7.3 Godzilla Engine Noise

[Cgbedford]

Took the 2022 7.3 Tremor with 21k miles on her on a camping trip this weekend. Great 45 minute ride to the campground with no problems or anything abnormal.

Saturday morning I did the remote start to get ready to go check in. Immediately the truck started making tapping noise from the engine bay. Loud noise easily heard from 20 feet away. No warnings anything on the dash. Pulled up to the office on an incline and the noise was still there. Finished up in the office, crunk the truck and the noise continued. Backed down to a level area and the noise decrease. Backed the truck up and hill and the noise went away completely. I was able to repeat this twice.

Drove back to the campsite and parked it so I could begin to drown my sorrows.

Crunk it again Saturday afternoon and completely back to normal. Again this morning before the ride home completely normal. No sign of the noise.

I attached a video. The truck was up to temp when it was made.

Any ideas what this is?

 

[Mac1]

Check your heat shields, it sounds like something else but I had a heat shield get bent into the exhaust and kinda made a similar sound easy check. Other than that shrug.

 

[kylant]

converter bolts?

 

[HvacSciGuy]

That's loud wow. It's hard to say for sure from the video, but it sounds like it's external of the engine. Maybe something to do with torque converter as has been mentioned. I don't think I've seen anyone complain about a noise like that one.

Are you sure you didn't have a bag of popcorn laying on the exhaust?

 

[Daimyo68]

The converter has come apart internally. The honeycomb matrix has broken down and a chunk of it is now rattling inside the exhaust. Bring it to the dealer, that's covered

 

[Blade420Play⚔️]

This is mine...

 

[Sccritterkiller]

Check your heat shields, it sounds like something else but I had a heat shield get bent into the exhaust and kinda made a similar sound easy check. Other than that shrug.

Check trans heat shield for rocks too...I get shit in mine all the time, makes all kinds of racket. Can't wait till the warranty is up...ripping those pot metal POS off is the 1st thing I am doing.

 

[Daimyo68]

This is mine...

That sounds like a possible flexplate issue. I know there we some issues with the torque converter studs contacting the inspection cover back in 2020 (TSB 2-0-2408) . If you handy, you could pull the inspection cover off and look for scrapes, and then start the truck with the cover off and see if the noise is gone, but being you have a 2024, I'd be at the dealer for that.

 

[Blade420Play⚔️]

That sounds like a possible flexplate issue. I know there we some issues with the torque converter studs contacting the inspection cover back in 2020 (TSB 2-0-2408) . If you handy, you could pull the inspection cover off and look for scrapes, and then start the truck with the cover off and see if the noise is gone, but being you have a 2024, I'd be at the dealer for that.

It stopped making the noise the day I was going to take it to them. A previous poster said they get the noise for around 1500 miles after every oil change and I had changed the oil about 1000 miles before the noise started. If it comes back, I am going to take it up to them immediately this time. I will however do the inspection like you said

 

[Daimyo68]

It stopped making the noise the day I was going to take it to them. A previous poster said they get the noise for around 1500 miles after every oil change and I had changed the oil about 1000 miles before the noise started. If it comes back, I am going to take it up to them immediately this time. I will however do the inspection like you said

Post back after you do the inspection, I am curious.

EDIT: Here's the TSB on the issue

As for noise until 1500 miles after an oil change... There should not be any noise after an oil change, period. If there is, someone forgot to put the oil in. The poster who mentioned this should have their vehicle checked if that's happening every time after an oil change. (i'd be curious to know what the root cause of that is as well). If there is engine noise after an oil change, and the engine hasn't seized, then there is an oiling issue with something internal. First thought would be a faulty lifter.

Never in my 40 years of working on cars/trucks/heavy truck/boats/etc etc was there noise for 1500 miles after an oil change, unless the oil was not put in, in which case there would be engine damage after a few miles (i've seen it happen) if the customer even made it that far.

 

[Tikkahunter]

Hello, so my truck made a similar sound a few weeks ago while camping. This was just after the engine was started. After driving it about 20 minutes it was gone. I have not heard it again but it is concerning on a new truck. My truck is 2024 f250 tremor with the 7.3 with 2,100 miles

 

[Blade420Play⚔️]

Hello, so my truck made a similar sound a few weeks ago while camping. This was just after the engine was started. After driving it about 20 minutes it was gone. I have not heard it again but it is concerning on a new truck. My truck is 2024 f250 tremor with the 7.3 with 2,100 miles

That's the same sound as mine was making.

 

[the1adman]

That's the same sound as mine was making.

Yep, same as mine to.

 

[Stealth Tremor SD]

Took the 2022 7.3 Tremor with 21k miles on her on a camping trip this weekend. Great 45 minute ride to the campground with no problems or anything abnormal.

Saturday morning I did the remote start to get ready to go check in. Immediately the truck started making tapping noise from the engine bay. Loud noise easily heard from 20 feet away. No warnings anything on the dash. Pulled up to the office on an incline and the noise was still there. Finished up in the office, crunk the truck and the noise continued. Backed down to a level area and the noise decrease. Backed the truck up and hill and the noise went away completely. I was able to repeat this twice.

Drove back to the campsite and parked it so I could begin to drown my sorrows.

Crunk it again Saturday afternoon and completely back to normal. Again this morning before the ride home completely normal. No sign of the noise.

I attached a video. The truck was up to temp when it was made.

Any ideas what this is?

Mine was Making the same noise, it was the heat shield just hanging there. I just pulled it off.

 

[Modman]

Moving thread to the 7.3 forum...

 

[Sccritterkiller]

Mine was Making the same noise, it was the heat shield just hanging there. I just pulled it off.
View attachment 165727
View attachment 165728

That's the tranny heat shield correct...They rattle, collect debris and are a real PIA.

 

[Sterry]

Mine was replaced when I had my crank seal done. They told me rodents caused it.
Doubtful. It’s tin foil. Any brush you drive through destroys it.
Seemingly odd design.

 

[Daimyo68]

That shields starts wearing through because some overpaid engineer (or ford being cheap), decided there was no need for a washer to cover more surface area where the bolt goes through the shield

 

[MSparks909]

My truck is now making the same noise after a hard 500 mile tow yesterday. 8,000 miles on the truck. Pulled from Eastern NC to Windrock Park near Knoxville, TN. Lots and lots of rolling hills and 3K+ RPM hill climbs. Towing my Jeep on a PJ Deckover, total load is 10-11K I’m guessing. Is this a heat shield issue or did I cook my catalytic converters? I’ve got a ~500 mile tow back home tomorrow. The residual oil reside on the oil filter is from the change at 5,000 miles. It’s not leaking oil.

 

[Cgbedford]

My truck is now making the same noise after a hard 500 mile tow yesterday. 8,000 miles on the truck. Pulled from Eastern NC to Windrock Park near Knoxville, TN. Lots and lots of rolling hills and 3K+ RPM hill climbs. Towing my Jeep on a PJ Deckover, total load is 10-11K I’m guessing. Is this a heat shield issue or did I cook my catalytic converters? I’ve got a ~500 mile tow back home tomorrow. The residual oil reside on the oil filter is from the change at 5,000 miles. It’s not leaking oil.

View attachment 171079

View attachment 171080

View attachment 171081

That is definitely the noise I heard.

I took mine in for an oil change about a week after my original post. I shared the video and also email the video to the service manager at the dealer ship. Unfortunately I got the old "Not much we can do if we can see it when it's doing it. Just bring it back next time you hear it."

So far it has not returned. I have towed several times since and have not had an issue. Not that it will matter but I made sure it was noted on the last inspection report.

I ha e pulled and pushed on the heat shields and they all feel secure. It sounds internal.