johndog82

iTrader: (3)

I don't think there are any actual cases of a Coyote catastrophically failing or throwing a rod because of knocking. Other issues cause that to happen. If I'm wrong I'd love to have someone chime in but no one has been able to say it happened to them because of knocking and then be able to prove it. And it seems no one can explain exactly how the scoring on the cam or cylinder walls or a slightly oblong cylinder would directly cause the engine to grenade. Getting it warrantied is more for fixing the hugely embarrassing and disappointing sound than anything else, and also maybe some power is lost with a knocking engine, but that's it. Many of the late 90's ranger 4.0 OHV engines "marbled" at idle really loud at full operating temp. Mine did and had 188k on it and still ran like a top when I sold it

cvoolen

Question is, should we really HAVE to live with the knocking? We pay out of our asses for these trucks. I have 3 trucks, each with the 5.0. Obviously I realize the engines are different, but my 2012 is the noisiest of the bunch? I'm not even driving it. It's been sitting for 2 weeks. It can rot to the ground. It also has a bearing noise in the rear, and you think the dealer will ever call me back?...nope, not yet.

So for now I'll enjoy my 83 ranger with the 5.0 in it. Drives better than the newest one

johndog82

iTrader: (3)

No you should absolutely not have to live with the knocking. I just wanted to answer that guys question. I'm very glad I have a quiet 5.0 (knock on wood) and I would also do a warranty claim if that ever changed while I still have a warranty.

WestsydeGuy

I understand some are loud and knock bad.
More so my question is are they grenading or do they just knock and knock but not actually self destruct?

johndog82

iTrader: (3)

Did you see post #571?

Stech

Personally I have "heard" of 2 failures and actually "seen" one fail , it was in a 2015 Mustang , the piston cracked at under 3000 miles , I was told they they replaced the car for him, but as for the F150's I have seen some that dont knock and sound great and some of them that have the knocking, along with my own 2012 ( That I finally got rid of, another story Ill save for the end of this post) and it seems the oil consumption goes up , knocking and ticking get worse and eventually it ends up in the shop and they isolate it to a particular cylinder before a catastrophic failure. Im sure some will get a couple hundred thousand miles on this engine maybe more with the knock but it doesnt make it right.

Mine started with a knock when hot around 20K miles and progressed to getting louder along with a tick that got louder and oil consumption. Then the final straw was the addition of a "new" loud metallic tapping noise that seemed to come from low end that would come and go randomly like 2 hammers hitting each other in rotation but missing sometimes. They replaced my short block and all was great. One year and 10k miles later coming over a hill I had to jump on it and came back into town with a loud tick. Took it in and they said something about the cams and exhaust valves so Ford had them do some re-torquing and it was still there so they ordered a replacement cylinder head for the passenger side.
Truck just wasnt the same in my eyes , new short block and now the new cylinder head was very loud, you could hear every thing happening in the head on that side, ticks, taps rubbing sounds, etc. I dont know if it was a new cylinder head or reman or what.


I think that most people tend to get these in before a failure happens, between the very audible knock and tick and tapping and oil consumption they are eventually going to get them in and get a new short or long block,and then they get another 60 to 90k miles before it starts up again, if it ever even does, I think mine started earlier then most at the 20K mark.

I traded the truck and decided to go back to a car. Just have no need for a truck any more. I was new to Ford and really wanted to like Ford and this truck ,but just didnt work out for me.

Good Luck,,

WestsydeGuy

Yes and thanks very much ☺

My response was actually to cvoolen who seemed to not understand my question.
I get that some have a noisy engine.
I just wondered how many were escalating from noisy to blowing up.

Thanks for the awesome forum and thread guys ☺☺☺

cvoolen

Mine is eating approx 1.5L of oil between changes....Ford says that is within the normal oil consumption range.

9chester

I read quite a bit on this knock when I started hearing mine and I don't personally recall reading about any catastrophic failures. Mine ran fine, never felt like it was losing power or anything. But with it sounding like it did, I didn't want to take a chance on blowing a rod through the pan at 62000 mIles as would be my awesome luck. My uncle has a 2013, my dad has a 2012, and a couple guys at work have 2012s, all with the 5.0, and after listening to all of theirs mine was definitely having issues. This new motor is much quieter so I'm back to actually enjoying my truck! (well, except for the sync, of course!)

Koolponycar

Ok same here 9chester. I haven't heard of any catastrophic failures either. My truck doesn't use any noticeable oil either, Just to note though my oil change intervals are 6 months or 5000 miles whichever comes first. Some may go longer or shorter and claim 1 to 1.5 qts using so mileage may come into play. I have a catch can and usually their is a couple of tablespoons full from the blowby which all do. I never here my faint knock until the truck heats up and I have used the a/c off and on and of course with it and the fans running I can't here it from inside unless they are off. It does seem to come and go but will do it everyday when the engine warms up. I will continue to drive and monitor for any changes and will definitely take it in way before the last minute of my warranty expiring. Thanks to everyone for their sharing.