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F-350 Super Duty

The white smoke is a sign that coolant or water is leaking into the cylinders. The radiator and overflow container are examined and checked for the right amount of fluids. The engine oil is checked next to make sure it...

As you may know the oxygen sensors, which are part of your emissions system, read exhaust gases to determine whether or not the appropriate amount of oxygen is present in the exhaust. Based upon this reading, this information is relayed...

Hi there. With newer diesel engines and the advanced timing systems they have, the importance of fully functional glow plugs (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-glow-plugs) once the motor is lit is less important. However, as the weather gets colder, starting a diesel engine with...

Hi there. First check to see if the cruise control fuse is blown. Then check the brake light switch (https://www.yourmechanic.com/services/brake-light-switch-replacement), the brake pressure switch, the speed sensor on the transmission (https://www.yourmechanic.com/services/speed-sensor-replacement), or the cruise control buttons. Most of the time...

Hi Josh. Thanks for contacting us today. It would be very helpful if you could let us know what symptoms you are having. This many codes typically indicates a fault with the ECU, so let us know what problems the...

Hi Ian. Thanks for contacting us today. I might be mistaken, but I believe the fuel pump relay is located behind the radio of the vehicle, near the primary fuse panel on the F-350 Super Duty. To locate and remove...

If you had your brakes removed and hub will not turn freely then it is the bearing in the hub. I would recommend replacing both front hub bearings since they both have equal amount of wear and the other side...

The problem is in your charging/starting system. Most likely, you just have bad batteries (since your truck uses two). A professional, such as one from YourMechanic, can diagnose and repair your starting problem (https://www.yourmechanic.com/services/car-is-not-starting-inspection) as needed.

Hi there. The EBPV (exhaust back pressure valve) is sticking or the EBP (exhaust back pressure) sensor tube is wet which freezes in the cold preventing the EBP sensor from seeing the increase in EBP as you attempt to throttle...

The issue is with your ignition switch. The switch is turning on the starting circuit to the starter and not disengaging the circuit unless you turn off the key. I recommend replacing the ignition switch. If you need further assistance...

If your radiator is leaking then it needs to be replaced. Hopefully the engine never got too hot when this loss of coolant occurred. Once the radiator is replaced I would typically do a cooling system pressure test to make...

The lines to the firewall could be hot and yet the heater control valve (https://www.yourmechanic.com/services/heater-control-valve-replacement) is not admitting the heated coolant to the heater core in the dash. So, you want to inspect that valve and make sure it is...

You must have a fuel line that is leaking. Diesel engines have very high fuel pressure. With the age of your vehicle it is very possible that you have a fuel line that has rusted through. This is a pretty...

Although I'm not there to inspect your Ford Super Duty, it would seem logical to inspect your Electronic Brake Control Module (EBCM) (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-electronic-brake-control-module-ebcm). This component reads all of the braking system’s sensors and activates the ABS or traction control system...

Hi Sabrina. Thanks for contacting us today. One thing to remember about OBD-II trouble codes is that they indicate the source of the code being triggered - not always the source of the problem. In this case, it's quite possible...

You will need to have system scanned for codes first and repair any received codes first. The exhaust pressure sensor may not be reading correctly and would cause the problem you are talking about. Make sure any other codes are...

Hi there. Among the items you listed that were recently completed, the suspension alignment may have triggered the Service Advancetrac light. This system is comprised of multiple sensors and components that make up the suspension, steering and braking system. It's...

If this is a new or rebuilt transmission, and external controls (throttle position sensor, solenoids, TCM, harness, etc.) have ALL been diagnosed and tested, the transmission is likely defective and should just simply be returned to the vendor, again though...

Hello. The wrench light Illuminating on your particular vehicle is very similar to a check engine light. When the wrench light comes on the vehicle may go automatically into limp mode. Limp mode is when a vehicle will limit the...

Hello, thank you for writing in. Typically with the first symptoms you described I would direct you to check all of your fuses, focusing on the instrument cluster fuse. However considering the engine is showing signs of stress, you may...