Ok so some may know about this some may not but it is something that is coming on strong with many showings at dealerships across America. So as most know it is timing chains that are prematurely stretching causing this startup noise. The news is that there is updated parts out there to address this and Ford now has a TSB on this issue formally admitting to it being a common problem. I go over it all in this video. There is also a link to just how it sounds in the description of the video on youtube. Hopefully more dealers will be willing to dive into the engine with some guidance from Ford now.
Ford F150 3.5L Ecoboost Rattle Upon Start Up- Timing Chain Stretch Issues TSB
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makuloco2000
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Pulling the timing chains and doing the work yourself if you can is not that difficult. For a do it yourselfer it can be done in your driveway in a Saturday and Sunday. Or if you have mechanical skills prepare for a long day. Parts are like 100 a phaser give or take, secondary chains and gears, primary chains, new intake VCT bolts and exhaust VCT bolts(2ea) some seals which isn't a big deal, a harmonic balancer puller, and some gasket prep and RTV. Honestly I couldn't see paying the dealer the do this work after having now pulled two sets. One on a stand and one in the truck with Radiator and everything still in there. It comes down to money and if you are dedicated to the task. For $16.95 you can grab the workshop manual from alldatadiy.com. Easy peasy.
Old motor 2014
New motor in other pics for reference is a 2016 with updated parts.
Old motor 2014
New motor in other pics for reference is a 2016 with updated parts.
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amsoil uses the drain back as the OEM does. I ran 50/50 amsoil motorcraft filters and old timing chains showed no change in wear from assembly
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Issue is our filters are horizontal which means you can't prefill which means you should be holding the gas pedal down to prevent truck from starting but allow the oil system to prime...
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^^^^^this helps especially when using a filter that sucks it has no drainback prevention
There is no way i'm going to do the oil pressure build-up procedure before i start the truck every time... in fact if it was an oil pressure problem related to drain out, wouldn't it basically do it every time someone changes their oil and doesn't do the pressure build up procedure?
maybe i still don't quite understand the root cause going on here... is the fundamental problem that the chain has actually stretched too much from unknown causes, or is the problem that oil is not being held in the top end somewhere so there is lack of pressure on the timing chain tensioner and even under "normal" chain stretch conditions you get the clicking?
maybe i still don't quite understand the root cause going on here... is the fundamental problem that the chain has actually stretched too much from unknown causes, or is the problem that oil is not being held in the top end somewhere so there is lack of pressure on the timing chain tensioner and even under "normal" chain stretch conditions you get the clicking?
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The noise has nothing to do with the timing chain at all. It is the VCT phasers that make the rattling noise.
do you have source for that? thats not my understanding at all: according to the video and the click click click is from the timing chain slapping metal casing because one tensioner on it doesn't have enough oil pressure so its slopping around in there.
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I do have a source for that as I've had mine fixed under warranty and they replaced all 4 noisy VCT phasers and did the timing chain that wore out due to the phasers being ****.
You're pretty late to the party man. It's been 2 years since the original timing chain only tsb came out then preceding tsbs all change the phasers out as everyone that only had a timing chain done was back to the dealer within 2 weeks cause the thing was still rattling away.
You're pretty late to the party man. It's been 2 years since the original timing chain only tsb came out then preceding tsbs all change the phasers out as everyone that only had a timing chain done was back to the dealer within 2 weeks cause the thing was still rattling away.
if its solely phaser wear out related and not oil pressure, timing chain tensioner related... why is it that some of us have it happening sporadically without any pattern or frequency increase over the course of a year I've been tracking it? would expect a wearing part to strictly be getting worse/noisier as it continues to wear poorly?
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I highly believe it was due to bad casting debris that blocks the phaser oil inlets and thus the phasers get noisy and starve for oil on start up which in turn adds stress and wear on the timing chain. Once the timing chain wears the tensioner over extends etc. There have been pictures that have shown the phaser inlets partially blocked with a Sandy like substance thus reducing oil flow and starving them.
if that's the case though, a new chain only that isn't stretched would at least mask the problem again for a while, you wouldn't expect the noise to come back until the new chain is stretched out again. that wouldn't happen in just a few days/weeks like some guys have reported. is the noise coming from timing chain slap or the actual phasers? I'm not sure what you're saying now.
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The noise isnt caused by the chain!!!! It"s the phasers!
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It might be worth running a dose of this through the engine (for the life of one oil change) maybe every 20k miles. The Original Stiction Eliminator - Hot Shot's Secret
It was developed for International to deal with diesel injectors (the oil side) but you can use it in your gas engine too. If there really is something getting gunked up in there that's blocking oil passages, this may help. And good for your turbo bearings too.
"Originally created for International Truck and Engine, Hot Shot’s Secret is a formula made from a combination of detergents and dispersants, which can be added into new or used motor oil. Hot Shot’s Secret then works to remove build-up caused by the coking and varnishing left behind from overheating the engine’s oil."
It was developed for International to deal with diesel injectors (the oil side) but you can use it in your gas engine too. If there really is something getting gunked up in there that's blocking oil passages, this may help. And good for your turbo bearings too.
"Originally created for International Truck and Engine, Hot Shot’s Secret is a formula made from a combination of detergents and dispersants, which can be added into new or used motor oil. Hot Shot’s Secret then works to remove build-up caused by the coking and varnishing left behind from overheating the engine’s oil."
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I noticed a few things while tearing down my new motor. 1- there is a ton of burrs where machining was done. Some of the parts I could literally flake off with my finger. Now if that were to fall off into the engine fitting assembly of the heads to the block, there you have it. It was surprising how much need deburring that wasn't done. Just a thought to piggyback on this comment.
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Welcome to the community, KennewickMan! 
My name is Tricia, and I’m one of the U.S. Ford Customer Service Representatives on this forum. We will be here to assist with any questions or concerns.
If your vehicles are experiencing these symptoms, we recommend that you take them to any Ford Dealership in your area. You can find a dealership, here. Be sure to PM us your VINs along with your mileages. We will be happy to see how we can best assist!
I’m just checking in on you. Was your concern resolved or is your vehicle still at the dealer?
Tricia
My name is Tricia, and I’m one of the U.S. Ford Customer Service Representatives on this forum. We will be here to assist with any questions or concerns.
Hey Ford Family,
If your vehicles are experiencing these symptoms, we recommend that you take them to any Ford Dealership in your area. You can find a dealership, here. Be sure to PM us your VINs along with your mileages. We will be happy to see how we can best assist!
Malinois11,
I’m just checking in on you. Was your concern resolved or is your vehicle still at the dealer?
Tricia
Did anyone ever get this covered under the emissions warranty? I called Ford of Canada and they state it's not covered only a few parts would be under that warranty and none of them are on the list so I'm SOL. The truck literally has 104,000km on it just came off warranty and not even a notion of help from the dealer or Ford on this. I don't know if the almost 4K in fixes is worth it at this point in time if it's not going to be covered on a knowin issue with these engines failing.
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