Anyone else have this? on a cold start I get a slight "rattle" for a second. Definatly on pass side. Had wife start it today with my face buried on motor. Almost sounds like the throttle body. I saw a post on the Flex forum that said they were replacing the long block :o :o
My thought would be cam phaser noise, same noise I hear on cold startup. Should be normal.
Well that makes me feel better !! Would those be the same on a NA 3.5? Wife's Explorer dont do it. Wonder why he's gettin a long block
What oil & filter do you use on the Flex? If using non-Motorcraft filter, switching back to Motorcraft may solve the rattle issue.
Royal Purple, K&N filter
It may sound silly, but check your heat-shielding around youe exhaust. My truck had a rattle on start and it was from a piece of shielding rubbing a downpipe.
+1 on the heat shielding.
I have this issue also. Anyone else ? I saw videos on Youtube saying EB F150's having timing chain stretch ???
I ran a Purolotaor Gold oil filter, and put a Motorcraft in with no changes.
I'm at 50K miles - 40K tuned my SHO otherwise operates and runs perfectly. Running Mobil 1 extended performance full synthetic oil.
I have a same rattle for 2_3 sec. Pin pointed it to down pipe location. I'm not sure if it's a shield around that area, but it seemed like it was coming from a flex pipe.
I hoped for an exhaust rattle too, but how can you tell is actually coming from the exhaust and not something else near by ?
I have something similar as well. Figured since I just had the car at Ford for an oil change they would have noticed it if something was wrong.....So I don't pay it much attention.
i have as well & like painter said, it's definitely coming fro engine on passenger side. & wicked I think your giving the dealer more credit than is due. maybe you got a good one, but the ones in stl only do what you tell them & don't look for things wrong. I think in the old days dealers did more of that as warranty work keeps their people busy, but seems maybe ford & maybe the rest are cracking down on that to keep profits up. especially with all the recall work going on.
I'm pretty sure it's the timing chain tensioner, I thought I read somewhere the new 5.0 was having the same problem. Sounds exactly like my Wife's old 02 4.0 Explorer with the bad chain rattle at startup
99% exhaust issue. My G35 Does it too.
October 20 2014 Ecoboost Cold Start Noise - Stret...: http://youtu.be/wHxCoPP_kSE
For the thread that's going right now.
Rich
Couldn't copy link from phone for some reason, so I had to start thread to share.
Could be moved to current thread on this topic... ;)
Rich
NAsty!... and not unlike the noise I described a while back...
Here's a link to a video Rich posted... It clearly illustrates the timing chain "rattle" noise even if it is in a longitudinal 3.5TT
http://www.ecoboostperformanceforum.com/index.php/topic,4188.msg65233.html#msg65233 (http://www.ecoboostperformanceforum.com/index.php/topic,4188.msg65233.html#msg65233)
Quote from: BiGMaC on January 08, 2015, 02:58:14 PM
NAsty!... and not unlike the noise I described a while back...
Thx for sharing buddy!!!
Rich
Oh wow. That's nasty sounding.
Sounds like the timing chain slapping against the VC or something. Definitely the timing chain. It goes away quickly as the chain tensioner begins to make up the slack once it is started.
I've seen others on the "ecoboosted" facebook page that last a little longer also. I can't find that video though :(
Rich
Ouch! That would scare the hell out of me if I heard that on my car. Hopefully the dealership gets you squared away.
Yep, sounds exactly like mine SHOnUup
I wonder if it's the sound made by the ratchet mechanism on the timing chain tensioner?.... it has up to seven teeth to use
If under warranty and this is occurring, I'd be going fully back to stock with the ford oil filter to see if it persists. Then to the dealer.
Rich
I agree with dealer visit, especially if a new and persistent change. However, I wouldn't wait given the GDI engine's inherent propensity for knock anyway even if only to make sure it wasn't the timing chain.
rich:
i see you are making good use of your christmas present. have only heard mine from inside the car but didn't some that bad.
Quote from: mval on January 11, 2015, 04:35:53 PM
rich:
i see you are making good use of your christmas present. have only heard mine from inside the car but didn't some that bad.
This wasn't my car or camera use. I've unfortunately only had time to spy on the kids with the GoPro shortly (lol) and read pages upon pages of instructions. Had it mounted up on the windshield yesterday for a trip into town and ran into no opportunity to turn it on. Video was just one I found to help clarify what it sounds like. Trying to get my buddy with his srt8 charger to run em for a video. But that things a garage queen. Whoever buys his car in the future will get a very well maintained and completely babied ride.
Rich
Hello, i'm new to this forum and i saw this thread, i have a 2012 Titanium ecoboost Flex and i have this start up rattle also. here is a link to a video of it
http://vid13.photobucket.com/albums/a290/dirkdiggler90504/IMG_2593.mp4 (http://vid13.photobucket.com/albums/a290/dirkdiggler90504/IMG_2593.mp4)
What oil/filter are you using?
Motorcraft 5W30 semi synthetic and a motorcraft filter
Here's another thread that might benefit you,but as you are probably aware,i would personally switchn over to full synthetic with the m.c filter and see if there is any changes and proceed from there,good luck.Z. http://www.ecoboostperformanceforum.com/index.php/topic,2178.0.html (http://www.ecoboostperformanceforum.com/index.php/topic,2178.0.html)
I just changed my oil last weekend, Motorcraft 5W30 with motorcraft filter. Now the start up rattle seems like its louder and lasts longer. maybe whatever is making the noise is giving up......
6 quarts oil? Time to take it into the shop. It may be the timing chain, it may not.
Quote from: SHOdded on February 10, 2015, 04:42:28 PM
6 quarts oil? Time to take it into the shop. It may be the timing chain, it may not.
i have brought the car in for the noise and they have said 3 times now that they cant get the car to reproduce the knock/rattle
yes, 6 quarts of oil. now i'm just thinking out loud here but the motor only really rattles loud when it has been sitting all night and now that the oil is new not broken down and obviously thicker it rattles more, so i don't think it is a bearing because the knock/rattle would be louder when the oil is thin......Hmmmmm
any ideas?
If you can speak with the service manger and tell him that the noise is only noticeable when the car is cold,and if you can to leave it overnight so you can produce the sound to them,cause if it is the timing chain it is a pita to change on these cars,they also control valve and ignition timing,know that its louder they will really take into consideration to repair it and troubleshoot it.
To give you an idea of what they look for in these situations (not exactly same scenario, but close enough):
http://www.stangnet.com/images/stories/docs/s197_TSBs/06-19-08.pdf (http://www.stangnet.com/images/stories/docs/s197_TSBs/06-19-08.pdf)
Ford F150 3.5L Ecoboost Rattle Upon Start Up- Timing Chain Stretch Issues (http://www.youtube.com/watch?v=Wt3ac_H8wL0#ws)
here is another video at another angle
http://vid13.photobucket.com/albums/a290/dirkdiggler90504/IMG_0140.mp4 (http://vid13.photobucket.com/albums/a290/dirkdiggler90504/IMG_0140.mp4)
Quote from: ZSHO on February 10, 2015, 05:39:56 PM
If you can speak with the service manger and tell him that the noise is only noticeable when the car is cold,and if you can to leave it overnight so you can produce the sound to them,cause if it is the timing chain it is a pita to change on these cars,they also control valve and ignition timing,know that its louder they will really take into consideration to repair it and troubleshoot it.
I think Z is spot on... The Timing chain can stretch and the tensioner may not be engaging properly.
Quote from: ZSHO on February 06, 2015, 10:30:16 PM
Here's another thread that might benefit you,but as you are probably aware,i would personally switchn over to full synthetic with the m.c filter and see if there is any changes and proceed from there,good luck.Z. http://www.ecoboostperformanceforum.com/index.php/topic,2178.0.html (http://www.ecoboostperformanceforum.com/index.php/topic,2178.0.html)
Update: As per the info that i read on the above thread i tried a full synthetic and a motorcraft filter and its still the same, actually it maybe worse now. I used that new Pennzoil Platinum Full Synthetic 5W30. Here is something to think about..... my car was at the dealer for almost 2 weeks when they changed out one of my turbos and when i got the car back it didn't make that noise for at least 5 days or so. So im thinking it gets better when i drive it less. its hard to say because when i have it its gets driven mutiple times a day
My rattle is similar to yours SoCal. I've been letting it crank for a few seconds by holding the gas pedal all the way to the floor then starting.
It does not rattle when you do this. So I'm assuming it's letting the engine build up oil pressure or the tensioner is adjusting durning cranking.
Makes you wonder if you should be running a detergent package of some sort via the crankcase to clear any sludge out of those tiny oil passages ...
I'm running pennzoil platinum 5w-20 per the manual. I have a 2010. I'll be switching to5w-30 next oil change for the summer.
Socalflexin as you are aware these cars demand a good top teir full synthetic oil and 93 octane gas,the full synthetic oil that you just added will slowly dissolve out the sludge and NOT CLOG up your oil filter,in order to acheive this personaly would try changing it out again after 800 miles or so in order to clean up any leftover buildup and see if it benefits any,BTW using a good fuel system cleaner like chevron techron will help some,hope this helps any and keep us updated. Z
Can you see the teeth on the tensioner or is it internal? I've almost always had this issue always used pennzoil platinum or Mobil 1 with Motorcraft filter. I've heard it needs to skip x amount of teeth before they replace.
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Tensioner is behind a cover, so not readily visible from outside.
Heres a pic of the timing chain,surely a pita to perform,and agree with SHOdded,the tensioner is pretty much isolated. Z
https://vimeo.com/128813229 (https://vimeo.com/128813229)
What my car sounds like on a cold start. Timing chain?
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Possible, in early stages, as it doesn't sound continuous yet. If you have access to a mechanic's stethoscope, you can narrow down the source (yes, there can be reflected sound, but still worth it).
I read somewhere that there is an updated timing chain and tensioner,found a pretty good site that shows the updated parts. Z http://parts.lakelandford.com/showAssembly.aspx?makeName=ford&modelYear=0&modelName=flex35l-v6-automatic&ukey_assembly=6484232&ukey_product=53566104&assembly=t187040 (http://parts.lakelandford.com/showAssembly.aspx?makeName=ford&modelYear=0&modelName=flex35l-v6-automatic&ukey_assembly=6484232&ukey_product=53566104&assembly=t187040) http://parts.lakelandford.com/images/parts/motor/fullsize/T187040.png (http://parts.lakelandford.com/images/parts/motor/fullsize/T187040.png)
Quote from: jtoddk98 on May 25, 2015, 03:43:43 PM
https://vimeo.com/128813229 (https://vimeo.com/128813229)
What my car sounds like on a cold start. Timing chain?
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that's what min sounds like on cold start up, but not everytime. Maybe the longer it sits makes it more likely to happen. I'm going to say its the timing chain tensioner because my previous G35 did the same thing.
Yea, it only does it when it sits for a while, this is when I started it today after being out of town since Friday, so about a 3 day sit.
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https://www.youtube.com/watch?v=FT_77mKfbMM (https://www.youtube.com/watch?v=FT_77mKfbMM)
I had my oil changed with Amsoil Signature series, the noise went away, haven't heard it since the change
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Be good if it stays that way :)
Quote from: SHOdded on May 30, 2015, 08:42:12 PM
Be good if it stays that way :)
Please keep us updated, my noise also goes away for about a week after i change the oil.