2011 ecoboost noise on start up
09-23-2014, 10:35 PM
#391
Senior Member
No worries. The only reason I know about the Flex is because I almost bought one in 2009. Wanted the Ecoboost so I had to wait till the 2010 model year. Until a friend told me about the SHO... 
Yeah - it's probably not good but I wonder why those that have replaced the chain + tensioner still experience the noise? Including Cord who has had multiple replacements and it still does it. That makes me wonder if it's not the chain, tensioner and something else internal to the engine. Not sure but that would explain it.
I really hope someone gets to the bottom of this for all our sakes. If I got the answer some got that it's OK, I'd be towing as much as I can up as many hills as I can as frequently as I could hoping for it to blow up. Don't abuse it too much but make it work hard!
Whatever it is I don't buy Ford's reassurance that it's not damaging the motor. Cord already stated what happens next in this process with the engine throwing an error code and going into limp mode. So between what I am hearing now and the total failure Cord and others have experienced there is definitely damage occurring in between...
I really hope someone gets to the bottom of this for all our sakes. If I got the answer some got that it's OK, I'd be towing as much as I can up as many hills as I can as frequently as I could hoping for it to blow up. Don't abuse it too much but make it work hard!
09-23-2014, 11:05 PM
#392
Senior Member
Just for the record... I haven't had my chain replaced for the second time. My replacement chain is about to the point of Huntrig's. I'm consistently getting the rattle once, sometimes twice a day. I think it briefly went into limp mode this morning, but I'm not certain. Got one year and about 30,000 miles out of the second chain, but they did not replace my tensioner. I was really hoping the culprit was the tensioner, now I fear it's something else.
09-23-2014, 11:08 PM
#393
Senior Member
Yeah - it's probably not good but I wonder why those that have replaced the chain + tensioner still experience the noise? Including Cord who has had multiple replacements and it still does it. That makes me wonder if it's not the chain, tensioner and something else internal to the engine. Not sure but that would explain it.
#1. The Video he refers to as being the exact same noise is here:
This is the same noise our trucks are making.
#2. Notice how when Ford dug deeper they found (original post)
Hey guys. Got my truck back with the work order. It says gears and chain worn bad. Removed mains and rods, mains worn bad. Cam caps and cam worn. They gave me a new long block and gaskets. Hope this helps. Sounds like a major issue, btw its a 2011 fx4 ecoboost
Hey, yeah mention everything I said it was right from the work order. That bill was over 14k, hope it works out, there is definitely a motor issue.
Its only a common problem in the winter for some reason. The engine has to be fairly cold. but like I told u guys in my previous post, when I had the noise, the dealer pulled the motor apart to find
-Gears and chain worn bad
-Removed mains and rods, mains worn bad
-Cam caps and cam worn
Motor was replaced with a new short block from ford, if your noise is a loud chatter for 3-5 seconds on startup only, this are most likely your issues, not a vacuum pump
-Gears and chain worn bad
-Removed mains and rods, mains worn bad
-Cam caps and cam worn
Motor was replaced with a new short block from ford, if your noise is a loud chatter for 3-5 seconds on startup only, this are most likely your issues, not a vacuum pump
Last edited by huntnrig; 09-23-2014 at 11:39 PM.
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itguy08 (09-24-2014)
09-24-2014, 01:43 AM
#394
If the camshaft caps are worn then perhaps they are part of the problem...
Suppose there is a tolerance fault on the camshaft(s), over time causing wear on the sides of the caps. As the gap widens the shaft moves, bring the gear and the chain with it until it interferes with the block/shaft mount. The noise we hear is the chain rubbing until oil pressure builds back up inside the valvetrain pushing the camshaft back out.
Not exactly V-TECH but hey, maybe Honda ran into this issue before...
Suppose there is a tolerance fault on the camshaft(s), over time causing wear on the sides of the caps. As the gap widens the shaft moves, bring the gear and the chain with it until it interferes with the block/shaft mount. The noise we hear is the chain rubbing until oil pressure builds back up inside the valvetrain pushing the camshaft back out.
Not exactly V-TECH but hey, maybe Honda ran into this issue before...
09-24-2014, 01:57 AM
#395
All very interesting stuff here and I must say it has me a little worried since it seems to be happening frequently.
Just one thing - the Flex and Taurus didn't get the Ecoboost until the 2010 model year. So anyone with a 2009 (the second link posted from fordflex.net) has the regular 3.5.
Another thing that maybe worth noting is that since it only happens on cold starts - I wonder if there is something else in the oiling system that is allowing pressure to bleed out? A stuck check valve or something like that? I would think a stretched timing chain would do it hot or cold but something allowing pressure to bleed out could definitely cause a rattling noise.
I know my SHO will make some weird rattling noises (more like a lifter tap) on some starts. Goes away in less than a second and has been doing it for a long time now. Consensus on the SHO forums is it is the HPFP rattling on startup.
This is definitely one to to watch carefully. Ford, you need to step up to the plate on these and figure out what is going on!
Just one thing - the Flex and Taurus didn't get the Ecoboost until the 2010 model year. So anyone with a 2009 (the second link posted from fordflex.net) has the regular 3.5.
Another thing that maybe worth noting is that since it only happens on cold starts - I wonder if there is something else in the oiling system that is allowing pressure to bleed out? A stuck check valve or something like that? I would think a stretched timing chain would do it hot or cold but something allowing pressure to bleed out could definitely cause a rattling noise.
I know my SHO will make some weird rattling noises (more like a lifter tap) on some starts. Goes away in less than a second and has been doing it for a long time now. Consensus on the SHO forums is it is the HPFP rattling on startup.
This is definitely one to to watch carefully. Ford, you need to step up to the plate on these and figure out what is going on!
By that I mean try to isolate the source of the rattle, by using a stethoscope or a screwdriver pressed against the pump and your ear, or a voice recorder.
09-25-2014, 11:07 AM
#397
Senior Member
My truck hasn't made the noise the last 2 mornings because it didn't get to sit long enough, it was driven quite a bit. This truck also has a miss and flat spots at WOT. I've contacted the selling dealer and have spoken with their service manager in depth, he's now looking into this for me as well...
Here is a video with the a compilation of cold starts over the last couple weeks.
Here is a video with the a compilation of cold starts over the last couple weeks.
09-25-2014, 11:32 AM
#398
Junior Member
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Anybody had any luck elevating this issue? I've been dealing with my local dealership for months on this problem and they haven't done anything other than change the oil. Last I was told was that "Ford hotlline won't let them do anything else and told them that this problem will not cause damage to the engine." They have heard the noise multiple times in the couple of weeks that they have kept my truck (exact noise provided in the videos, only happens at startup). I'd like to get it fixed since I only have a couple thousand miles left on the warranty (2011 ecoboost). I just don't know what else I can do since the dealership seems to be done with even attempting to solve the problem.
09-25-2014, 12:20 PM
#399
Senior Member
Anybody had any luck elevating this issue? I've been dealing with my local dealership for months on this problem and they haven't done anything other than change the oil. Last I was told was that "Ford hotlline won't let them do anything else and told them that this problem will not cause damage to the engine." They have heard the noise multiple times in the couple of weeks that they have kept my truck (exact noise provided in the videos, only happens at startup). I'd like to get it fixed since I only have a couple thousand miles left on the warranty (2011 ecoboost). I just don't know what else I can do since the dealership seems to be done with even attempting to solve the problem.
Unfortunately, I don't believe Ford when they tell you (or me) that this doesn't damage your motor. That sound is a lack of lubrication to moving metal parts. It will eventually throw an error code related to this which is P0016. Cord has already documented this and had the timing chain repaired, once as well as other members who have claimed the fix didn't fix the problem.
Between the noise starting to occur and total failure there is damage being caused in between. If you read my post (#393) you'll see that when another member had this exact same issue last year he received a new motor after his Ford dealer inspected the bottom end of the motor and found it was damaged too.
To help everyone out I would suggest getting a couple video recordings of the sound and uploading them to YouTube. Ford wants to ignore the video documentation we're providing so we need to continue making them to the point where hundreds of them blanket the search engines.
Last edited by huntnrig; 09-25-2014 at 01:49 PM.
09-25-2014, 05:17 PM
#400
There is defiantly motor damage taking place, my truck has developed a terrible tapping noise that sounds like a rod bearing to me. Its in a different shop now and they are making progress.