jmaudio

Ugh.

I have a 2008 G37S coupe and unfortunately as of this morning my battery is dead. The battery is just over 2 years old. This is the second battery already in less than 6 years of owning the car...

But the real issue at hand is that I can NEVER and i mean NEVER jump start this damn car with another car. Every time I have had hot-shot it, I have had to have Infiniti Roadside assistance send out a tow truck and they use the jumper box. Last time they were out the guy told me that this car required the same amount of power to jump start as an 18wheeler...sounds like BS to me but I have no other explanation.

Can any other 2008 G37 coupe owners jump start their cars with another vehicle?

Unfortunately I'm now out of the 4 years of free roadside assistance coverage so I'm not looking forward to paying to get a jump later so I can go back to National Tire and Battery and give them hell. what a crappy day.....


edit: if it means anything i'm in MD and it was 0 degrees this morning...but still. i don't understand why i have never been able to jump start this car with another vehicle.

macintos

Why does it sound like your battery dies more often than anyone I have ever heard of?

jmaudio

...that's what i'm trying to figure out. my car is 100% stock.

i've never come across a car that can't be jump started via another car....i just don't get it. and yes i am doing it correctly. i've tried larger cars/suvs, various jumper cables, etc.

yenhsravkeviv

I've jump started my car ('09G37S 7AT) with another car before (my old '99 maxima) - just make sure all the accesories are off in both cars

rmfnla

There's a TSB about a faulty vent control valve that runs the battery down; you might want to do a search for that...

[EDIT: TSB: #ITB01-010A]

08skyline

You could try having your starter checked out it could be pulling to much power causing your batteries to die to early.

MYG376MT

I would call your dealership and ask if the TSB was done. This is a known issue. I've tried using jumper cables and it did not work as well. I called roadside and they jumped the car using a portable jumpstarter. The tow truck driver was correct about the car needing a good amount of power to jump.

Black Betty

iTrader: (60)

Are you certain you're doing it correctly? What gauge cables are you using? Are you able to get a good connection? Are your battery cables tight and completely free of corrosion?

You mentioned that it's 0 where you are. I read today that battery loses half its cranking power at 0 degrees.

Also, the TSB that rnfmla mentioned is possibly your culprit. I had it performed while still under warranty and have never had it fail to start since. It was 30 here tis morning and it turned over a little slowly at first then started right up. And before having the TSB I never had any issue jumping the car.

PongSanity

iTrader: (5)

i jumped my '09 g37s with a battery booster & a '06 acura TL before i had a battery change....

blackfunk

iTrader: (1)

Hook it up and let it sit for 5-10mins BEFORE you try to crank it. The dead battery needs to have some charge applied to it. Also put the assisting car in nuetral and rev it while srting your own. Living in the NYC you learn a few tricks with dead batteries.

SPDCRZ

Also be sure you give it a really good run after jumping it. Dont do small trips or else it will never have a chance to truly charge back up.

I would suggest buying a battery charger, and doing a slow, deep charge with it for like 12hrs. That should help if the battery itself is still in good shape

2008G-Man

Does anyone know if they will perform this TSB outside the warranty period? And if not what this would cost to have done?

Black Betty

iTrader: (60)

Not for free. I don't know the cost.

cruzmisl

The part is like 100 bucks online, but it's a real bitch to get to on the coupes. I'd guess they would probably charge ~300-400 bucks for the dealer to do it.

2008G-Man

Besides potentially needing a new battery as well, is it just the one part to replace to correct the problem? Does anyone know the part #?

I'm thinking of ordering it myself and let my local shop handle it who I just more than the dealer and they are much cheaper.