Long Term Reliability

[agentl074]

I was doing some looking and found some pretty cool things about the Ecoboost engines. There have been several going 200,000 and even 300,000+ miles (odometer) on the factory Ecoboost (no catch can or anything) -- just regular maintenance, quality oil.... Also, these engines are TOUGH... going through pretty grueling torture tests with NOMINAL carbon deposits (no significant coking on one of the tests and this being without a catch can), no leaks or signs of significant stress.

 

Another test 'simulated' 10 years and 165,000 miles of engine wear that also involved a dyno and tear-down with inspection. The results were that the 3.5 Ecoboost tested was still within manufacturer's specs, with 364hp and 420 torque (just one hp less that factory)!

 

I think the takeaway here is maintenance.

 

I am really excited about my new Edge, and now I'm confident that so long as I follow the owner's manual for service (or even a little sooner than the manual says), I should have a very reliable and fun vehicle.

 

 

Sources:

 

http://www.carbuzz.com/news/2017/1/2/How-Does-A-Ford-EcoBoost-Engine-Hold-Up-After-200-000-Miles-7737127/

http://yyjk.yangtaozhan.xyz/FMASAInlWtc/Ford_s_Beat_to_Hell_and_Back_3_5L_EcoBoost_The_Tear_Down_/player.html

Edited January 3, 2018 by agentl074

[goatee]

What about the 2.0 or 2.7L engine that is in the Edge and MKX?

Edited December 27, 2017 by goatee

[Tightanium]

Even though the N/A 3.5 and the 3.5 ecoboost may share some parts I don't think they are identical motors. I have the ecoboost in my F150, so far it's been great. My 3.5 in the Edge runs so smooth and quiet I can't tell it's running sometimes. Early maintenance or more often is good insurance.

[NeuroBeaker]

When I was searching for an Edge, a core criteria of mine was the 3.5 naturally aspirated V6 rather than an EcoBoost engine. I felt the naturally aspirated engine had nicer characteristics to drive (quieter at low RPM, smoother throughout, peak torque at a more familiar place at higher RPM), and I was also concerned about long-term reliability in a forced induction engine. The EcoBoost engines are great for fuel economy, but I'd rather trade that for a more enjoyable drive and less risk of the unknown on the reliability front.

 

All the best,

Andrew.

[1004ron]

When I was searching for an Edge, a core criteria of mine was the 3.5 naturally aspirated V6 rather than an EcoBoost engine. I felt the naturally aspirated engine had nicer characteristics to drive (quieter at low RPM, smoother throughout, peak torque at a more familiar place at higher RPM), and I was also concerned about long-term reliability in a forced induction engine. The EcoBoost engines are great for fuel economy, but I'd rather trade that for a more enjoyable drive and less risk of the unknown on the reliability front.

 

All the best,

Andrew.

Sounds like you're describing my 2017 Sport 2.7L

 

BTW, the 2.7L fuel consumption is much the same as the 3.5L

 

The thing that put me off the 3.5 was the internal water pump and the many reports of the water pump failing and contaminating the engine oil.

Edited March 10, 2018 by 1004ron

[enigma-2]

I have the 3.5 and am well satisfied with it. Local Ford garage told me to change from orange to green coolant as it was the cause of water pump failures and heater core clogs. Can't say it is the cause, but one member, MacFordEdge, reported that he has put on over 200k miles without failure. As only a small percent fail, I would guess that old coolant has a lot to do with it.

[akirby]

I have a 2.0EB in our old Escape (now daughter’s) and the Fusion I just traded on a 3.5LEB F150. Our MKX has the 3.7L only because we took one out of stock rather than ordering and that’s all that was available with the other options we wanted.

 

In my experience the EBs are just as smooth as the 3.7L and certainly not louder (from inside). And they are more enjoyable to drive with more torque available sooner. I don’t like having to wind up the 3.7L just to get it moving. Long term reliability is somewhat of an unknown but so far I haven’t heard of any major widespread issues and there are plenty of 3.5EBs with over 100K miles now.

[Tightanium]

One thing I like on my 3.5 EB F150 is how easy it takes off and never has to down shift under a load. My Edge 3.5 is constantly searching gears under the smallest load. The 3.5 Edge motor is a great motor. Lots of people have had great luck with them. Just keep up on fluid maintenance and your good to go.