2018 5.7 Ticking

Any one have luck replacing VVT sensors in helping this 12v cummins tick.

 

Since when does any fuel have water in it?!? Gasoline and water do not mix. Please stop spreading false information.

 

That's VERY funny! A.) "Flex-fuel" is an ethanol-mix fuel, which uses a holy shit-ton of water to make it that way. B.) Underground fuel tanks have cracks in them. (Leaks)

You're joking, right?

 

No I’m not joking. Do a bit more research and you will find that ethanol is dehydrated before it can be used to burn in a gasoline engine. This means the water is completely removed. As far as leaks in tanks, water intrusion would still not mix with the gasoline, it was separate to the bottom of the tank. Water is heavier then gasoline and oil.

 

Andy, I don't need to convince anybody; it's just what I've noticed. I'm not a salesman, just trying to better the knowledge pool.

I keep little maintenance notebooks on all of our 5 vehicles, and 20 + motorcycles. It puts money in our pockets down the road, and has paid off.

Grab a couple cases of Mobil-1 (5) quart jugs, and document what you do and when.

There's a little additive for rear ends of trucks, cars, and motorcycles that is literally magic. We are in an age now where FTF research, personal work, and internet search pays off exponentially in ways that our forefathers needed 50 years of garage talk to accumulate.

I don't really care if you ignore me, and go on with your oil changes as usual. The OP is looking for solutions.

 

Saved for posterity. Hilarious!

 

Ethanol absorbs water from the air and pulls it into the fuel. A known non junk science fact. Even10% or higher blends will absorb water. Plenty of good info out there on this subject. I learned about it in 6th grade science class in 1967.

 

I agree that if gasoline with ethanol in it is exposed to moisture it will absorb it. However when this happens the water will sink to the bottom of the fuel tank, taking some of the ethanol with it. Your engine will not run on this water/ethanol mix when it sucks it up from the bottom of the fuel tank.

The reality of this subject is, gasoline is sealed from the atmosphere in modern vehicles and while it is being stored before it gets to your fuel tank.

Bottom line is moisture in gasoline/ethanol is not something to be concerned about at all unless you are storing that fuel in unsealed containers, which is very dangerous due to the fuel vapor that will evaporate into the air.

 

....until that water in the fuel gets to the electronic fuel pumps. Easy solution; https://www.pure-gas.org

https://www.edmunds.com/fuel-economy/e85-vs-gasoline-comparison-test.html

E85 only costs about 10% less, but returns 25-30% LESS MPG ratings. As the Edmunds test showed with a 2007 Tahoe FFV (probably a 5.7 or 5.3 motor) E85 costs more at the pump, eventually, AND you have to stop more often! Just eliminate ALL the ethanol in your fuel tank and see if the ticking gets more quiet, or goes away altogether.

Oil fields, to the refinery, into a tanker hauled X-country by truck or train, and THEN dumped into your local fuel stop. No water, or other contaminants? "...sealed from the atmosphere.." is not reality. It's a great idea and the marketing behind "top tier gasoline" pricing and profits.

 

I think you’re missing my point. I am not recommending anyone run E85. I personally own a flex fuel tundra and would never run E85 myself. However I do run 10% ethanol fuel mainly due to price.

I am simply stating that one of the reasons to avoid E85 or any amount of ethanol is not water the absorption of water.

As far as fuel being sealed from the atmosphere, this is definitely not a marketing tactic. It’s the law... For over 20 years every vehicle sold in the US has been equipped with a sealed fuel system and a monitor that checks for leaks in that system. Similar principles are used while that fuel is being stored and transported before it reaches your vehicle.

 

Sure, you honestly think that a fuel (ethanol) which requires 7 gallons of water to produce every 1 gallon of it, has zero water in it at process end. [ Heet, is a product which does nothing but remove WATER from fuel systems is literally sold by the semi-truck load every year, as a result of there being WATER in our systems for decades now.] This is not a new idea, or my personal theory.

Yes, you have bought the marketing tactic to pay MORE $$$ for an idea of "top tier" fuels. In the railroad business we call them "oil trains", which are the trains running nothing but oil tankers to the refineries, and then back up north again. If you believe that these tanker cars are somehow sealed as if from a laboratory, and delivered w/o any imperfections? Have you ever seen an oil pipeline cleaned out with a slug-plug, in between their runs of different fuels? Laws, or now laws, it's about $$$ and how it acts like grease.

Your point is that the OP is hearing the ticking as result of a ....? What?

 

I already went over how ethanol is dehydrated after it is made, this is a process that removes all of the water from the ethanol..... Products like heet do not remove the water, they absorb the water and allow it to mix back in with the gas and be burned instead of sinking to the bottom of the fuel tank and freezing in cold weather and causing running issues with the vehicle.

I can’t speak to how oil trains work but I can tell you that tankers that transport the fuel to your gas station and your gas station tanks have vapor recovery systems(look it up). These are sealed systems just like your cars gas tank.

As far as the OP I would say first try running a higher octane fuel like 91 or 93. I have noticed on my own tundra that the engine idles quieter when I run premium. This is likely due to the higher octane having less detonation.

 

Wrong, on so many counts it's another one for posterity....

Yeah kid, I used to run the oil trains down the spine. You don't know ethanol, gas, or engines it looks like so give the OP a break with the bad advice, OK.

Ethanol free fuel. Period. If that doesn't quiet the knock go to a high quality synth. oil like Amsoil or the Shell T6.

 

Wrong about what exactly? I’m sure you used to do a lot of things but that doesn’t mean things haven’t changed or that you know everything. I’m starting to severely question your knowledge and advice on this forum. Please explain to me how exactly the presence of any ethanol is gasoline is causing an engine knock? I’m starting to think that you just have a person issue with ethanol... lol

 

Run oem 0-20 and dont look back the ticking is normal. It goes away and comes back in mine depending on temp. When i run 93 the ticking is less. My guess is the timing can lean out without knock sensor interference

 

This thread is golden. Mobile 1 burns off? Wow. Oil trains have sludge? No shit that's why it's going to a refinery.

Ethanol causing noise? Maybe you're thinking of knock/detonation? Which is actually octane related.

Ticking could be valve lash, detonation, VVT, exhaust leak, piston slap etc etc. Hard to say without hearing it.

 

Another saved for posterity!?! LOL!


Here's the TSB.


https://static.nhtsa.gov/odi/tsbs/2013/SB-10061328-2273.pdf FFV ENGINEs choking on the fuel/mixture ratio.

Ethanol causes all kinds of problems, and all kinds of IDIOTS want to defend it, still not sure why.....


Who said "oil trains have sludge"? Nobody here, that's who, but you.

 

That TSB is related to the amount of fuel being injected into the engine due to a miscalculation by the engine computer. What does that have to do with a ticking sound from the engine?

 

Ethanol sucks. Bit what is being stated about its properties is bunk.

 

Really?

You BELIEVE the Toyota Engineers who are behind the TSB "fix" are bunk? DO you know where the standards and practices are at, with ethanol, as far as the Oil & Gas industries are? The bottom.

Now, as far as moonshine is concerned it's a bonafide winner, if you take out that additive so we do NOT want to drink it.

 

These engines are noisy. i drive it like i stole it and no issues 65k miles. If it detonates on me, i have 100k warranty. My friend had a nice f150 with 5.0 babied the crap out of it. his engine lost a rod out of nowhere . Oil change every 5k too. With that said,
I’ve noticed that it is louder with 87 kroger vs 93 shell.

 

Back during the Greatest Generation's War to end the War to End All Wars, leading edge technology for squeezing every last little pony out of high performance aircraft engines included carefully controlled WATER INJECTION! How bad can water in your gasoline be?

Of course, the water injection was available beyond a detent on the throttle lever which was labeled "Emergency Military Power". If you had to pass the detent to escape a Focke-Wulf 190, they would overhaul the engine after you got back.

 

The first 5 oil changes I used Mobil 1 Full Syn 0-W20 and my Tundra sounded like a Diesel Truck. So on my last oil change this weekend I used Valvoline Advanced 0-W20 Full Syn and the noise was reduced significantly, and to me my Tundra runs better on the Valvoline. It seems free'er 87-93 octane every 3rd full up i use 93.