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ACD/AYC pump failure reports

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Old May 7, 2014 | 04:27 AM
  #46  
adamsheehy's Avatar
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From: Boston
Originally Posted by cannyboy
Year: 2012
First sold: 05/12
Pump started to fail: 15k miles
Pump failed: 16k miles
Cold started reflashed: ??
Damn, that's pretty early. Where do you live?

Originally Posted by kyoo
is this more prevalent with the X's? I know a good amount of 8-9s that have had failures, not sure how the Xs are holding up
Yes, pumps for the X is located behind rear right wheel as opposed to in the engine bay.
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Old May 7, 2014 | 06:13 AM
  #47  
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Originally Posted by adamsheehy
Damn, that's pretty early. Where do you live?

Yes, pumps for the X is located behind rear right wheel as opposed to in the engine bay.
ohh right. gotcha
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Old May 20, 2014 | 05:13 PM
  #48  
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From: Chicagoland
Evo X GSR

Year: 2008
First sold: ?
Pump started to fail: 55k miles
Pump failed: 65k miles
Cold started reflashed: Yes (on new)
Pump relocated to trunk.
Obviously not covered under warranty.
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Old May 21, 2014 | 07:26 AM
  #49  
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From: Pittsburgh, PA
2010 EVO X GSR AYC ACD Pump Fail 5/21/14

year: 2010
first sold: 5/2013 (bought used)
pump started to fail: 35,000 miles (4/2014)
pump failed: 37,500 (Tarmac light is blinking constantly - not dead yet but needs relpaced)
cold-start reflashed: 5/2014 - dealership tried to reflash but failed to reset the unit.

Welcome to the club right? Dealership quoted me the price of the unit was $1223 and installation total would be $1600.

Diagnostics on the unit costed $39.99.

This was not covered under warranty. Thinking about buying the refurb unit from http://www.acd-pump.com/

Ordered the part from the dealership so will decide what to do 2 weeks from now.
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Old May 22, 2014 | 06:49 AM
  #50  
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From: Chicagoland
The cheapest I could find a new pump for was about $1500 (which was actually the dealer) and the quote for parts and labor was $2100-2200. That's a good price, man. I'd jump on it.
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Old May 26, 2014 | 09:40 AM
  #51  
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add me to the list

Originally Posted by steng2495
year: 2010
first sold: 5/2013 (bought used)
pump started to fail: 35,000 miles (4/2014)
pump failed: 37,500 (Tarmac light is blinking constantly - not dead yet but needs relpaced)
cold-start reflashed: 5/2014 - dealership tried to reflash but failed to reset the unit.

Welcome to the club right? Dealership quoted me the price of the unit was $1223 and installation total would be $1600.

Diagnostics on the unit costed $39.99.

This was not covered under warranty. Thinking about buying the refurb unit from http://www.acd-pump.com/

Ordered the part from the dealership so will decide what to do 2 weeks from now.
First sold: 2/2011 ( bought used in august 2011 with 29000 miles)
Pump started to fail: 31000 miles (Dec 2011 every winter since then was an issue)
Pump failed: 41000 miles 5/21/2014 ( same constant blinking Tarmac light in weather 70F or above same as Steng)
Cold start refresh: yes
Did file complaint online with NHTSA this morning

Last edited by inspektirgadget; May 26, 2014 at 09:45 AM. Reason: add info
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Old Jun 13, 2014 | 06:44 PM
  #52  
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From: USA
What is the acd/ayc pump? Why does it fail?
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Old Jun 13, 2014 | 08:31 PM
  #53  
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From: Lodi, nj
2008 lancer evo x
Purchased used at 45000
Acd pump died at 72000
Cold start reflash not done
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Old Jul 9, 2014 | 08:00 AM
  #54  
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From: Bloomington, MN
Year: 2011 (GSR)
First sold: 8/2011
Location: purchased in OH, now in MN
Pump started to fail: 16,300 miles (5/28/2014, when purchased used) - mode indicator intermittently flashing
Cold-start reflashed: no

Resolution: Pump was replaced at dealership under 3yr/36k warranty, and was advised it was not covered under the drivetrain warranty.

Side note: The service manager showed me the old pump (did not let me take it); it looked, seriously, like the nasty pictures you can find online with massive corrosion all over the thing.

Handy reposted info:
Part number for the AYC/ACD pump: 3520A045
Currently $1177.13 on mitsubishiparts.net (vendor here)

Last edited by BlackRaven; Jul 18, 2014 at 07:18 AM. Reason: resolution added
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Old Jul 11, 2014 | 11:10 AM
  #55  
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From: Madison, WI
year: 2010
first sold: 8/2010
location: IN & WI
pump started to fail: 4WD service light came on at least once every winter since new
pump failed: total failure 2014 @ 17000 miles
cold-start reflashed: no
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Old Jul 26, 2014 | 02:08 PM
  #56  
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From: Colorado
Eek, I just bought an Evo with 59k on it. I suppose I should be prepared to replace this, the car did come from Texas though so maybe Ill get lucky.
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Old Aug 1, 2014 | 01:55 PM
  #57  
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From: Manch-Vegas NH
year: 2011
first sold: 10/2011
pump started to fail: 45,500 miles (7/2014)
pump failed: not yet
cold-start reflashed: never
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Old Aug 1, 2014 | 02:16 PM
  #58  
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2008 GSR
First sold? Bought used in 2012
Pump Failed Winter 2012
Reflash= nope

Looking for replacement pump :/
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Old Aug 4, 2014 | 08:32 AM
  #59  
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From: Pittsburgh, PA
Update 8/2014

Just an update, called mitsubishi, they said it's not covered under warranty... I asked to file a "claim". A man called me back about my case and said mitsubishi would pay the dealer the part and I would just have to cover the labor. Couldn't be happier only ended up paying $400. Please file a complaint at mitsubishi motors. They will let your dealership know not to charge you for the part.
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Old Aug 4, 2014 | 12:02 PM
  #60  
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From: Scotia, NY
year: 2008
first sold: 09/2009
pump started to fail: 45,000 miles (09/2012)
pump rebuilt: 46,000 miles (03/2013)
pump failed: 58,000 miles (09/2013)
pump replaced: 60,000 miles (04/2014)
cold-start reflashed: never

I ordered the rebuild kit from the Canada company and had Tony Mangino Mitsubishi rebuild a pump core they had with the kit and they thoroughly cleaned all the barnacles and such and installed and bled it. By the end of summer, the lights were coming on again. I parked for the winter, then had it diagnosed in spring and sure enough, pump was bad. Paid $$$ to replace it.
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