2.7 engine failure tracking thread - Ford Please!

[Snowdogyyz]

Some on the forum if an issue is mentioned with the Bronco. See MIC top issues for example. I’m excited for my bronco, but I’m not going to pretend it doesn’t have issues.

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[Jazer]

I stopped counting at around 10. I have seen probably another 10 since then. Just on Facebook groups & Bronco6g posts. It's enough that it's a trend.

 

[bkfit]

this says your engine was built on 308th day of '21 . . (i.e. Julian Date)

personally have not seen any blow-ups w that high a date, but many we don't know yet

Awesome So Nov 4th. if my math is correct.

 

[mpeugeot]

That’s me. I don’t have any details other than what the dealer sent me on Friday. The sent me photos of the spark plug and the scope pictures. Bronco has 2000 miles and a build date late October. We took delivery on the 5th. Was at the dealer on the 3rd.

Didn't see any signs of detonation...

Nothing to see here.

I would swear that looks like detonation, most likely due to a fuel system failure under boost is my guess... Not that I have ever seen that happen on the dyno.

That's definitely a picture that Ford doesn't want getting out.

With no other information my best guess, one of the two fuel pumps failed or one of the injectors stopped firings (or had severely compromised flow). Detonation can destroy motors in mere seconds.

FWIW, I am just north of 3000 miles today, 1st month of ownership.

 

[navi]

Didn't see any signs of detonation...

Nothing to see here.

I would swear that looks like detonation, most likely due to a fuel system failure under boost is my guess... Not that I have ever seen that happen on the dyno.

That's definitely a picture that Ford doesn't want getting out.

With no other information my best guess, one of the two fuel pumps failed or one of the injectors stopped firings (or had severely compromised flow). Detonation can destroy motors in mere seconds.

FWIW, I am just north of 3000 miles today, 1st month of ownership.

 

[navi]

Let's see, if most of the roughly 20,000 Bronco 2.7's need replacing,
that would be a 7 figure loss for Ford.
Ford management right now.

 

[mpeugeot]

Let's see, if most of the roughly 20,000 Bronco 2.7's need replacing,
that would be a 7 figure loss for Ford.
Ford management right now.

If it's a hardware issue, and limited, maybe not a big deal. If it is an engine calibration issue, it's a big deal until it's figured out. The last possibility is that it is a fleet wide hardware problem, and that would truly suck ass. I really don't want to see that be the case... That would be a huge hit, even for Ford.

 

[da_jokker]

If there is a dozen here, shouldn't there be at least a hundred 2.7 F150's?

Fortunately the f-150s don't share the same engine. The nano engine IS used in 2018+ but the Bronco has a different oil pan (at least).

 

[da_jokker]

Yeah, I would definitely, under no circumstances, do a tune on a 2.7 right now. You drop a valve with a tampered with computer and there goes your warranty.

 

[Raptor911]

Ford is most likely assessing the date range of bad parts (assuming the bad part is the culprit) and thus which production run of 2.7s are in this date range. Once they determine this, they will decide what to do >> either recall these Broncos or do nothing and provide a 100K/10 year power-train warranty to these broncos.

 

[OX1]

Ford is most likely assessing the date range of bad parts (assuming the bad part is the culprit) and thus which production run of 2.7s are in this date range. Once they determine this, they will decide what to do >> either recall these Broncos or do nothing and provide a 100K/10 year power-train warranty to these broncos.

Or ONLY fix the one's that blew up, like they did on the early Fusion Sports (almost the same issue, with cyl heads not machined correctly). Hopefully with higher desirability and overall visibility, they take a better path. Would suck if they only fix the one's that blow up, you get an early one, it doesn't blow up, but you wanted to tune it.

 

[Raptor911]

I agree with you assuming there are only 100 vehicles. But they will not do anything if there are 10k vehicles.

Or ONLY fix the one's that blew up, like they did on the early Fusion Sports (almost the same issue, with cyl heads not machined correctly). Hopefully with higher desirability and overall visibility, they take a better path. Would suck if they only fix the one's that blow up, you get an early one, it doesn't blow up, but you wanted to tune it.

 

[Troutfisher9216]

@mpeugeot with regards to your detonation discussion I wonder if running regular gas vs premium might be playing a small part in misfires leading to detonation?

 

[Bronco21fan]

Why don’t everyone start bombing ford with questions the fact they won’t make a standby or let us know what’s going on pisses me off

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