occ
Posts: 267
Joined: Thu Jun 24, 2010 1:14 pm
Delivery Date: 26 Jun 2015
Location: Tustin, CA

Re: I Got the car on Wednesday. Failed me on Friday. Un update

Tue Mar 29, 2011 8:13 am

leafwing wrote:I picked up the car yesterday’s afternoon.
The salesman told me the factory overcharged the A/C. The car went to a fail-safe mode as a result. The technician said there is nothing wrong with the car and assures me that nothing will happen to it again. No one mentions the engineer from Nissan.


Can someone hypothesize how an overcharged A/C would put the car in fail-safe mode? I've never heard of that, but perhaps for an EV, it is necessary to prevent any system from short-circuiting the electrical system?!?
2011 Nissan LEAF:
Res: 4/21/10 7am
RAQ: 11/23/10 (& ordered)
Delivered: 6/17 vin 4873
Toyota Rav4EV (2/27/13)
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ERG4ALL
Posts: 603
Joined: Thu Sep 23, 2010 11:17 am
Delivery Date: 10 Mar 2011
Leaf Number: 000404
Location: Phoenix/Show Low AZ

Re: I Got the car on Wednesday. Failed me on Friday.

Tue Mar 29, 2011 9:04 am

We've got about 800 miles on our LEAF with no problems whatsoever. The wife says it's the best car we've ever had. She loves the fact that she doesn't have to rummage in her purse to unlock the car and start it.

Regarding sounds, ours at slow speed has a kind of whistle to it that I assume is the pedestrian warning. At a complete stop or normal driving speeds, it goes away.

Regarding range, I first was getting 3.5 miles per kWh and now by paying attention to what the LEAF is telling me, I'm up to 5+ and have gotten 74 miles on an 80% charge with 18 miles remaining indicated. At 19 miles remaining (two bars) the voice said that the battery was getting low just as I was approaching home. Thanks to other owners posts I will not tempt fate and run any lower than that. Another very interesting point about range is its immediate sensitivity. I have a short driveway, about 35 feet long, but it is up hill from street level. When coming home at the foot of the driveway the range indicate some number of miles left. When I pull into the garage going up that hill for just 35 feet the range will drop by as much as nine miles. Of course the LEAF in the space of 35 feet thinks that you will be going up hill for miles to come. When I back out on to the street the mileage goes back up. I suspect that Nissan is trying to be overly cautious when the LEAF detects a definite change in road conditions.
Reserved 4/20/10, Ocean Blue Ordered SL 9/30/10, ESVE Installed 11/22/10, Delivered March 8th, 2011.

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Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

Re: I Got the car on Wednesday. Failed me on Friday. Un update

Tue Mar 29, 2011 9:43 am

occ wrote:
leafwing wrote:I picked up the car yesterday’s afternoon.
The salesman told me the factory overcharged the A/C. The car went to a fail-safe mode as a result. The technician said there is nothing wrong with the car and assures me that nothing will happen to it again. No one mentions the engineer from Nissan.


Can someone hypothesize how an overcharged A/C would put the car in fail-safe mode? I've never heard of that, but perhaps for an EV, it is necessary to prevent any system from short-circuiting the electrical system?!?


I am astonished to think that Nissan would shut the entire car down due to an A/C malfunction! All they'd have to do is disable the compressor and give a small warning. If this is true, I'm seriously disappointed!

Most modern cars have a 2-stage switch, or pressure transducer, that reads the high-side refrigerant line. When it gets a little high, it enables the electric condenser fans, and if it gets too high, it shuts off the compressor. (Not the whole frickin' car!!!)

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/ - - - - Like us on Facebook: EVSE Upgrade

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Ingineer
Posts: 2741
Joined: Fri Oct 15, 2010 1:09 pm
Delivery Date: 13 Jul 2011
Leaf Number: 6969
Location: Berkeley, California
Contact: Website

Re: I Got the car on Wednesday. Failed me on Friday. Un update

Tue Mar 29, 2011 9:49 am

leafwing wrote:I picked up the car yesterday’s afternoon.
The salesman told me the factory overcharged the A/C. The car went to a fail-safe mode as a result. The technician said there is nothing wrong with the car and assures me that nothing will happen to it again. No one mentions the engineer from Nissan.
Here are my observations, after driving the car:
1 There is a hissing sound arises when accelerating and decelerating. It is not persistent though. Drivers who are familiar with Prius at low speeds may know what I’m talking about.
2 Growling sound when I made a left turn. I do not know its source. The steering wheel does not have the same original feel.
3 When charging the car at home, humming sound comes from under the hood, like small fan sound. Charging was so quite before sending it to the dealership.
4. The salesman told me how I should not drive more than 60/65 mph on the hwy.
Other than that the car seems responsive and drives just fine.
The question to those who have the car longer than I do: are any of these sounds familiar or am I worrying too much after what has happened to my car?


I'd say #1 is definitely the pedestrian warning sound. It sounds to me like a pink noise hissing that is speed dependent. Try toggling the button on/off when you hear this while driving, and it will confirm if I am right.

#2 is likely the electric power steering. Every once in a while in the Prius I can hear a slight motor-type noise if I hold pressure on the wheel. The Prius uses a brushed DC motor which is located just behind the dash, so it's reasonable to expect some slight noise. If the "growl" was loud and repeatable, I'd get it checked.

#3 is the electric pump to circulate coolant back to the charger, and this is normal. (it is liquid cooled!) It may not start right away depending on ambient temperature, which might explain why you hear it now and didn't hear it at first.

#4: If there is one thing people should know now; it's NEVER believe a car salesman actually knows what he is talking about. There are some exceptions, but the best thing to do is RTFM (read the manual) and disregard stuff the stealer says.

-Phil
Easily Learn Electricity HERE! - - - - Website: http://evseupgrade.com/ - - - - Like us on Facebook: EVSE Upgrade

smkettner
Posts: 7336
Joined: Mon Aug 09, 2010 10:13 pm
Delivery Date: 26 Feb 2014
Location: Orange County, CA

Re: I Got the car on Wednesday. Failed me on Friday.

Tue Mar 29, 2011 9:50 am

Well this sounds like a muffler bearing story to me. But with no tail pipe the dealer invented a new one.
Could be after a reboot all was declared good by the Nissan engineer. Or maybe (longshot IMO) the over charged air is the actual truth.
1 bar lost at 21,451 miles, 16 months.
2 bar lost at 35,339 miles, 25 months.
LEAF traded at 45,400 miles for a RAV4-EV
RAV4 traded in for I-Pace Dec 2018

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planet4ever
Posts: 4674
Joined: Sat Apr 03, 2010 9:53 pm
Delivery Date: 02 May 2011
Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

Re: I Got the car on Wednesday. Failed me on Friday. Un update

Tue Mar 29, 2011 1:37 pm

Ingineer wrote:
leafwing wrote:The salesman told me the factory overcharged the A/C. The car went to a fail-safe mode as a result.

<snip>

4. The salesman told me how I should not drive more than 60/65 mph on the hwy.

#4: If there is one thing people should know now; it's NEVER believe a car salesman actually knows what he is talking about.

I would think that Phil's sage advice would apply to #0 as well. Just as a random possibility, perhaps someone told the salesman that the factory set the AC voltage limit coming out of the inverter too high, and of course the salesman thought A/C, not AC.

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

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davewill
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Location: San Diego, CA, US

Re: I Got the car on Wednesday. Failed me on Friday. Un update

Tue Mar 29, 2011 1:43 pm

leafwing wrote:...
4. The salesman told me how I should not drive more than 60/65 mph on the hwy.
Other than that the car seems responsive and drives just fine.
The question to those who have the car longer than I do: are any of these sounds familiar or am I worrying too much after what has happened to my car?

My guess is that the salesman took advice about maximizing range (keeping it at 65 or under on the freeway) and morphed it into this recommendation.
2014 Rav4 EV, Blizzard Pearl White
2011 LEAF SL w/QC, Blue Ocean, returned at end of lease

azdre
Posts: 171
Joined: Fri Sep 03, 2010 7:28 am
Location: Phoenix, AZ

Re: I Got the car on Wednesday. Failed me on Friday.

Tue Mar 29, 2011 2:32 pm

Sitting here in my DEAD LEAF. Same symptoms. I set the car to precool, now it won't let me go anywhere. Yes, brake checked, acc mode checked. :evil:

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mwalsh
Posts: 9624
Joined: Thu Apr 22, 2010 10:10 am
Delivery Date: 05 Jan 2011
Leaf Number: 0213
Location: Garden Grove, CA

Re: I Got the car on Wednesday. Failed me on Friday.

Tue Mar 29, 2011 2:39 pm

azdre wrote:Sitting here in my DEAD LEAF. Same symptoms. I set the car to precool, now it won't let me go anywhere. Yes, brake checked, acc mode checked. :evil:


Huh. Looks like we may be finding our first systemic defect.
2011 Blue Ocean SL with 80,000 miles
2015 pack on 12/30/15
Tinted windows
Bridgestone Ecopia 422+ tires
L1 EVSE upgrade
FIAMM horns
Superbright LED lighting
2013 sun visors
LED shifter
Heated seats
GT-R map lamp lenses
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Ready2plugin
Posts: 672
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Re: I Got the car on Wednesday. Failed me on Friday.

Tue Mar 29, 2011 2:45 pm

azdre wrote:Sitting here in my DEAD LEAF. Same symptoms. I set the car to precool, now it won't let me go anywhere. Yes, brake checked, acc mode checked. :evil:


Was the car plugged in? If it wasn't it looks like we do have the same problem here. As for A/C vs. AC I think Ray might be onto something...

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