The Bronco Engine of Choice

From what I've seen, and read, from forum posts and from reputable sources, the 2.7 has just as many potential problems as the 2.3. Every vehicle on the planet has the potential for lemons, issues and whatnot..

Not sure I'd trust a video from a random YT channel with 5K subscribers.. Look at theIr other videos, all hyperbole.

2.3 -vs- 2.7 ---- 2dr vs 4dr = Meh.... Get the engine you want and get the # of doors you want..

raqball

Meh, from what I've seen, and read, from forum posts and from reputable sources, the 2.7 has just as many potential problems as the 2.3. Every vehicle on the planet has the potential for lemons, issues and whatnot..

Not sure I'd trust a video from a random YT channel with 5K subscribers.. Look at theIr other videos, all hyperbole.

2.3 -vs- 2.7 ---- 2dr vs 4dr = Meh.... Get the engine you want and get the # of doors you want..

Ok-

That’s the common consensus among enthusiasts and mechanics—that Ford’s "fix" for the 2.3L was more of a patch than a total redesign.

The argument that it’s a band-aid usually boils down to two things:

1. The "Saw Cut" Design: While Ford moved from the open-deck "slotted" block to a "solid" block to stop coolant from leaking into cylinders 2 and 3, they still use a "saw cut" (a tiny groove) between the cylinders for cooling. Critics argue this still leaves a structural weak point where the head gasket can eventually fail under high boost or heat.
2. Heat Management: The 2.3L is a relatively small displacement engine pushed very hard. In heavy vehicles like the Explorer or Bronco, it runs high boost pressures, which puts immense stress on those middle cylinders (2 and 3).

Why the 2.7L is seen as the "Real" Fix
If you feel the 2.3L is a compromised design, the 2.7L EcoBoost is the mechanical opposite. It wasn’t adapted from a car engine; it was built from the ground up as a miniature diesel-style truck engine:

• Compacted Graphite Iron (CGI) Block: It doesn't use the aluminum block that the 2.3L does. CGI is much stiffer and doesn't "flex" or crack under heat like aluminum.
• Two-Piece Block: It has a "deep skirt" design that makes the bottom end incredibly rigid.

The Reality Check:
If you’re planning to keep the vehicle past 100,000 miles or plan on tuning it for more power, the 2.7L is widely considered the superior engine because its "bones" are physically stronger. The 2.3L is fine for a 3-year lease, but the "band-aid" fix is exactly why long-term owners are nervous.

extra toasty

The Reality Check:
If you’re planning to keep the vehicle past 100,000 miles or plan on tuning it for more power, the 2.7L is widely considered the superior engine because its "bones" are physically stronger. The 2.3L is fine for a 3-year lease, but the "band-aid" fix is exactly why long-term owners are nervous.

I'm not even remotely nervous.. These engine and door wars get old..

I've had exactly one recall on my 2023 Badlands 2.3L. It was for the rear shocks but I never got it done because I have aftermarket shocks.

Thats the only recall for my Bronco. There have been no other recalls, engine related or otherwise.

The problem with that video, is that if people take it as factual / seriously (I don't), is that it leaves them needing to sort though the noise and fear mongering to make a decision.

People should just get what they want as any vehicle, engine size, etc. can / will have issues, lemons and recalls..

raqball

I'm not even remotely nervous.. These engine and door wars get old..

I've had exactly one recall on my 2023 Badlands 2.3L. It was for the rear shocks but I never got it done because I have aftermarket shocks.

Thats the only recall for my Bronco. There have been no other recalls, engine related or otherwise.

The problem with that video, is that if people take it as factual / seriously (I don't), is that it leaves them needing to sort though the noise and fear mongering to make a decision.

People should just get what they want as any vehicle, engine size, etc. can / will have issues, lemons and recalls..

You’re totally right. Every engine and vehicle
can have component issues. But an inherent design or application can change the formula. 2dr vs 4dr is opinion. This is physics.

Weight is the natural enemy of a small-displacement, turbocharged engine. When you put a
2.3L four-cylinder in a vehicle that weighs between 4,400 and 5,300 lbs(depending on the trim and gear), you change the engine's "duty cycle" significantly.

Here is why your concern about the weight-to-displacement ratio is valid:

• Constant Boost: In a lighter car like the Mustang, the 2.3L can cruise out of boost. In a heavy Bronco, especially with 35-inch tires (Sasquatch package), the engine stays "on the pipe" much more often just to maintain highway speeds. This creates higher sustained cylinder head temperatures and puts more stress on the turbo seals.
• Low-End Torque Struggle: While the 2.3L has impressive peak torque (310–325 lb-ft), it achieves it higher in the RPM range than a larger engine. Moving 5,000+ lbs from a dead stop requires a lot of "grunt," which often results in the 10-speed transmission hunting for gears or holding high RPMs, negatively impacting fuel economy and long-term wear.
• The 2.7L Alternative: This is why many Bronco buyers opt for the 2.7L EcoBoost V6. It offers 400+ lb-ft of torque and uses a compacted graphite iron (CGI) block—the same material used in PowerStroke diesels—which is much better suited for the high-stress demands of a heavy off-roader.

If you plan on towing, adding heavy armor/winches, or running large tires, the 2.3L will be working at its absolute limit most of the time.

extra toasty

You’re totally right. Every engine and vehicle
can have component issues. But an inherent design or application can change the formula. 2dr vs 4dr is opinion. This is physics.

Weight is the natural enemy of a small-displacement, turbocharged engine. When you put a
2.3L four-cylinder in a vehicle that weighs between 4,400 and 5,300 lbs(depending on the trim and gear), you change the engine's "duty cycle" significantly.

Here is why your concern about the weight-to-displacement ratio is valid:

• Constant Boost: In a lighter car like the Mustang, the 2.3L can cruise out of boost. In a heavy Bronco, especially with 35-inch tires (Sasquatch package), the engine stays "on the pipe" much more often just to maintain highway speeds. This creates higher sustained cylinder head temperatures and puts more stress on the turbo seals.
• Low-End Torque Struggle: While the 2.3L has impressive peak torque (310–325 lb-ft), it achieves it higher in the RPM range than a larger engine. Moving 5,000+ lbs from a dead stop requires a lot of "grunt," which often results in the 10-speed transmission hunting for gears or holding high RPMs, negatively impacting fuel economy and long-term wear.
• The 2.7L Alternative: This is why many Bronco buyers opt for the 2.7L EcoBoost V6. It offers 400+ lb-ft of torque and uses a compacted graphite iron (CGI) block—the same material used in PowerStroke diesels—which is much better suited for the high-stress demands of a heavy off-roader.

If you plan on towing, adding heavy armor/winches, or running large tires, the 2.3L will be working at its absolute limit most of the time.

The original video claimed the 2.3L was one of the worst engines ever built (LOL) which is how this thread started. Are we now transitioning to towing and boost?

Sure the 2.7 is the better option if you plan on towing a lot or towing something that needs more oomph.. I tow my camper just fine with my 2.3 but my camper is like 1500 lbs. I've had no issues with the trans 'searching for gears' and no issues with it 'holding high RPMs'

If you plan on towing, adding heavy armor/winches, or running large tires, the 2.3L will be working at its absolute limit most of the time.

This is just blatantly false and intentionally misleading... I am now outta this thread..

Do your own research people, get what you want / need and be happy!