If you shop at Amazon.com (for anything), use this link to support FordTaurus.net!

3.5 liter & 3.7 liter Duratec waterpump failure

Post Reply
Ron63
New Member
Posts: 4
Joined: Sun Jul 02, 2017 12:15 pm
Vehicle: 2010 Ford Taurus SE

3.5 liter & 3.7 liter Duratec waterpump failure

Post by Ron63 » Sun Jul 02, 2017 4:22 pm

Not sure how many of you watch or subscribe to MacT Ford Edge on Youtube. MacT has driven 3 different Ford Edges over 500,000 combined mikes without ONE waterpump failure. He has conducted a rather extensive study into this vexing problem which has included cutting open and examining failed water pumps from both gen.1 and gen.II 3.5 liter Duratec's. His conclusion is that the pumps fail because the rubber gasket on the water side of the pump develops a leak causing water to get into the bearings of the shaft which quickly degrade and cause the oftentimes catastrophic failure resulting in coolant mixing with oil. His theory is that the rubber gasket degrades because acids in the coolant (as it gets older) attack the rubber and eat away at the seal. He is a stickler for maintenance and changes his coolant on a yearly basis due to the fact that he drives 60,000+ miles per year. He has now stated he is going to do a drain and refill (not a complete flush) of his coolant every 3 months or 15,000 miles. I think he is onto something here. His 2008 Edge went 285,000 nearly problem free miles. He also owns two 2011 Edge's.. one with 200,000 miles and another with +or- 100,000 miles. Never a waterpump failure. Changing coolant more frequently would be a nice and cheap alternative to a $2,000 repair or $8,000 engine replacement.


User avatar
Webmaster
Site Administrator
Posts: 2018
Joined: Tue Jan 06, 2004 11:16 pm
Vehicle: 2002 Ford F-150 XLT SuperCrew
Contact:

Re: 3.5 liter & 3.7 liter Duratec waterpump failure

Post by Webmaster » Sun Jul 02, 2017 5:18 pm

Thanks for the info, I haven't watched or heard of that guy, I'll check him out. Yeah unfortunately this is one of those issues where it won't crop up right away and if you don't catch it early enough (which is extremely difficult) it will be catastrophic.
2000 Ford Taurus SEL (excellent car, sold to a friend)
1992 Mercury Sable GS (good car except for the tranny, sold)
Other Fords owned: 02 F150 SuperCrew 4x4, 11 F150 EcoBoost, 07 Ranger, 01 F150 XLT, 98 F150 XLT, 96 Thunderbird LX, 95 Escort GT, 86 Mustang LX, 82 Mustang

GhostRider
Regular Member
Posts: 692
Joined: Wed Oct 10, 2012 7:34 am
Location: Ohio
Vehicle: 2013 Ford Taurus Limited

Re: 3.5 liter & 3.7 liter Duratec waterpump failure

Post by GhostRider » Mon Jul 03, 2017 7:58 am

Im at about 110K on my bull. No problems. I maintain my vehicles per the Ford recommended schedule.
2013 Ford Taurus Limited FWD (301A Package)

Ron63
New Member
Posts: 4
Joined: Sun Jul 02, 2017 12:15 pm
Vehicle: 2010 Ford Taurus SE

Re: 3.5 liter & 3.7 liter Duratec waterpump failure

Post by Ron63 » Mon Jul 03, 2017 8:29 am

Remember, Ford recommends transmission fluid changes at 150,000 mile intervals and claims that the PTU fluid is lifetime in AWD vehicles. I think most of us know by now that this isn't realistic. Their goal is to sell cars and my goal is to do everything in my power to NOT have to buy another car (for a long while, anyway). By the time your waterpump blows and your transmission (or PTU) fails, the car is long out of warranty and no longer Ford's responsibility. Everyone has to make their own decision in regards to maintenance based on how long they want their car to last and the state of their finances. Wishing you the best of luck!

Post Reply