MKS 3.7L and 3.5L EcoBoost engines have a known problem with water pumps destroying the engine...?

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pologuy

Junior Member
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I just came across several Internet postings (many from mechanics) saying that Ford's 3.7L and 3.5L EcoBoost engines have a known problem with water pumps going bad and destroying the engine...

Anyone here heard about this or have this happen?
 

mkx_wanders

Member
86
13
8
Kalifornia
Don't forget the Duratec 33, 30 and 25...

I personally don't know of any Ford/Lincoln owners that have had their water pump leak coolant into the the oil pan. Lubricating with engine coolant will ruin an engine, after a little while.
 

C Krohn

Senior Member
455
63
28
Fort Worth, TX
After reading the original post, I did some research. There was a redesign of the water pump for the 2013 models. It is supposed to make them more reliable. I hope so. My MKS is a late 2013 with a 3.7 N/A engine.
 

mkx_wanders

Member
86
13
8
Kalifornia
I am really enjoying my 3.7 N/A. I love the mileage and also the N/A growl when I lay into it.
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Simonsays

New member
26
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3
3.5 water pumps are a pain. Just replaced my wifes in her 08 mkz. While we were in there we did the timing chain, timing guides, some solenoids known to fail. That said, hers is up there in miles with 130k, so all in, it could have been worse i suppose.

Now why did i buy a another 3.5?!... Oh yes, 88k and ecoboost :) A 3 year engine warranty doesnt hurt either... Gets me to roughly 118k worry free. Im actually hoping the pump goes soon, better the deductible than the emergency fund!
 

G-215974

Two years ago, January of '17, I traded in a 2011 SHO with just less than 150,000 on it, for a like new 2015 MKS 3.7 AWD with 19,000 miles on it. Two weeks later I was at the dealer for a follow up visit and was told that the engine had blown in the Taurus. Service department believed the water pump had failed and taken out the engine. Dealer did not elaborate on the cause of failure for either the water pump or the engine.

Hopefully the water pump is more reliable and less likely to take out the engine. I have a CPO warranty until I hit 100,000. Have about 25,000 miles left on that. Loving the MKS though, awesome car!
 

theStever

New member
6
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Does Lincoln recommend changing the water pump/timing belt at a certain mileage? I hear it is about $2K to do as the engine comes out.
 

oldiromgut

New member
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1
The more miles you have on it...the future of your waters pump looks worse some go bad with less miles like 50,000. My views from scrubbing the internet and forums.....If your affected car has the stupid design the brain dead engineers at FORD came up with there are a few things you can do to help before complete failure......... 1.Switch from the Lincoln advised BLEND of motor oil to Full synthetic 2. Change and flush coolant at a a Ford dealer every 30,000 miles not the 100,000 as dictated in my Continental manual....I went a step further and went with a K and N oil filter over the Ford filter. There are You Tube videos of most filters cut open at the bottom, the different filters opened to show the differences in pleats and construction quality.. I also bought extra warranty before I even knew about the destructive chances those water pumps have. I would not wait for any help from Ford.
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NickDallas

New member
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0
1
I just came across several Internet postings (many from mechanics) saying that Ford's 3.7L and 3.5L EcoBoost engines have a known problem with water pumps going bad and destroying the engine...

Anyone here heard about this or have this happen?
I just replaced my motor because of the water pump going out on my 2012mks 120,000 miles. Hope it doesn’t happen again.
 
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