2018 5.0L - Engine Rattle Noise On Deceleration And/Or Acceleration ***TSB 18-2354***
01-26-2019, 10:33 PM
#511
It surprises me as well, but I haven't found a 3.5 yet with broken guides. The 5.4 on the other hand... broken plastic all over the place. Might as well plan on pulling the oil pan any time you do chains on those. Despite all of that broken plastic I have never seen or heard of it actually causing an issue. Many years ago I did have a Toyota truck that rattled constantly for 50k miles or so until it finally wore through the timing cover to the coolant passage. Despite all of that aluminum going through the engine and coolant in the oil for a short period of time, we changed the timing cover and the oil and put another 100k on it before eventually selling it. Still ran great when we sold it at arounf 250k.
I've heard the noise over and over again and it is the chain. My point this whole time is the fact that the chain is moving that way means the tensioners are not up to the task. They put those tensioners on knowing the specifications of the phasers and their maximum angular velocity. If the phaser motion is inducing adverse movement in the chain, and Ford uses a TSB to modify the calibration to slow down how fast the phasers move... to reduce chain lash...so the noise is not heard, they are masking the problem. I don't have Ford's documentation on it, but it's pretty easy to deduce.
01-26-2019, 10:35 PM
#512
I have never denied that. Several months ago you can find a very heated argument between myself and another member who was adamant that it was the actuator making the noise and not the chain. I argued that it sounded like a chain hitting a guide to me. Quite a few others agreed with him. I still think it probably is the chain, but until I see actual evidence of it being a chain I certainly won't present it as fact or presnt the theories I form around it as fact.
I've said what I need to say. Won't say anymore.
01-26-2019, 10:45 PM
#513
Long term value issue
An engine rattle may or may not be causing harm now, And no one can really say. It’s not sound reasoning to say this isn’t a problem since there are no engine failures presently, or normal condition since a handful of other trucks do it, or any other excuse, because that’s not the measuring stick that matters here. I just don’t like the long term prospects on the value of this vehicle with any sort of engine rattle. It’s just not acceptable period. Who in their right mind would buy or pay full market on a used vehicle that the engine rattles at all? Not to mention my preference to drive an engine that doesn’t rattle, there are many examples of trucks and other vehicles that don’t have the rattle. It’s reasonable to expect a new vehicle to not rattle like this. It’s unteasonable to expect new vehicle owners to put up with it, and eat the loss in value. That’s the problem here.
i don’t care if people can ignor it good for them. I didn’t sign up for a rattle bucket. But I sure got one now.
Last edited by ninjamac; 01-26-2019 at 10:55 PM.
01-26-2019, 11:23 PM
#514
An engine rattle may or may not be causing harm now, And no one can really say. It’s not sound reasoning to say this isn’t a problem since there are no engine failures presently, or normal condition since a handful of other trucks do it, or any other excuse, because that’s not the measuring stick that matters here. I just don’t like the long term prospects on the value of this vehicle with any sort of engine rattle. It’s just not acceptable period. Who in their right mind would buy or pay full market on a used vehicle that the engine rattles at all? Not to mention my preference to drive an engine that doesn’t rattle, there are many examples of trucks and other vehicles that don’t have the rattle. It’s reasonable to expect a new vehicle to not rattle like this. It’s unteasonable to expect new vehicle owners to put up with it, and eat the loss in value. That’s the problem here.
i don’t care if people can ignor it good for them. I didn’t sign up for a rattle bucket. But I sure got one now.
01-26-2019, 11:58 PM
#515
You have a startup rattle and off throttle rattle. Your truck sounds pretty rough compared to the others with just the off throttle rattle.You most likely do have a tensioner issue. The startup rattle gives that away. You need to get the front cover off and replace the guides and tensioners one way or another so you can get on with enjoying the truck you have paid for. It's not that bad of a job really if you cant get worthless Ford to do it. What we need to understand is no one is EVER going to care about YOUR problem more than you do... that's why we are all driving around with rattly trucks with no one giving a crap about it but us. Ford doesn't care... The service departments do not care. I guess someone is going to have to start turning wrenches.
yep they don’t give a rats behind now that’s they got my money. Boy the sales people trump up these trucks to be the best thing in the world and then poof you are worth nothing. But I tell you what this whole crapola experience is factoring into my decision on which truck I buy next. And theres enough guys ask about this shiny F150... and they also ask what the heck is up with that rattle... just sayin it’s hard to explain oh it’s normal. It sure doesn’t make me feel good about this expensive pile of bolts.
01-27-2019, 10:01 AM
#516
thankfully no startup rattle. No engine rattle until about 1 minute after starting, when the vct is unlocked.
yep they don’t give a rats behind now that’s they got my money. Boy the sales people trump up these trucks to be the best thing in the world and then poof you are worth nothing. But I tell you what this whole crapola experience is factoring into my decision on which truck I buy next. And theres enough guys ask about this shiny F150... and they also ask what the heck is up with that rattle... just sayin it’s hard to explain oh it’s normal. It sure doesn’t make me feel good about this expensive pile of bolts.
Sorry I thought you had a startup rattle too. A cold start rattle is a chain tensioner most likely or a stretched chain or something. Your rattle does seem to carry on more than others. Mine is a short rattle exactly the same every time a 3 blip rattle. I'm going to wait out and see what the issue is. Most likely it will be fine in the short term. I will probably tear into it myself if it does turn out to be tensioner/chain related and not tune related causing it. If you go through the dealership it will probably be a few week ordeal. And you will probably get your truck back with scratches and dents in it. I can have it done in a day and a half after I get the parts together. Just waiting to see. I don't want to jump the gun on a repair that doesn't fix anything. I don't think all of these tensioners are bad. If it is a tensioner problem it's because the phasers are jacking things around too much and maybe the tensioner isn't adequate for the application. So I also don't want the same parts replaced to have the same problem happen again. And if it can be tuned out. I am all for it.
Last edited by RJ06FX4; 01-27-2019 at 10:05 AM.
01-27-2019, 10:16 AM
#517
Senior Member
Yep I have had 3 guys at work ask me about my truck because they were looking at buying one. I tell them all about the problems.So they won't buy one. 2 birds with one stone. Saving people from issues and costing Ford sales. Makes me feel warm inside.
Sorry I thought you had a startup rattle too. A cold start rattle is a chain tensioner most likely or a stretched chain or something. Your rattle does seem to carry on more than others. Mine is a short rattle exactly the same every time a 3 blip rattle. I'm going to wait out and see what the issue is. Most likely it will be fine in the short term. I will probably tear into it myself if it does turn out to be tensioner/chain related and not tune related causing it. If you go through the dealership it will probably be a few week ordeal. And you will probably get your truck back with scratches and dents in it. I can have it done in a day and a half after I get the parts together. Just waiting to see. I don't want to jump the gun on a repair that doesn't fix anything. I don't think all of these tensioners are bad. If it is a tensioner problem it's because the phasers are jacking things around too much and maybe the tensioner isn't adequate for the application. So I also don't want the same parts replaced to have the same problem happen again. And if it can be tuned out. I am all for it.
Sorry I thought you had a startup rattle too. A cold start rattle is a chain tensioner most likely or a stretched chain or something. Your rattle does seem to carry on more than others. Mine is a short rattle exactly the same every time a 3 blip rattle. I'm going to wait out and see what the issue is. Most likely it will be fine in the short term. I will probably tear into it myself if it does turn out to be tensioner/chain related and not tune related causing it. If you go through the dealership it will probably be a few week ordeal. And you will probably get your truck back with scratches and dents in it. I can have it done in a day and a half after I get the parts together. Just waiting to see. I don't want to jump the gun on a repair that doesn't fix anything. I don't think all of these tensioners are bad. If it is a tensioner problem it's because the phasers are jacking things around too much and maybe the tensioner isn't adequate for the application. So I also don't want the same parts replaced to have the same problem happen again. And if it can be tuned out. I am all for it.
My dealership has pretty competent techs, so if a parts solution eventually is required, I'll just have them do it.
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RJ06FX4 (01-27-2019)
01-27-2019, 05:24 PM
#519
there have been a few occasions that this has happened to me too.. Not often but there are a few times my truck did it all the way home from the office.. :/
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RJ06FX4 (01-27-2019)
01-27-2019, 05:44 PM
#520
So question...
Has anyone noticed a change in their fuel mileage/consumption after having the TSB done for the rattle?
Has anyone noticed a change in their fuel mileage/consumption after having the TSB done for the rattle?