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Thread: DEF Disaster
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12-23-2020, 03:47 PM #31
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12-23-2020, 03:50 PM #32
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So, there are clearly a lot of folks more experienced and more knowledgeable about the DEF systems than I. I wonder, since DEF effectively removes all of the usual diesel exhaust odor (at least on my truck), if you had a DEF pump or injector failure, might you smell diesel exhaust where it did not smell before?
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12-23-2020, 04:04 PM #33
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The Motorcraft DEF jugs are 2.5 gallons and I bought a couple of Ford's screw on flexible funnel thingies to use. You basically screw onto jug then the other end pushes tight into the DEF filler neck. Lift the jug and it flows with no spillage. If it won't hold the entire jug it will stop flowing and you just lower the jug and what ever's in the hose will flow back into it and the tank. I've never had any dribble. When the gauge reads 1/2 tank mine take one jug to read full again.
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12-23-2020, 04:08 PM #34
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12-23-2020, 04:29 PM #35
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Man, sorry to hear this. I am with the others, never trust the dealer mechanic, verify everything they say.
Thank God for my 5.9, I don't have to worry about this stuff.
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12-23-2020, 05:07 PM #36
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From a DEF brand standpoint, Peak or factory DEF? A lot of places here sell Peak Blue DEF. Have not seen Platinum. But am going to be more than cautious from now on as I've been buying generic brand or pump. No more.
Are the RAMs more sensitive to cheap DEF?
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12-23-2020, 06:01 PM #37
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Def
I ALWAYS carry a six-gallon DEF container in the bed of the truck. I have two six-gallon containers, as well as two 2 1/2 gallon containers. When they get close to empty, I head to the truck stop to fill them up at the pump.Not only is is safer, it is cheaper, and, if I'm in the middle of no where, I lways have DEF. https://www.amazon.com/VP-Gallon-Pat...s%2C187&sr=8-6
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12-23-2020, 06:13 PM #382021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
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12-23-2020, 06:51 PM #39
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DEF has been on my list of things to be paranoid about ever since I spent a ridiculous amount of money on a modern diesel engine. A couple friends have been pushing me to delete the DEF system so let's think about what DEF does...
My understanding may be completely wrong, but the way I understand it is like this: The exhaust fluid is injected into the exhaust stream to reduce nitrogen/oxygen compounds. That is a good thing. Please don't misunderstand and think that I believe that emissions control is not important. But think about how this affects our daily life. The DEF is injected in the exhaust stream. That means that the entire system is located after the engine. There is no way that a DEF malfunction can damage the engine!
So what is the problem with a DEF system malfunction? It is entirely computer related. If the computer detects a malfunction, it will operate the engine differently. (Up to and including derating power and the dreaded limp mode) Somebody please correct me if I am wrong in my understanding that none of this can physically damage the engine.
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12-23-2020, 07:06 PM #40
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Part two of my previous post:
So, following that thinking, all we have to do is fool the computer and we don't need the DEF system at all. That's the easy part. The hard part is the ethics of removing a system that does something good. I won't address that, but there are legal implications as well. There are stories that getting caught with a DEF delete can result in large fines. While that may or may not be true, that is a good thing. People need to "encouraged" or scared into doing the right thing. The next step if too many people get away with deleting the DEF system is that we will all be required to go through emissions testing again. (Pretty inconvenient...)
The reason that diesels don't need to be tested is because the States believe that the onboard computer will enforce the law.
Again, I am not promoting one course or the other but understanding the game is important.
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