My 2004 Infiniti QX56 Shuts Off While Driving! Any Help?

A forum for the Nissan Armada, Infiniti QX56, and beginning in 2014, the Infiniti QX80
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Ronpatz
Posts: 2
Joined: Wed Jan 21, 2009 2:05 pm

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Not sure if this is the right forum for this, but I'm hoping somebody may have a solution. I have a 2004 Infiniti QX56 with around 100k miles on it. Up until these past couple weeks, I haven't had any problems with the cara as it has only required standard maintenance. That has changed lately.

I was driving on the highway between 50-60 when the engine, without warning, suddenly shut off. When this happened, the check engine soon, brake light, etc.. sensors began flashing in the dash. I glided into the breakdown lane and shut the car off. I was able to restart it immediately as if nothing had happened. I drove right to the dealership. They felt it may be a sensor problem, so they replaced the sensors. The car drove fine for a week, but today the same problem happened three times on the way home. I don't think the dealer knows what is wrong, so I am hoping someone out there has encountered a similar problem and has a solution? Please help out a fellow Infiniti owner on this one! Thanks

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Timmbo
Posts: 3212
Joined: Tue Nov 20, 2007 9:14 am
Car: 2013 Infiniti JX35 AWD & 2013 Nissan Maxima Sport Pkg
Location: Green Bay, WI

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Welcome to NICOclub, glad to have you here in the Armada / QX56 Forum!

I really don't have any ideas, but battery, alternator???? Keep us posted please.
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jetroy240
Posts: 165
Joined: Sun Jan 06, 2008 3:36 pm
Car: S13, AE86

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Probably IPDM failing intermittently? The best bet is to swap a known good one & test drive for a long period of time.
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Black stallion
Posts: 142
Joined: Mon Sep 18, 2006 7:27 am
Car: 1994 Q45/2006 QX56

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My 06 shut down a couple weeks ago (no warning) dealer replaced the fuel sending unit sensors. Ran out of gas, but was reading alittle over half a tank. Seems like they see a couple of those a week. Can you say ethanol?
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foleyit
Posts: 1
Joined: Mon Mar 30, 2009 5:21 am

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I experienced same issues as you described last week. It ended up being a bad IPDM (Intelligent Power Distribution Module) and a couple other related items. I am scheduled to pick my QX56 later up today. I hope this is helpful.

I was experiencing where the vehicle would just die. The motor would crank, but not start. It would take a few extra tries and eventually it would start. I was able to make it to the dealer without having to be towed.
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iNfinitiNBeYond
Posts: 51
Joined: Wed Apr 15, 2009 6:25 pm
Car: 06 Qx56

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I say gHost Ride the whipp........ Just Jokin... sounds like a common problem.. Should I be concerned...? I tend to go over 50 or 60...hehe.. just can't help it with the smooth V8 ride....

Also it also maybe the chip recognition within the key if you have one... Something with the security, for example, if the key is worn and may come loose in the ignition area and if the vehicle is not recognizing that you have a key in the ignition it may cause it to automatically shut down... or otherwise just make sure you always have a full tank of premium... I always fill it when its have full..... if they dont know whats wrong... Ghost Ride that BiAtch.......
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jc56
Posts: 4
Joined: Tue Jul 28, 2009 1:26 pm
Car: infiniti QX56 04

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hi im new to this website but i also have a 04 qx56 and it just started to randomly shutoff i was wondering if had any advice thanks
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dx3
Posts: 88
Joined: Sat May 23, 2009 1:13 pm
Car: 2006 Infiniti QX56
Contact:
Contact dx3

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Are you getting a Check Engine light?

Jonny
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jc56
Posts: 4
Joined: Tue Jul 28, 2009 1:26 pm
Car: infiniti QX56 04

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i don't get any warning light it just randomly shutsoff and then it turns on right away sometimes other times it takes a couple of tries and then it turns back on
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dx3
Posts: 88
Joined: Sat May 23, 2009 1:13 pm
Car: 2006 Infiniti QX56
Contact:
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That would lead me to believe it is a fuel issue. If it was anything else you would throw a code... Fuel pump maybe?

Jonny
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jc56
Posts: 4
Joined: Tue Jul 28, 2009 1:26 pm
Car: infiniti QX56 04

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i was thinking of changing the intelligent power distribution module. but you think it could be a fuel issue i was even thinking maybe it could be a fuel sensor
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Jvasquez
Posts: 7
Joined: Tue Oct 06, 2009 2:37 pm
Car: 2005 Infiniti QX56

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jc56 wrote:i was thinking of changing the intelligent power distribution module. but you think it could be a fuel issue i was even thinking maybe it could be a fuel sensor
Did you get the issue resolved...I'm going through the same thing right now...sometimes will putter as though it's not getting enough gas but mostly it will not start at all now.

ANYONE HAVE ANY SUGGESTIONS...Need to do something. Don't want to waste money on every possible solution.
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Jvasquez
Posts: 7
Joined: Tue Oct 06, 2009 2:37 pm
Car: 2005 Infiniti QX56

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Jvasquez wrote:
Did you get the issue resolved...I'm going through the same thing right now...sometimes will putter as though it's not getting enough gas but mostly it will not start at all now.

ANYONE HAVE ANY SUGGESTIONS...Need to do something. Don't want to waste money on every possible solution.
Well my truck is still at the dealership...it was (you guessed it) the IPDM!!!

It's not under warranty...here's the thing. The part is $150, but for them to run diagnostics and for parts and labor I'm looking at $450. Not too bad considering it won't run without the part being replaced.

Here's the thing...I don't have warranty to cover this or a loaner, BUT I took it to the dealer and the service manager said he would give me a loaner car FOR FREE if I let them do the service.

I let them do it, because the PART IS ON NATIONAL BACKORDER!!!!!!!!!!!

I can't get the part if I wanted to do it myself anyway!!!!!!!!!!!!

I figure if they have it a week, the cost of me not having my truck would be worth the extra $250. So no biggie, in the meantime I get to drive a LITTLE EX35 , but it beats not having my second car. Thanks for the info...
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TODOM711
Posts: 4
Joined: Tue May 15, 2018 5:26 pm
Car: 2012 QX56
2007 G35

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Hello Everyone,


I know this is an old thread but if anyone has their rides still have they had any issues since? My dad has an 05 and just started having the same issues and hes trying to figure out what direction to go but defintely sounds like the IPDM.
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Socaldiablo
Posts: 89
Joined: Thu Jul 01, 2010 3:48 pm
Car: 2004 Infiniti QX56 - Black on Willow
2016 GMC Yukon XL Denali - Black on Black
2006 Ducati ST3
2008 Kawasaki KLX450r
Location: Carlsbad, CA

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TODOM711 wrote: ↑
Sat Jan 09, 2021 9:53 am
 Hello Everyone,


I know this is an old thread but if anyone has their rides still have they had any issues since? My dad has an 05 and just started having the same issues and hes trying to figure out what direction to go but defintely sounds like the IPDM.
I've had my 04' for nearly 13 years. My IPDM went bad a year or so after I bought my QX56 (back in 09' with 45K miles on it) ...I had similar issues where my truck began to hesitate and stutter while driving and at one point would not start. I finally got it started and limped 4 miles home and from there, I self-diagnosed it as a bad IPDM. I was able to order the part from an online Infiniti dealer, got the part in a few days, and installed myself (very easy). From that point, I have never had this issue arise again in probably 11-12 years now.

I would suggest to your dad that if his IPDM is the original one and he's having engine hesitation and dashboard light and gauges going haywire, I'd say an IPDM replacement is in order. They are VERY easy to swap out ...do not pay a dealer hundreds of dollars to do this. There is a box behind the battery, open the cover and right there is the IPDM. If I recall, there are 4 or so screws holding it in place. Remove those, then there are about 7 connectors that you will need to disconnect. Each connector is different so you don't need to worry about remembering which goes where. It's as simple and removing each connector and reinstalling the new IPDM in reverse of how you disconnected the original part, screw back in place, put cover on, and you're good to go.
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TODOM711
Posts: 4
Joined: Tue May 15, 2018 5:26 pm
Car: 2012 QX56
2007 G35

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Thank you. I will relay the message and let him know whats going on. Hes had the car for roughly 11 years and it has a 120k miles and now started doing this.
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Socaldiablo
Posts: 89
Joined: Thu Jul 01, 2010 3:48 pm
Car: 2004 Infiniti QX56 - Black on Willow
2016 GMC Yukon XL Denali - Black on Black
2006 Ducati ST3
2008 Kawasaki KLX450r
Location: Carlsbad, CA

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I distinctly remember my gauges going nuts, like the RPM and speedometer needles quickly spinning back and forth quickly at idle and the engine hesitating like it was nearly out of fuel. If he doesn't have these symptoms, it may be something else. He got some pretty good life out of the current IPDM ...when these were going out years back, they were failing much earlier for many people, meaning vehicles that were only a handful of years old with much lower mileage than 120K.
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VStar650CL
Technical Expert
Posts: 8441
Joined: Thu Nov 12, 2020 1:25 pm
Car: 2013 Nissan Altima 2.5 SL
2004 Nissan Altima 2.5 S

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Might just be the ECM relay and not the whole IPDM. The clue to both is that there will be no codes in the ECM because it's losing electrical power and can't throw any. However, there will be "U" codes in the ABS and TCM if it goes down for more than 2 seconds before recovering.
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