2.7 engine failure tracking thread - Ford Please!

Dragline

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1) Every car company has failed engines. 2) No company issues communication on those failures unless they have a recall.

The general public has no idea there is any issue with Bronco engines, nor do the VAST majority of Bronco owners…Ford would be absolutely insane to bring attention to it because a couple of dudes on a forum who heard about an issue think they should…not happening. It’s isolated, Ford will take care of those problems that have popped up…and no, they would never address something that affects so few. No company would.
Gotta disagree with you here. Had a fleet of 5 new Cat 793F 240-ton mining trucks, 2500 hp engines. One threw a rod at low hours. Within a couple of weeks Cat let us know they had identified the cause of failure was a burr left in the crankshaft oil galleries by a dull tool. In x hours the burr would break off and go through the rod bearing. They pretty quickly knew the exact range of crankshafts affected and the engine serial numbers they were in. They campaigned those engines early to avoid catastrophic failure.
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ToddGinGA

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User: mmcq
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21???
Engine Sequence Number: ???
Mileage of failed motor: 1146
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21???
New Engine Sequence Number:

User: Broncoshrimp
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21160
Engine Sequence Number: 120068
Mileage of failed motor: 2400
Cause of failure: Valve
Replacement Part Number: MB3E-6006-AA <- Earlier revision engine???
New Engine Julian Date: 21125
New Engine Sequence Number: 120221

User: 69 Mach I
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21161
Engine Sequence Number: 120300
Mileage of failed motor: 2744
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21XXX
New Engine Sequence Number:

User: estone
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21209
Engine Sequence Number: 131010
Mileage of failed motor: < 1000
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21XXX
New Engine Sequence Number:

User: Nikole
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21166
Engine Sequence Number: 120417
Mileage of failed motor: 2900
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date:
New Engine Sequence Number:
User: mmcq
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21???
Engine Sequence Number: ???
Mileage of failed motor: 1146
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21???
New Engine Sequence Number:

User: Broncoshrimp
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21160
Engine Sequence Number: 120068
Mileage of failed motor: 2400
Cause of failure: Valve
Replacement Part Number: MB3E-6006-AA <- Earlier revision engine???
New Engine Julian Date: 21125
New Engine Sequence Number: 120221

User: 69 Mach I
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21161
Engine Sequence Number: 120300
Mileage of failed motor: 2744
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21XXX
New Engine Sequence Number:

User: estone
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21209
Engine Sequence Number: 131010
Mileage of failed motor: < 1000
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21XXX
New Engine Sequence Number:

User: Nikole
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21166
Engine Sequence Number: 120417
Mileage of failed motor: 2900
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date:
New Engine Sequence Number:


Here are the details on my Failed 2.7 from Dec. 5th. Here is an update on the replacement:
- Dec. 15th replacement engine received by dealership
- Dec. 20th required Gaskets and bolts on backorder so replacement installation on hold
- Jan.10th still waiting on 4 bolts on backorder to proceed with the engine replacement


User: TODDGINGA
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21224
Engine Sequence Number: 120196
Mileage of failed motor: 1358
Cause of failure: diagnosed as internal damage (potentially Valve)
Replacement Part Number: Unknown
New Engine Julian Date: Unknown
New Engine Sequence Number: Unknown
 
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SS Hawk

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User: mmcq
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21???
Engine Sequence Number: ???
Mileage of failed motor: 1146
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21???
New Engine Sequence Number:

User: Broncoshrimp
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21160
Engine Sequence Number: 120068
Mileage of failed motor: 2400
Cause of failure: Valve
Replacement Part Number: MB3E-6006-AA <- Earlier revision engine???
New Engine Julian Date: 21125
New Engine Sequence Number: 120221

User: 69 Mach I
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21161
Engine Sequence Number: 120300
Mileage of failed motor: 2744
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21XXX
New Engine Sequence Number:

User: estone
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21209
Engine Sequence Number: 131010
Mileage of failed motor: < 1000
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date: 21XXX
New Engine Sequence Number:

User: Nikole
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21166
Engine Sequence Number: 120417
Mileage of failed motor: 2900
Cause of failure: Valve
Replacement Part Number: Unknown
New Engine Julian Date:
New Engine Sequence Number:
Here's mine. Failed this last Saturay. Sick to my stomach and very frustrated!

User: SS HAWK
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21165
Engine Sequence Number: 120059
Mileage of failed motor: 1238
Cause of failure: diagnosed as internal damage (potentially Valve)
Replacement Part Number: Unknown
New Engine Julian Date: Unknown
New Engine Sequence Number: Unknown
 

Snowdogyyz

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Here's mine. Failed this last Saturay. Sick to my stomach and very frustrated!

User: SS HAWK
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21165
Engine Sequence Number: 120059
Mileage of failed motor: 1238
Cause of failure: diagnosed as internal damage (potentially Valve)
Replacement Part Number: Unknown
New Engine Julian Date: Unknown
New Engine Sequence Number: Unknown
Is it included in this thread?
https://www.bronco6g.com/forum/threads/2-7l-blown-engines-22-noted-so-far-jan-8-update.31951/
 

navi

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It will be very helpful to track the repair times on these.
If mine grenades and it takes longer than 30 days for the replacement, it's Lemon Law time.
🍋
 

69 Mach I

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It will be very helpful to track the repair times on these.
If mine grenades and it takes longer than 30 days for the replacement, it's Lemon Law time.
🍋
6 1/2 weeks for mine.
 

Cornbred

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I feel for you guys, I purchased a 2004 Ford Ranger new back in the day. Fully loaded, 4x4 with 4.0. First week I had it put suspension lift, wheels tires, winch etc. at 8000 miles took a sh!t. It’s kinda funny. I was in Kentucky driving through and got off the interstate to get some breakfast, had the radio up and at the light I turned it down. Heard this knocking sound and looked over to see some piece of junk old truck beside me and thought “damn what a turd.” Well, his light turned green and he drove off, the knocking didn’t. So I start checking gauges out and they all read fine, pulled off and stopped. Got out and engine was knocking like a mf’er. Entire ordeal sucked, I live in Georgia so I had to leave truck in Kentucky. Took about a little over a month to replace engine. After getting the truck back constantly had issues with it. I ended up having to sue ford, I won. I’ve had 5 F150’s/F250’s since with zero issues.
 

Mark T

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Here are the details on my Failed 2.7 from Dec. 5th. Here is an update on the replacement:
- Dec. 15th replacement engine received by dealership
- Dec. 20th required Gaskets and bolts on backorder so replacement insulation on hold
- Jan.10th still waiting on 4 bolts on backorder to proceed with the engine replacement


User: TODDGINGA
Failed Part Number: MB3E-6007-AA
Engine Julian Date: 21224
Engine Sequence Number: 120196
Mileage of failed motor: 1358
Cause of failure: diagnosed as internal damage (potentially Valve)
Replacement Part Number: Unknown
New Engine Julian Date: Unknown
New Engine Sequence Number: Unknown
Can you help with interpretation of the date? Is that 21 (2021), 2/24 (Feb 24)?
 

ToddGinGA

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Can you help with interpretation of the date? Is that 21 (2021), 2/24 (Feb 24)?
engine Julian date code: 21224 = year 2021, 224th day in the year = Aug. 12th, 2021
 

Hossfire

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Catching back up here. The other post had 15 vehicles with engine build dates ranging from 6/8/2021 to 8/12/2021. Because of the Dirt Mountain delays, engine build seems to be more relevant than vehicle build.

Were any blown engines reported where the engine build dates were outside these ranges?

Also: during those three months (Jun, Jul, Aug) 19,804 were produced. What we have seen on these forums is about a 0.13% failure rate over the entire population. Some recent build data on January 2022 builds indicates that about 10% of the builds were Bronco6G members.

Of course, someone who has a blown engine is probably more likely to start looking at our forums. We are the rant kings! :)

So, the failure rate would be around 1.3% during the affected months, assuming that the population of failures is around 250. Not a shockingly high number, but statistically significant considering that the 2.7 is a mature product with a good track record in the F150 for several years. I think its first year debut was shaky, but they fixed the issues subsequently.

If you have an engine build during this time period, I wouldn't worry:
---the failure rates are still low during the affected time period (1 in 800 vehicles)
---you have plenty of warranty time left if it fails

If you are thinking that Ford should recall, I wouldn't hold your breath. Pulling every 2.7L Bronco/F150 in for a valve replacement for a 1-2% failure is a lot more expensive than replacing a few blown engines.

That all said, if I had a one of those build dates, I would weight that into extended warranty or trade in considerations a few years from now.
 

estone28

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Can you double check his Julian number?

In his thread he had said 7/28 which is 21209 (that date is stuck in my head as that is my same build date for my 2.7 though I haven't had issues as of yet with the motor).
I believed mine to be built the week of 7/28. Exact day, I do not know - and unfortunately didn't take a pic of the label before replacement and this thread. Sorry. I will try to get the info for my replacement to contribute.
 

j_marinelli

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I believed mine to be built the week of 7/28. Exact day, I do not know - and unfortunately didn't take a pic of the label before replacement and this thread. Sorry. I will try to get the info for my replacement to contribute.
Just responded to your engine fail thread LOL
 

estone28

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Just responded to your engine fail thread LOL
If its any help to anyone, here is the write-up from the service writer on my engine failure when I got the repaired bronco back. I will also add to my original thread. Should be attached as an image / I only chopped off my personal info at the top.
@flip @j_marinelli

Bronco Service Write Up.jpg
 
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