av8or
Posts: 23
Joined: Tue Feb 23, 2016 11:01 am
Delivery Date: 23 May 2015

Water Pump 1 failure on 2012

Mon Jun 26, 2017 10:05 am

Hello,
My 2012 LEAF with 52000 miles on it was parked for 10 days. Upon starting it back up today, the yellow warning lit. The car runs/drives normal, but the one of the water pumps is a little louder than usual. I checked the DTCs on it, and it reports:

P31E9 00C0 EV/HEV Water Pump 1 EVC-314

Has anyone replaced a water pump on the LEAF before? Or is this a job I should just leave to the dealer? I have replaced water pumps, alternators and other parts on regular cars. I need to download the LEAF service manual to get the proper procedures.

Thank you!
'12 SL with 53K miles.
FL Heat = 8 bars at 41K miles
Battery replaced at 48K miles

av8or
Posts: 23
Joined: Tue Feb 23, 2016 11:01 am
Delivery Date: 23 May 2015

Re: Water Pump 1 failure on 2012

Mon Jun 26, 2017 1:35 pm

I just popped the hood and checked to see which pump is making noise.

When car first starts up, water pump comes on at normal speed after a few seconds. There are no warning lights on dash at this point. Then about 15 to 20 seconds later, the yellow warning light comes on, and the water pump RPMs increase.

The pump making the noise is on driver side under the battery - I believe that one is OK.

The other pump, a small one on passenger side, is making no motor noise. It does make a gurgling sound, and some bubbles are appearing in the reservoir above it. I pulled the power plug for the pump and noise didn't change at all, so it is not running at that point.

Both reservoirs are full, and I am not seeing any leak issue.
'12 SL with 53K miles.
FL Heat = 8 bars at 41K miles
Battery replaced at 48K miles

BrockWI
Posts: 795
Joined: Fri Mar 28, 2014 6:28 am
Delivery Date: 28 Mar 2014
Leaf Number: 423875
Location: Green Bay, WI.
Contact: Website

Re: Water Pump 1 failure on 2012

Tue Jun 27, 2017 8:49 am

3 kw solar pv - XW6048 - eight L16's
4 ton GSHP - 1 ton ASHP
2003 VW TDI 200k miles - 52 mpg lifetime
EVSE level 2 - Clipper Creek HSC-40
2013 S model with QC package Mar of 2013
lost first bar @ 72k
@90k miles - 54.71Ahr - 83.64SOH - 78.44Hx - 237GID

av8or
Posts: 23
Joined: Tue Feb 23, 2016 11:01 am
Delivery Date: 23 May 2015

Re: Water Pump 1 failure on 2012

Tue Jun 27, 2017 1:02 pm

Thanks! I checked out that post and saw he took it to dealer for replacement. I found that pump 1 is on passenger side, and pump 2 is on driver side. Pump 1 is very easily accessible, so I ordered the part yesterday and hope to be installing it this weekend. It looks like a very feasible job to be done in the garage, it isn't buried at all.

Before ordering, I checked to be sure the harness is getting +12V, so pump is getting power. Pump must just be worn out.
'12 SL with 53K miles.
FL Heat = 8 bars at 41K miles
Battery replaced at 48K miles

av8or
Posts: 23
Joined: Tue Feb 23, 2016 11:01 am
Delivery Date: 23 May 2015

Re: Water Pump 1 failure on 2012

Fri Jun 30, 2017 4:48 pm

Today I received the waterpump I ordered on E-Bay and installed it. It was a fairly painless install - pump 1 is on passenger fender and is easy to access. I removed as much fluid as I could from the overflow container right above the pump, unscrewed the overflow tank to allow it to move and give me more room, then unscrewed the pump bracket. I was able to pick the pump assembly up so it was the highest point in the system. This allowed for the 2 hoses to be disconnected with very little fluid lost. The hardest part was getting the hose clamps loose enough to swap the hoses to the new pump. Holding them open with vise grip pliers solved it, and made the job pretty quick. It is a similar process to changing out a washing machine pump.

Plugged it all up and tested, can hear the new one humming along and working now, so that is good news. No more error codes!
'12 SL with 53K miles.
FL Heat = 8 bars at 41K miles
Battery replaced at 48K miles

MalcolmReynolds
Posts: 69
Joined: Sat Jun 10, 2017 10:39 am
Delivery Date: 04 Jul 2017

Re: Water Pump 1 failure on 2012

Fri Jun 30, 2017 4:58 pm

This is bad news that we are hearing about failures similar to an ICE car. But it is good news you were able to figure out what the problem was and that the fix may be easy enough that normal people with some tools can do the job. Thanks for sharing your experience.
=======================================
"Serenity" 2013 SL 12 bars 39k+ miles and counting
Zencar 32a EVSE

5ninefish
Posts: 1
Joined: Mon Feb 25, 2013 2:38 am
Delivery Date: 19 Feb 2013
Leaf Number: 025277

Re: Water Pump 1 failure on 2012

Fri Feb 23, 2018 9:47 pm

av8or wrote:Today I received the waterpump I ordered on E-Bay and installed it. It was a fairly painless install - pump 1 is on passenger fender and is easy to access. I removed as much fluid as I could from the overflow container right above the pump, unscrewed the overflow tank to allow it to move and give me more room, then unscrewed the pump bracket. I was able to pick the pump assembly up so it was the highest point in the system. This allowed for the 2 hoses to be disconnected with very little fluid lost. The hardest part was getting the hose clamps loose enough to swap the hoses to the new pump. Holding them open with vise grip pliers solved it, and made the job pretty quick. It is a similar process to changing out a washing machine pump.

Plugged it all up and tested, can hear the new one humming along and working now, so that is good news. No more error codes!
What was the part number for that pump you bought? I'm needing to replace the same pump on the passenger side, and I've been researching to figure out what is the number for that. I believe it's 215813NA0A?

av8or
Posts: 23
Joined: Tue Feb 23, 2016 11:01 am
Delivery Date: 23 May 2015

Re: Water Pump 1 failure on 2012

Thu Mar 08, 2018 12:43 pm

21581-3NA0A is the part I ordered from E-Bay. Price is crazy for it. I noticed that some VW Jettas have 12v waterpumps too, but they cost about $40. The markup on these simple pumps is insane.
'12 SL with 53K miles.
FL Heat = 8 bars at 41K miles
Battery replaced at 48K miles

User avatar
LTLFTcomposite
Posts: 4699
Joined: Fri Apr 23, 2010 6:06 pm
Delivery Date: 10 Dec 2011
Leaf Number: 5926
Location: Central FL

Re: Water Pump 1 failure on 2012

Thu Mar 08, 2018 12:50 pm

av8or wrote:21581-3NA0A is the part I ordered from E-Bay. Price is crazy for it. I noticed that some VW Jettas have 12v waterpumps too, but they cost about $40. The markup on these simple pumps is insane.
$480 ?
LTL
White 2012 SV delivered 10 Dec 2011 returned 25 Nov 2014 replaced with stopgap ICE Sentra
[35 months] [35K miles] [9 Bars]
2013 Volt replaced after 36 months/30k miles with ICE Rogue
2016 SV-adjacent May 2016 lost 4th bar March 2018

User avatar
Nubo
Posts: 5401
Joined: Fri May 28, 2010 11:01 am
Delivery Date: 31 Oct 2014
Location: Vallejo, CA

Re: Water Pump 1 failure on 2012

Thu Mar 08, 2018 8:36 pm

MalcolmReynolds wrote:This is bad news that we are hearing about failures similar to an ICE car. But it is good news you were able to figure out what the problem was and that the fix may be easy enough that normal people with some tools can do the job. Thanks for sharing your experience.
Can't expect a pump to last forever, but it does make me wonder about when to change the coolant if I buy my 2015 lease. Manual states 125,000 miles or 15 years. Opinions?
I noticed you're still working with polymers.

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