'20 Ticking on Cold Start Temporarily

[pathfinder_88]

I've noticed our '20 seems to make a ticking noise for a few minutes on cold start. This isn't chain rattle as some have experienced as it's a bit more subtle. Anyone else experience this and, if so, do we know what it is? It goes away after a couple minutes. No issues otherwise. Thanks!

 

[pathfinder_88]

Update on this, after listening to a few videos, I believe it's wastegate rattle. Can be heard at idle when cold or when revving stationary for a brief moment. I'm assuming it's more of annoyance but appears to be a common issue...and sounds like sh*t when cold.

 

[DWs-TTEB]

@pathfinder_88 I had this as well. Dealer replaced the turbo with the wastegate rattle under warranty back in Sept 2020. Now my passengerside turbo is doing this...

 

[DWs-TTEB]

Cold start rattle in the turbo

I have a slight rattle coming from the driver side turbo on cold starts. I’m thinking it is the waste-gate flapper valve in the exhaust pipe flapping like the guy says in the video in the link. Think I should live with it or use the warranty? I’ll post a video of my Expedition doing it and...

www.expeditionforum.com

2019 Ford Expedition 3.5L EB Cold start rattle

2019 Expedition cold start rattle in the turbo (waste-gate flapper valve) . I am trying to figure out if this is normal or if I should have it looked at und...

www.youtube.com

 

[aggiegrad05]

@pathfinder_88 I had this as well. Dealer replaced the turbo with the wastegate rattle under warranty back in Sept 2020. Now my passengerside turbo is doing this...

The fact that you actually got your dealer to replace the turbo under warranty for the wastegate rattle is amazing. You either have the nicest (or most bored) dealer in the world, or you are an excellent negotiator. Good work!

(A couple other folks on here have managed it, but most of us are just told that it's "normal" and have learned to begrudgingly live with it.)

 

[pathfinder_88]

The fact that you actually got your dealer to replace the turbo under warranty for the wastegate rattle is amazing. You either have the nicest (or most bored) dealer in the world, or you are an excellent negotiator. Good work!

(A couple other folks on here have managed it, but most of us are just told that it's "normal" and have learned to begrudgingly live with it.)

I may just email a video to one of my dealers and ask if they'll deal with it rather than waste time going there. It seems it isn't a turbo issue but rather the linkage for the wastegate. You'd think they'd just come up with a cheap fix.

 

[DWs-TTEB]

They don’t service/rebuild the wastegate they have to replace the entire assembly (turbo, wastegate, and linkage). What the Ford tech that did mine said .

 

[DWs-TTEB]

The fact that you actually got your dealer to replace the turbo under warranty for the wastegate rattle is amazing. You either have the nicest (or most bored) dealer in the world, or you are an excellent negotiator. Good work!

(A couple other folks on here have managed it, but most of us are just told that it's "normal" and have learned to begrudgingly live with it.)

I’m a smooth talker I guess and I had that video above and started the conversation with the service writer with it. Also, having USMC war in Afghanistan veterans plates might have helped too. And I was waiting in the parking lot when the Ford tech went to my Expy to Diagnose it. I gave him the run down with all the stuff I learned from the community in this forum with a I’m not swallowing any BS tone.

 

[5280tunage]

They don’t service/rebuild the wastegate they have to replace the entire assembly (turbo, wastegate, and linkage). What the Ford tech that did mine said .

Mine actually tried servicing the wastegate, via a TSB that was for previous F150's. they replaced the wastegate actuator arm and spring assembly. Did nothing, the noise is internal to the turbo, not the actuator/assembly. After that, it took me 9 months of escalating and fighting with Ford, and almost doing a buyback to get the two turbos replaced. They've been great since.

 

[pathfinder_88]

Mine actually tried servicing the wastegate, via a TSB that was for previous F150's. they replaced the wastegate actuator arm and spring assembly. Did nothing, the noise is internal to the turbo, not the actuator/assembly. After that, it took me 9 months of escalating and fighting with Ford, and almost doing a buyback to get the two turbos replaced. They've been great since.

It's interesting to hear that the 2017 TSB didn't work as I'd thought it was the external arm vibrating but I guess not.

 

[mhExped]

My '18 Limited previously had the cam phaser cold start rattle and dealer replaced under warranty. Since that time, some other noise has surfaced. Dealer says it's NOT a repeat of the cam phaser rattle because that was a short 3-5 second rattle (forum members seem to back that statement). Hence, I'm left wondering if its the wastegate rattle, since it lasts quite awhile - in fact, has a distinct metallic sound to it the dealer even acknowledged as a _bit_ different.

Anyway, dealer is now calling it "normal" and won't do anything about it. Even if the sound is "normal" for the vehicle in some general sense, it's certainly "new" to us - i.e., the car hasn't made this particular sound on cold starts in the 3+ years we've owned it.

At this point, I'm just waiting for the noise to get so obviously worse/different and/or have something fail that the dealer can't brush it off any longer.

 

[NukeLife]

There are actually two components to the rattle. One is the pivot point on the actuator arm wearing out, and the other is internal to the turbo—it is the actual waste gate flapper valve. It wears out where it is mounted to the pivot arm. FordTechMakuloco has a great video on YouTube showing how this happens.

FYI, my dealer replaced both my turbos.
The sound was back in less than a year—both sides. It’s just a piece of **** design. You gotta love driving an $82,000 vehicle and sounding like an old junk heap with rusted out exhaust heat shields rattling when you pull up to the traffic light.
Meanwhile the 10 year old Ram truck beside you sounds great—no rattles—Hemi rumbling….

 

[pathfinder_88]

There are actually two components to the rattle. One is the pivot point on the actuator arm wearing out, and the other is internal to the turbo—it is the actual waste gate flapper valve. It wears out where it is mounted to the pivot arm. FordTechMakuloco has a great video on YouTube showing how this happens.

FYI, my dealer replaced both my turbos.
The sound was back in less than a year—both sides. It’s just a piece of **** design. You gotta love driving an $82,000 vehicle and sounding like an old junk heap with rusted out exhaust heat shields rattling when you pull up to the traffic light.
Meanwhile the 10 year old Ram truck beside you sounds great—no rattles—Hemi rumbling….

Definitely annoying. I bought a Ram 1500 Classic with the ecodiesel brand new. It needed a new turbo at 50,000 kms...went into limp mode in the middle of nowhere towing a trailer. I don't think it matters what you buy these days, there will be issues, especially with more complex engines ie diesel or twin turbo.