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Old 03-05-2011, 09:28 AM
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Dan Dan is offline
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Real Name: Dan
Location: Houston, Texas
Hybrids: '07 Prius II
Posts: 202
Default Help... my FEH / MMH has fallen and it can't get up.

My MMH just went loopy. Engine cuts out when its under heavy load with a "STOP SAFELY NOW" message. When the engine cuts out the engine fan stays on.... I get an MIL on the "STOP SAFELY NOW" message, but I didn't have my SG with me to pull code. Whatever code was there has been cleared.

As soon as I turn the car off, I can turn it back on... Everything is fine if I'm easy on it, but if I put heavy load on it (2500 rpm-ish) it cuts out again.

Thoughts?

-Dan <11011011>

.

Dan is an official (Honda) Hydrogen Economy Convert!
Houston Hybrid and Hypermilers Club <106mpg.com>

Best commute = 14.3mi @ 114 MPG (sg2)
Best (non-trivial) tank = 769mi @ 85.7 MPG (fcd)
MPG Centurion-Hybridfest 2007-Prius II-26mi @ 106 MPG (sg2)
Dan <11011011> @ CleanMPG.com
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Old 03-07-2011, 06:44 AM
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Dan Dan is offline
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Real Name: Dan
Location: Houston, Texas
Hybrids: '07 Prius II
Posts: 202
Default Re: Help... my FEH / MMH has fallen and it can't get up.

Found a good thread on this at Edmunds.

http://townhall-talk.edmunds.com/dir...ew/.f0ff5b5/59

Sounds like the water pump (factory pump often blows under 50k). If it is the water pump, repair could run between 650-900 dollars, depending on the mood of your dealer.

-Dan <11011011>
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Old 03-10-2011, 08:18 PM
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Real Name: Phil
Hybrids: 2008 Kiwi Green Mariner
Posts: 8
Default Re: Help... my FEH / MMH has fallen and it can't get up.

Just had the MECS pump replaced at 70500 after having that trouble this past week. Dealer said there was a TSB about it and the new pump is much smaller size and different from the original. Don't know the cost as mine was done under Mercury ESP.
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Old 12-03-2012, 01:29 PM
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Default Re: Help... my FEH / MMH has fallen and it can't get up.

It is definitely the MEC (electric motor coolant system) pump. Mine did the same thing on a thousand mile road trip to San Diego several times before dying on the way home in the middle of the Central Valley of California. It cost $600 to replace at the dealer. If you are at home with toolkit and jack stands, you can buy the pump itself for around $300 and do a relatively simple change out in about an hour.

Ford has an advisory notice about this problem, and there is a class-action lawsuit pending.
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Old 12-03-2012, 01:29 PM
 
 
 
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2008, electronic, escape, feh, ford, hybrid, hypermiling, instructions, mariner, mec, mecs, mmh, pump, replacing, ssh, water

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