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L6-6.7L Turbo Diesel

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Auto headlight sensor is too sensitive - 2013 Dodge Ram 3500
Hello. The sun sensor is on the top of your dash and should be in clear view of the sky. If it is dirty, covered up, or you have tinted the windshield, then it may cause erratic operation. You could...
Question
Clunking sound after replaced ball joints
There may be a recall pertaining to the tack bar welds breaking on this vehicle. Call your local Ram dealership and see if your vehicle is affected by recall 15V541000. If you have play up and down but not side...
Question
Unable to decide if I should get a diesel or gas.
The Cummings diesel will not let you down. However, not having a block heater of any kind will cause cold start issues. Hauling loads will require a diesel to prevent engine wear versus a gas engine. I would recommend the...
Question
Brake exhaust doesn't shut off when I press on the accelerator.
Hello and thanks for your question. When you press the accelerator to deactivate the jake brake system, the electronic throttle sends a signal to the computer to shut off the power to the jake brakes for acceleration. The switch...
Question
Coolant temps get really high but cool down really fast
This is may be a failing coolant fan switch. Try checking the coolant fan thermostat switch to be sure I is coming on at the right temperatures. You may also need to have the fan speed checked t be sure...
Question
Broken line
A copper line from the exhaust manifold to the engine bay sounds like an EGR pipe to me. If that's broken, the EGR won't be working as it should, and would just be injecting clean air as opposed to reusing...
Question
Why The lighting volt its on after 45 minutes ?
Hello. Most of the time this is caused by a bad battery. This is a very common issue that will occur if there is a battery or alternator failure. I usually load test both the battery and the alternator to...
Question
Battery draining after new alternator installed
Hi, thanks for writing in. It's very common for mechanics to forget to replace alternator sensors or charging wires to the battery when they replace the alternator. However, one other item that directs the flow of electricity to the battery...
Question
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
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...

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