What happens if you put Def in the fuel tank?
Damage to a diesel can be linked directly to the amount of DEF allowed into the fuel system. Only a teaspoon and the system may be OK. More than that and the engine will be in trouble. DEF is denser than diesel fuel and will settle to the bottom of the fuel tank. DEF will rust the tank, further contaminating the system.
Can a diesel engine be contaminated with Def?
Misused, an operator could be facing a disastrous problem. DEF is a solution of urea and water. Diesel fuel and water-based DEF have different densities and will not mix. If an operator expects DEF contamination in the fuel system, do not drive and do not start the engine.
How do you clean Def in diesel tank?
DEF in the diesel tank will take several steps to clean: Every heavy-duty truck and pickup will have different stages for cleaning. Access to the fuel system of an 18-wheeler is more accessible, because of the open cab design. Pickups or heavy-duty trucks may require lifting the body from the frame to gain full access.
How much does it cost to repair a Def contaminated fuel system?
The recommend repair is to replace the entire fuel system, from tank to injectors. We’ve seen reports of Ford dealerships quoting between $12,000 and $20,000 to replace a DEF-contaminated fuel system.
Someone who’s used to the routine of opening the fuel filler door and removing the fuel cap could easily have a lapse of concentration and put DEF in the fuel tank. Such a lapse would have dire consequences. This simple mistake could send a truck to the scrapyard, and, no, we’re not being overly dramatic.
Misused, an operator could be facing a disastrous problem. DEF is a solution of urea and water. Diesel fuel and water-based DEF have different densities and will not mix. If an operator expects DEF contamination in the fuel system, do not drive and do not start the engine.
DEF in the diesel tank will take several steps to clean: Every heavy-duty truck and pickup will have different stages for cleaning. Access to the fuel system of an 18-wheeler is more accessible, because of the open cab design. Pickups or heavy-duty trucks may require lifting the body from the frame to gain full access.
The recommend repair is to replace the entire fuel system, from tank to injectors. We’ve seen reports of Ford dealerships quoting between $12,000 and $20,000 to replace a DEF-contaminated fuel system.