constantly
It sounds like you have a short in your brake light circuit. Since you have replaced the brake switch yourself, I would recommend searching around in that general area for any damaged wiring that may exist near the switch. Wires...
Question
turn signal works when acc is on and it wont work when started . Right side
Hi and thanks for contacting YourMechanic. What seems to be happening is the cluster control module has a short in it. The control module is under the dash on the driver side. I recommend replacing the cluster control module. The...
Question
My 2012 ram 2500 started over heating just had my water pump replaced around a month ago. I think it's my thermostat. How can I tell?
Hi there. First check the cooling system and see if the coolant is low. Top off all fluids that are low that could cause the engine to overheat. To check to see if the thermostat is working, feel the upper...
Question
Truck over heat
Hey there: The symptoms you're describing seem as if you might have a damaged heater core or heater control valve. On the 2011 Dodge Ram Turbo Diesel, there is a heater control valve that opens and closes and allows hot...
Question
white smoke when cold
When the vehicle is first started your exhaust pipes are cold and if outside temperature is cold the exhaust pipes are even colder. Now you start the engine and the hot exhaust hits the cold pipes causing a large amount...
Question
What would cause a loud bang and hard shift into and out of gear in rear end area of Dodge 3500 auto trans.
Hi There, This is usually a case of a bad U-joint that has excess play in it. As the transfer of torque moves from the transmission through the drive line to the rear end, this puts a tremendous amount of...
Question
I'm getting a Service engine soon.
Hello, thank you for writing in. These diagnostic issues happen all of the time! Unfortunately there is very little we can do about it. Unless the vehicle is giving any other symptoms to work with, the only information we have...
Question
Truck shuts off randomly or won't start.
Hi there. What you are describing above is likely an issue with the ignition system. The biggest issue would be trying to determine which one (or multiple components) are causing your truck to shut off randomly. It is very likely...
Question
How reliable is the diesel fuel pumps on the 2016/2017 Ram 2500 Trucks? What is the life expect of the diesel fuel pump for the Ra
Hi there. The last time I noticed problems with Dodge Ram diesel pickup diesel fuel pumps was about 5 years ago. The issue was actually related to the wiring of the fuel pump as opposed to the pump itself. Although...
Question
Squealing noise from front end during low speed turns.
Hi there. The noise you're hearing is metal-to-metal contact. Due to this fact, the best guess would be the wheel bearings starting to fail. When the bearings begin to wear out, the first symptom is commonly noise like you've described....
Question
transmission overtemp
Hi there. If you are going to have the transmission flushed and filters changed, I would recommend having them also check the transmission cooler to see if there is some failure there. Usually when you have this type of transmission...
Question
Oil pressure gage at zero. No leaks and has plenty of oil. No abnormal noise and temps normal. No low pressure warning light.
The oil pressure gauge will usually drop when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit is not working properly and...
Question
Cummins exhaust brake staying on
Check the DPF filter and see if it's plugged up. A plugged DPF filter will cause the engine exhaust brake to stay on, and the engine light will come on if the filter fully plugged up. If you need further...
Question
Engine light is on. Code is for a o2 sensor. Dealer can't find anything wrong. Your thoughts on the matter?
The underlying fault depends on which of over a hundred different oxygen sensor codes has set. Also, it depends on whether you are having trouble with a pre or post catalytic converter oxygen sensor (pre and post have different functions)....
Question
Hi Scott. I have a 2013 Ram 2500 with 70000 miles on it now. I took it to the dealer with 50000k on it with a front pinion seal le
If the seal is repeatedly failing one possibility is the pinion itself has too much play within the assembly. That could be due to a design issue and/or wear in the bushing and/or bearing that supports the pinion shaft. There...

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