Rattle on cold start, wastegate rattle?

[AHenry014]

I have a '22 XLT 2.7 with just about 15k miles on it. I don't believe its phasers/timing due to my familiarity with the issue (I had a '13 3.5 that had the rattle and I personally did the chain/phasers). On cold start, there is a rattle that sounds a lot like a heat shield. I figured I would check it out when I got under it for my at-home oil change. I didnt see anything out of sorts. After doing a little reading, it seems some people have a rattle at cold start much like I do, and its the wastegates rattling around. I havent had an opportunity to get under the hood to verify, but it doesnt appear to be a super common issue with the 14th gens. I see talks to adding an E-clip to eliminate the rattle, but I certainly dont want to cause any other issues doing so. Its only a concern at cold start and I currently just treat it as a characteristic of the truck rather than a flaw. Has anybody experienced/remedied this?

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[volvofan94]

Does the rattle sound metallic then last for a few seconds during a cold start?

My truck has the 3.5L, been hearing this for about a month now on nearly every cold start. To me, it seems to be coming from the brake master cylinder area when I listened with the hood open. Got a video of the noise and will ask the dealer to look into it tomorrow when the truck is there.

 

[AHenry014]

I'm fairly certain its not timing/phaser related. Its a far less prevalent issue in the 2.7's. Its an inconsistent rattle that comes and goes as its at elevated cold start rpm. It goes away once the rpm's come down to normal warmed up idle speed. It hasn't changed at all in the 9k miles I've owned the truck. Its hard to explain over text, but the best thing I can compare to is a heatshield rattle.

Your rattle on the other hand, happening only for a few seconds after cold start, sounds like timing chain/phaser issues. Once the oil pressure comes up, it goes away, correct?

 

[slow3v]

I’ve had this since the truck was basically new. I pressed and pressed and the dealer replaced the pass. Side turbo. It got a little quieter, briefly.

From my extensive research this affects a lot of cars across all manufacturers, and isn’t really an issue. The wastegate valve or door heats up and expands and that’s what takes the slack out (the rattle we hear).

Some car communities have people putting light springs on the wastegate itself to keep them tight when “closed” but I don’t want to add any stress to the actuator assembly, so I live with it.

A little annoying but it is what it is.

 

[volvofan94]

Your rattle on the other hand, happening only for a few seconds after cold start, sounds like timing chain/phaser issues. Once the oil pressure comes up, it goes away, correct?

Oil pressure is in the normal range when the rattle noise on my truck happens. It'll happen 2 to 3 seconds after starting the truck for the day. Subsequent restarts are fine, no noise. Asked the dealer about it and they said: "couldn't reproduce the issue."

To me, the rattle I hear sounds more like an electronic device turning on than a mechanical issue like timing chain or cam phasers. Yesterday the truck got a new APIM (unrelated issue), but I will see if the problem is still present when I start it cold later today.

Here's a video of the rattle I'm experiencing on a cold start. Is it similar to the one you're hearing?

Cold start and the noise appears at the 14 second spot in the video.

 

[WhiteLightningnshitshadow]

I wouldn't be so quick to dismiss phaser issues with the 2.7. While it seems the older 2.7s were rock solid in the phaser dept, the newer 2.7s seem to have some problems in both the bronco and f150s. Idk what the details of the revision are, but someone here mentioned there's a superceded part number for the 2.7 phasers in our trucks. Mine hasnt given any issues, but I'm only at 2k miles and one oil change.

If you try anything with the wastefate, let me know! Can you snag a video of the sound?

 

[Ford Motor Company]

Oil pressure is in the normal range when the rattle noise on my truck happens. It'll happen 2 to 3 seconds after starting the truck for the day. Subsequent restarts are fine, no noise. Asked the dealer about it and they said: "couldn't reproduce the issue."

To me, the rattle I hear sounds more like an electronic device turning on than a mechanical issue like timing chain or cam phasers. Yesterday the truck got a new APIM (unrelated issue), but I will see if the problem is still present when I start it cold later today.

Here's a video of the rattle I'm experiencing on a cold start. Is it similar to the one you're hearing?

Cold start and the noise appears at the 14 second spot in the video.

Hi there. These noise concerns doesn’t sound like something we want you to experience with your F-150. Could you please send us a PM with your VIN and the name and location of your Ford dealer? To send a private message, just click on our username and select "Start Conversation". I'd be happy to look into how I can assist you on my end.

 

[LariatSpaceWhite2.7]

Some info at the link in the bottom on 2.7s and phasers. Mine on my 2021 were just replaced at 17,000 mile. Either I just got “lucky” or, long story short, the original owner went ridiculously long on the first oil change…like selling dealer out of state said oil had been changed and has internal record of it but I couldn’t find any record of it in the Ford system at my local dealer a buddy works at…so, my truck may have gone 16,000 miles on the original oil! Not good, not good at all…not sure what that means for the longevity of the truck, but we’ll see. when the tech had my motor open for the phasers he noted that there were small bits of gold in the oil on the inside of the timing cover that concerned him and he couldn’t decide if the motor was eating itself or if they were from the break-in, but he was puzzled since I’d told him the original dealer said the oil had been changed so he thought he could rule out if being from the break-in…so that’s when I remembered dropping what I thought was 2000 mile oil only to find it looked like 20,000 mile oil! Sure wish I had moved quick enough to save some to be analyzed. So, now after the phasers, gonna run the MC semi syn for 2,000 miles and see what BlackStone has to say…was the “gold stuff” in the oil from the break-in because it did have the original oil still or is the motor eating itself? Motor runs good, doesn’t smoke, smooth, good power, no more noisy than any other 2.7, good MPGs, the oil pressure on the dash gauge looks fine…suppose we’ll see. ?‍?‍
But rant aside, I’m wondering if the toasted, dirty and thin oil contributed to the demise of my oil-controller phasers or if in fact because my truck falls within the years of some of the issues that’s why it happened…suppose I’ll never know.
https://www.f150gen14.com/forum/threads/terrible-noise-at-startup-22-2-7-w-1500-miles.11304/

 

[AHenry014]

Thanks for the info and the link. Mine does NOT sound like that. If it did, it would already be at the dealer. I really should get a video of it on here, but i need to find a minute to get under the hood for a cold start and see where its coming from.

 

[Snook1987813]

Hi there. These noise concerns doesn’t sound like something we want you to experience with your F-150. Could you please send us a PM with your VIN and the name and location of your Ford dealer? To send a private message, just click on our username and select "Start Conversation". I'd be happy to look into how I can assist you on my end.

My truck makes the same noise, never heard for 20k miles took it to the dealer for a shutter in the transmission between 9th an 10th gear, they reprogrammed it or so they say cause it still shutters but now I have that same noise that is in this video so I took it to the dealer they had it for a month said they had 3 Ford reps look at it and they couldn't figure it out, few days later they call me and said it's a normal sound cause the the service managers truck makes that same sound but can not show me. I would love to hear what the out come of this is.

 

[Ford Motor Company]

My truck makes the same noise, never heard for 20k miles took it to the dealer for a shutter in the transmission between 9th an 10th gear, they reprogrammed it or so they say cause it still shutters but now I have that same noise that is in this video so I took it to the dealer they had it for a month said they had 3 Ford reps look at it and they couldn't figure it out, few days later they call me and said it's a normal sound cause the the service managers truck makes that same sound but can not show me. I would love to hear what the out come of this is.

Hi, Tim. This rattle noise concern doesn’t sound like something we want you to experience with your F-150. Could you please send us a PM with your VIN and the name and location of your Ford dealer? To send a private message, just click on our username and select "Start Conversation". I'd be happy to look into how I can assist you on my end.

 

[National Superbike]

I have a 23 2.7 that I just bought from a dealer with 2400 miles. It was sold as a "new" vehicle since it was in their loaner fleet. It also has a rattle on cold start for a few seconds. I figured it must be a normal characteristic since the sales guy said it had to pass a 182 point inspection and be signed off by the service manager before being sold at retail. I always wonder if they really do these inspections they claim...

 

[MidwestF150]

I think I found where the noise is coming from… take a look at this video I recorded of my 2021 EB 3.5

 

[Jerome10]

I've got the Powerboost and I get that metallic rattle on cold starts as I rev through 1500-2000rpm as well.

Wastegate always sounded more like wop-wop kinda thing on YT videos, not metallic. Wondering if actuator?

I just wish I knew if it was normal. Truck sounds awful as I pull away from the house every morning.

 

[Smittymedic17]

2024 2.7L xlt since new w/ cold start rattle or when crawling through drive thru, it was very noticeable. Ford tech eventually isolated it to the waste gate in the turbo. Driver side turbo was replaced (warranty) and significantly reduced the noise.

Delaler also said, if it happens again the waste gate rattle is“normal” as per ford! Nothing else they can do.

I’ve ordered springs.

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