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I have the 2GR-FE engine in my 2016 Sienna which I think is very similar to the engine in your vehicle. I just switched it from TGMO 0W-20 synthetic to Mobil 1 Extended Performance 0W-20 and I can tell you the engine is running much quieter, feel smoother and better fuel economy on the highway...

I have a 2010 Flex with EB and the 6F55 transmission. I'm swapping in a used transmission and a reman torque converter because the torque converter clutch failed at 150k on the odometer. The transmission has a sealed case and a non-serviceable filter. I would suggest two steps you can take now...

I'm doing a bunch of work on my 2010 Ford Flex Ecoboost. One of the new parts I'm installing is a brand new PTU. The new unit comes from the factory pre-filled with Motorcraft 75w-140 synthetic gear oil. This oil is known to break down and turn to a thick gloppy grease due to overheating when...

I have a 2010 Flex with the same setup. I would not recommend doing this at a Quick Lube place because the technicians are not ASE Certified mechanics. Second, they will want to use Valvoline gear oil which is not my preference. I have used the Ford 75-140 full synthetic 75-140, the Amsoil...

Here is a great video showing the original pump design and discussion of a car that had very high miles on the original pump. At about 8 minutes in, you can see the coolant that flows out, it's the Motorcraft Gold . . . https://www.youtube.com/watch?v=R3-NOGZL8ms

dogememe - Not trying to start a debate about dex-cool here, it's been debated enough. My impression is that Dex-Cool has had a range of famous issues, hence my statement. In a properly designed application, I'm sure it's fine.

buck91, that is an option, but I'm concerned that the Orange coolant may also have issues since Dex-Cool is universally despised (for good reason) and I'm also not convinced that Ford has it right this time either . . .

I have been using the Specialty Green fluid for the last 40k miles or so, but I think the water pump bearing may be going out again as I'm hearing the tell tale noises at startup with coincide with a failing pump and "stretched timing chain", hence my request for input on alternatives. I'm...

Folks - I could use some help for coolant suggestions. I have 2010 Flex with the 3.5L Ford Ecoboost engine. This is the second engine in the car (remanufactured engine by Ford) as the original engine was destroyed due to catastrophic failure of the water pump dumping coolant into the oil pan...

I would not consider the Chrysler. Do your homework, theat company is not making reliable vehicles and the Pacifica is completely new for 2017. I just picked up a 2016 Sienna myself, reliability is the #1 factor. Also note that the 2017 Sienna has an all new drivetrain . . .

I've just had my EB engine fail with 100k miles on it and the dealer is installing a reman engine this week. I have a long thread here on the forum talking about it. In summary I had the "rattle on startup" which I now believe was caused by chain/guide wear starting at around 70k miles...

Originally Posted By: BikeWhisperer It's the F-150 Forums (especially the F-150 Eco-Boost Forum) that seems to have the highest density of the tin foil hat wearing crowd. If you believe those forums you MUST put dual catch cans and drill holes in your CAC or your eco-boost engine will die a...

Originally Posted By: BikeWhisperer I am currently running Castrol Edge 5w-30 but will be switching to Edge 0w-40 (ie German Castrol) from this point on. I also use a 300ml can of Lubrimoly MOS2 in my Eco-Bost. There is some fuel dilution that is common with TGDI engines. Yet another reason to...

UPDATE: Dealer confirms that the engine is knocking. I'm assuming at least one damaged crank bearing causing the issue. Ford zero hours reman engine is going in this week. I could use some input on any special additives required for the initial startup of the reman engine. I'm assuming Ford...

I realize that in most cases the goal of using the bypass filter is to achieve long OCIs and save costs related to maintenance. In this case, my goal is about reducing wear at the timing chain and guides thereby preserving engine life. The additional cost of the bypass system and filters is...

I'm looking for help in setting up a bypass system for a Ford Flex with the 3.5L twin turbo Ecoboost engine. I have a reman engine going in this week and could use input on which system, filters, etc. Are my best option. There is another thread in the forums discussing what happened to...

Originally Posted By: jorton It's a good idea to look at the oil filter. Use one that prevents oil from draining back into the sump when the vehicle is parked. Did Ford spec 5w-30 for any Ecoboost model in it's first year of production? When the spec is changed from 5w-20 to 5w-30 in a tsb that...

Originally Posted By: Roadkingnc Yes the car engine still has the internal pump, I am a tech at a ford dealership and have been for 27 years. I have put a few pumps in the 3.5, not a lot though so the failure rate is really pretty low. I just worked on an edge with the 3.5l, 212k miles original...

Originally Posted By: SoNic67 People keep saying is the chain that "stretched". But if you measure the old and the new one you will see that they are identical to 1/16". Is the tensioner and guides that fail and of course at that point there is nothing to take up the 2-3" of slack that's there...

Originally Posted By: Roadkingnc F150 water pump is external eliminating the coolant in oil problem. Thank you for the info, I was not aware of that fact. I suppose that Ford decided it was a good idea to address the design flaw in the F-150 engine. On the other hand, it's a shame that they...