To thoroughly reset your engine system, detach the negative battery connector and allow 30 minutes for your engine to completely drain its power. The computer will be forced to reboot on its own as a result of this. After that, you’ll need to utilize a code reader, add adequate DEF, and take the car to a mechanic.
What happens if your DEF is overfilled?
The tank’s neck serves as a DEF breather tube. The DEF within the tube crystalizes if it is “topped off” by overfilling. The DEF crystallizes in the tank, preventing air from entering. This implies the pump won’t be able to flow the fluid out of the tank and break down the NOx. Choke capping is a common practice that reduces engine performance. Plus, when temperatures drop below zero, an overfilled DEF might freeze and cause a blockage.
What is the procedure for resetting the computer on a Ford diesel truck?
The answer was provided by
- To begin, switch off your vehicle and unplug both battery wires.
- After that, get into the driver’s seat and select the Accessory setting on the ignition.
- Allow 20-30 minutes for it to be in the Accessory position.
- Then, take your key out of the ignition and reconnect the battery cables.
Is it possible to go around the DEF system?
If you’re considering circumventing any of your diesel’s pollution controls, keep in mind that doing so is extremely unlawful, and the penalties can be severe. Although the chances of being caught are slim, the repercussions are severe. Installing an exhaust pipe to bypass the particle filter can cause havoc with the EGR system and result in extremely high exhaust gas temperatures, which can shorten the engine’s lifespan. Of course, removing the DEF system necessitates the installation of a plug-in tuner chip, which deceives the engine computer into believing the DEF is still operating, allowing the engine to continue to run.
What exactly does “service exhaust fluid system” imply?
When a Diagnostic Trouble Code (DTC) relating to the DEF system is set, it is viewed as tampering with the system. When a DTC connected to the DEF system is recognized as an Emission Control fault, the Service Emission System (Not-Tamper) displays.
On a 2016 GMC Sierra, how do you reset the computer?
The battery cables must be removed from the battery. Allow them to cool for a few moments before touching both cable ends together and holding them for around 20 seconds. Remove the cords for 30-60 minutes before reconnecting everything. The computer will now behave as it did when it was originally turned on.
When the DEF light flashes, what does it mean?
When the DEF light flashes in tandem with the Check Engine Light, it means the DEF level is severely low and you will have to derate. After refilling the DEF tank, normal engine power will be restored. You basically ignored the DEF light when it was blinking, and now you have to refill the tank before you can do anything else.
Is it possible to add DEF while the engine is running?
No, just let the tank run as dry as possible before refilling it. Because DEF is a pure chemical, it is not necessary to clean out your bulk storage tank unless it is contaminated. It is possible to blend DEF from different API-certified suppliers.
How can I determine my DEF level?
Taking a look at the DEF levels. On a truck, the storage tank is normally located adjacent to the diesel fuel tank, or near the spare tire location on a vehicle. Every vehicle with a diesel engine that meets EPA criteria from 2010 or later has a dashboard warning device that warns you when the DEF level is low.
Is it possible to put too much DEF fluid in?
DEF is a 32.5 percent high purity urea and 67.5 percent deionized water mixed aqueous urea solution used to minimize pollutants in newer Tier 4 Final diesel engines. Because DEF is injected directly into your SCR system, quality monitoring is essential for optimal equipment performance.
Poor DEF can damage components, cause equipment failure, and violate the manufacturer’s warranty, resulting in high repair expenses. When the quality of the diesel exhaust fluid deteriorates, you may notice higher DEF consumption or less DEF efficacy, as well as equipment failure, SCR system failures, or component damage.
COMMON DEF PROBLEMS
The following factors can have an impact on the quality of diesel exhaust fluid:
- Crystallization can occur due to a number of factors, including overdosing and hard water top-ups. When too much DEF is introduced into the system, it may not entirely hydrolyze, resulting in crystalized deposits in the exhaust or injector nozzle. Overdosing can be caused by a partially open DEF injector nozzle, clogged DEF lines, or a malfunctioning DEF pump. Hard water can cause scale or deposits in your DEF system if you top it off with it.
- Contaminated DEF can cause abrasion of the DEF pump due to dirt or metal contamination. When DEF is used incorrectly, it can cause dirt, rust, and tank scaling.
