Infiniti QX80 transmission problem, jumping RPM, RPM surge, shifting problem

Рет қаралды 23,433

Жыл бұрын

2014 Infiniti QX80 150K miles.
Made a video of how to solve the problem. Spent money and time. Im not an actor and English is not my native language, but hopefully understandable.
Infiniti QX80 transmission problem, jumping RPM, RPM surge, shifting problem, groping gears...etc
I dont have video with odometer/rpms after all repairs., but running great!
Also note: if you have only one car (QX) you may not even notice the problem, I had few cars during 1 year Benz GL, X5, and Land Rover ..so you may notice the difference right away.
At the end - Don't forget Catalytic convertors! I had few times code, and now using 3rd (hopefully final) times of CATACLEN - it helps a lot and see the difference!

Пікірлер: 111

@focusbvi 9 ай бұрын

I used cetacean 3 times during 500miles, 1 bottle for 1/2 tank. Car runs like new, no issues at all, smooth rpms as it should be. When shifting gears rpm shouldn't drop less than 1,5 rpms! Unless you release the gas or go downhill. As I mentioned clogged cats or dirty O2 sensors partially causing rpm problem too, so there is few issues. (MAF, fan clutch, dirty fluids, possibly for someone is torque converter) Now I love it, but probably have to replace O2 sensors and cats in future....Have few new videos: cleaned throttle body and changed O2 sensors bank 2. Please check condition of engine oil! If wasn't serviced on time it may clog VVT valve solenoids!!! , I changed oil very 3k miles it was very dirty. As of today 3.16.24, runs well, but My GL450 Benz powertrain works better.

@reelrocknrolla4251 3 ай бұрын

Cats are expensive...

@mike602mike5 2 ай бұрын

I don't understand why the fan clutch will cause this problem do you? The voltage sensor makes sense I'll try that first

@focusbvi 2 ай бұрын

@@mike602mike5 I dont know too, but right after replacing it I noticed it runs much better. Possibly because it electomagnetic clutch. Just posted everything I did. If you have this issue... as of today I would recommend to check engine oil..if its dirty there is possibility that vvt valve solenoids clugged. Beside everything I did in this video I also was changing oil every 2..3 k miles because it was black

@alkalineph9446 9 ай бұрын

This video proves why it’s good to do your own research as a vehicle owner. To mechanics your vehicle is a job. To the owner it’s your investment.

@Mike-ht1ou Жыл бұрын

Thank you for posting the entire process. Shamful that first shop wanted 7k to rebuilt transmission, good reminder to always get 2nd opinion

@leonardolazarte8788 2 ай бұрын

Thank you so much.. I was about to trade in my qx80 but now im going to try all your suggestions!

@focusbvi 6 ай бұрын

Posting last update Part 3 kzbin.info/www/bejne/rHzbqHaPo9Zsq6s

@Pvsingh0314 11 ай бұрын

Thank you! I just got my 2013 Infiniti QX56 and it’s having the exact same issue as you described. I owned a 2004 Nissan Armada for 10 years and absolutely loved it. I am hoping for the same for this one. Appreciate the update!

@CH-iz9fv 10 ай бұрын

My transmission went out at 73K and the dealer honored at 70K. Had to get a new transmission because they said a line wore out. Now replacing the Cats. SMH

@user-cy9kc9yk3v 3 ай бұрын

Thank you 🙏🏻 it’s so useful information

@olabodealamu5297 9 ай бұрын

In my case, changing the valve body sorted it out in my Infiniti q40 2015.

@youngjoonrhee547 7 ай бұрын

Wow this is the exact symptoms I have with my 2017 qx60. I will try to follow your steps and I will share my results. Thanks a lot!!!

@focusbvi 7 ай бұрын

Qx60? I thought only 80 has this problem... qx60 has different type of transmission...and I believe electric fan.

@tenaytiousd34 5 ай бұрын

Thank you. I’m having this issue with my 2016.

@poohgraham1839 4 ай бұрын

Thanks for the video. My car is doing the exact same thing. I have a 2011 Q56I take it to the shop Thursday. I'm gonna tell them to do this cause. This other shop told me it could be the valve the valve body. And I'm wondering what should I do. Have them just fluffs the transmission fluid. Because I seem like my car. Always running kind of high like hard like in the idol. The r p m is like be jumping and it's supposed to be quieter than it is

@charleshemingway2102 Жыл бұрын

Great Info - Thank you. I am looking at buying a qx80 with 185,000 HIGHWAY miles and this can fix a LOT of issues. I forgot that VOLTAGE can be a serious gremlin on random issues. I grew up with only compression, spark and fuel as the only items necessary to diagnose a car. Adding VOLTAGE to the list. Thank you.

@focusbvi Жыл бұрын

Don't forget Catalytic convertors! I had few times code, and now using 3rd (hopefully final) times of CATACLEN - it helps a lot and see the difference! But If I would buy QX again ? - probably - NO ... 50/50 :)

@charleshemingway2102 Жыл бұрын

@@focusbvi all great info - thank you. :)

@asaadluaibi2111 Жыл бұрын

Excellent videos, Thank you.

@Alawi91 Ай бұрын

im having same issue with my nissan partol at first i thought it might be Transmission Mount problem but it looks clean and no issues there according to the mechanic but thanks to your video now im more aware of the issue than before with my problem my car voltage is good same as you have in the video so i don't think that's my problem i changed engine oil and got new battery on already so maybe i need new transmission fluid or sensor issue either way thank you for the information this could save me alot of money for sure

@YOVlogs 2 ай бұрын

I should watch ur video before i change the whole transmission gear and having same problems i will try all of ur fixes

@BambizzzzzleBaby Жыл бұрын

Great info, thanks for posting! Same issues going on with my 2011 QX56 and all the dealership told me after diag was "internal transmission failure" and quoted me $9200. I thought it was the torque converter too, so I got some Shudder Fixx additive, and it nearly eliminated the vibration. After watching this I'm going to try the sensor trick, and clutch fan will maybe fix the rpm flux.

@focusbvi Жыл бұрын

Do you have vibration?

@lavarbrooks3166 11 ай бұрын

Did that solve the problem

@devonblaine 23 күн бұрын

Just bought a 2017 qx80 with 157k. Rpm drop, shutter from 40-60mph. Did you get yours fixed?

@work2011 5 ай бұрын

Thanks ..very kind

@ritchiemathews1794 3 ай бұрын

Victor thank you so much for this information. I just purchased a ‘15 QX80 with 163k miles ’As Is’. Having the same issues you pointed out but my engine light is now on. Going to check the codes and hopefully the repairs don’t result in a money pit.

@focusbvi 3 ай бұрын

Check the code, may people saying it torque converter...changing tranf fluid 2..3 times may solve it, but it will take time, will not see results righ away

@Young1blood496 3 ай бұрын

@@focusbvi it is a bad car? I wanna buy a 2014 qx80

@focusbvi 3 ай бұрын

@@Young1blood496 no, its not bad car at all. I expected better interior quality and many things I don't like (have to make a video one day) but in general its good. If you buy one for 10k would be great, but not more than 15. I bought during COVID and overpaid a lot! Doing on time maintenance and its running better and better 180K miles

@milessmith4270 10 ай бұрын

Was there a smell coming from the engine?

@SpicyRok7482 26 күн бұрын

Ours was a defective/weak/sticking starter motor solenoid. Acted up in May while on a 2,000mi. trip...then began working fine. Then acted up again in Nov...same-same. Battery was good/strong. Checked terminal #50 ( cranking ) wire to starter motor...good & strong. FINALLY got the solenoid to stick...CLUNK! Repl. starter motor ass'y. Still going strong after 2yrs. 2014 QX80, 97K mi.

@aeiq1219 10 ай бұрын

Thanks for a great informative video. I think I will pause in buying this vehicle, it's a shame that it has so many issues for a $70K luxury vehicle. I've been saving for down payment for a used car that on average will cost $32K....it's too much money just to have to worry about huge repairs cost.

@focusbvi 10 ай бұрын

It's a nice looking truck until you own it. For 2011-2014 years maybe is ok. But for 2020..to make same ..no thank you! Poor interior quality, not accessible cargo area...many other small details make me feel that 2007 Benz GL450 for $7k more luxury than Qx for 20k

@Uae_soul 10 ай бұрын

Mine is 2011 really big problems happening every month now done 223k km today I just had enough from air suspension shocks and replaced them with normal shocks and last week A/C comp And same issue happened with me like in video I discovered cylinder no.5 not working because of coil and bank B sensor

@focusbvi 10 ай бұрын

@@Uae_soul Catalytic converters also a problem on qx, clogged cats also make problem with rpms, this engine very sensitive to everything, using "cataclean" and premium gas- runs like chemp! I believe I have to use Cataclean every 1000 miles or replace cats

@JoseSandoval-ic5xe 8 ай бұрын

Hi did your RPM jump too much by just lightly tapping gas pedal??Also did you have slower acceleration??

@focusbvi 8 ай бұрын

No, didnt jump. Good acceleration. If your rpm jumps when press pedal you transmission is sleeping... try to change trans fluid.

@focusbvi 8 ай бұрын

What year? If its qx56 11..13, I've heard radiaror may have a leak and mixing coolant with trans fluid..and it sleeping. It was designed as same cooling system and it changed at 14.

@JoseSandoval-ic5xe 8 ай бұрын

@@focusbvi it's a 2011 Kia optima and yes Rpms jump

@samuelm4486 10 ай бұрын

Mine does this, unpluged smart battery sensor, cleaned maf sensor, replaced air filter with k&n, did a spill and fill on the fluid added shutter fix, and i almost allways try to drive in tow mode (seems to help). I may need to flush the fluid again, it was super dirty with chunks in it. @98k miles Or maybe its the fan clutch.

@vamosajugarpelota 10 ай бұрын

Ok so just changed fan clutch. Runs perfectly now. Fan was spinning a lot after shutting it down and ac wasn't good at idle . Now it runs perfectly. Also added an injen cold air intake def recommend it was $250 added probably 20-30 HP. Then I did direct valve clean easy to do buy bottle at AutoZone undo hose and heat engine and spray runs so well like a brand new car. It does seem that the fan clutch has issues. The loud fan nosmise with my old clutch was louder but went away very fast like after ten seconds and then now with new fan clutch it sounds loud for a lot longer like one or two minutes. I alos added another torque converter fix. This car is awesome now so please thank you for posting.

@focusbvi 10 ай бұрын

Thank you for ubdates!!! My new fan also loud for abount 1..2min. Added one tube shudder fixx and using cataclen...runs great. I think I have to add cataclean every 1000 miles or reeplace cats (had code po430 already few times).

@vamosajugarpelota 10 ай бұрын

@@focusbvi sweet bro we will fix this together. Please get the cold air intake you can install yourself it's every ways totoaky worth it lots of horsepower and better mpg. It's $250. Also do the valve treatment you will notice a difference direct injection engines need that

@focusbvi 10 ай бұрын

@@vamosajugarpelota I would do intake, but already spent a lot, need a break. Just replaced starter, it another issue in qx, $1000. I have few times before that car didnt start...keep pushing start button and it started few times, but one day died, so keep in mind :)

@focusbvi 10 ай бұрын

What avarage mpg you have? I have 14.8, highway 22

@vamosajugarpelota 10 ай бұрын

@@focusbvi 13.1 but almost all city and I've been racing the throttle because it's a lot faster with the cold air. Hopefully it will go up over time

@shamsookraj1489 10 ай бұрын

2012 infinity qx56 was driving today, and all of a sudden the car wouldn't go pass 20mph!! I was so scared!! Because I was going up a bridge and was lots of car at the back!! I have a friend of mine scanned it. It says P0705 The Transmission Range Sensor detects what gear has been selected by the driver. This error may cause the transmission to not shift into gear because the transmission does not know what gear the driver has requested

@Brino50 8 ай бұрын

I have the QX56/80 and it's been one thing after another. I'm so financially in debt with this truck. I am close to spending $5,800-6,500 after a 14k purchase. Hopefully I'm at the end of my issues.

@stevens.8857 7 ай бұрын

Красава!

@pepetravel74 Жыл бұрын

Wao thanks very much for this amazing video, I have the same problem and not code , dealer remplace trans and nothing change, test drive multiple times and not come on,crazy, I’m going to remplace the fan clush in see what happens

@cho8447 Жыл бұрын

Did you change it yet? I got the same issue and curious if yours gets fixed with this.

@pepetravel74 Жыл бұрын

I’m not yet but I will let you know

@pepetravel74 Жыл бұрын

Ok this is a final result,thanks GOD I did change the fan clutch and all the problem gone,the truck is another one , the problem is because fan clutch and throttle body has the same electric wires 5 volts and when fan clutch slipped pull power because don’t work properly and cause the rpm inestable and also problem with trans shifting, so this fixed my problem thanks GOD

@jeremieadkins2858 11 ай бұрын

I have had a similar chain of events, 1. Mass air flow-swapped 2. Transmission slipping- Flushed ,added shutter fix with new fluid. 3. Had overheating issue- Flushed, clean, refill 4. Now it’s intermittent no start and I’ve poped 3-4 battery main fuses over the past year when I try to start the car if I idle more than drive. I’ve noticed that every time this has happened the battery is very very hot. I got a new battery from infinity and I have a charger and the extra battery that I can swap out if it gets too hot and won’t srart. The voltage reads 8-9 when it’s super hits if I swap and let it cool down. The next day it’s back up to over 13v without charging. I have a starter/alternator/plugs/coil packs on hand finally having enough of this. Anyone else have any similar situations?? After this video the heat tells me that the fan is just as likely as a short in the charging system😞

@pepetravel74 6 ай бұрын

After a few days problems still, crazy, I going move on to the ecu or software because after all change I done and nothing happens, it have to be ecu problem

@raven1969david Жыл бұрын

I have the same issue with the surging rpm, which typically happens in 4th gear. I’m about to replace my dirty transmission fluid to see if this fixes it. If it doesn’t at least the transmission fluid will be clean. I’m still trying to figure how the fan clutch would fix this? The fluctuating rpm should not relate to a fan clutch.

@focusbvi Жыл бұрын

Fan clutch was my final part that fixed everything. After replacing it I could feel that car runs different..like more solid... and i think takes more gas. The reason is because the clutch slipping and catching at 4th gear, when it catch rpms gows down... maybe Im saying something stupid, but it fixed problem. Also I forgot to mention the reason why I 100% decided to change the clutch, I noticed that at in summer, when drive and park but keep engine on my grill was how (expansion tank area) and even noticed white dry stain/spots on tank...meaning its overflow.. mecanick checked and said its ok, but... I even i tracked temperature and thermostat opens at around 90° but fan still didnt work fast enough. Also, maybe but can be wrong..noticed that I start driving on cold it was running ok

@focusbvi Жыл бұрын

Also went to Infiniti dealer to update transmission soft, they said my soft is good and no updates available, but they found something with idling and reprogrammed something...not sure if that made any difference with because clutch was already replaced

@imrankazi6058 Жыл бұрын

Can u pl recommend some forums so that I can benefit . Have a QX80 2015 model. Have a similar problem plus there is clunking when rapid slowdown . There is no issue in acceleration and gradual deceleration . All joints etc ok. My mechanic suspect transfer case sensor and shifter motor . He adjusted cleaned etc problem reduced but not gone .

@focusbvi Жыл бұрын

@@imrankazi6058 usually qx80 forums on Facebook

@glory1545 11 ай бұрын

Any news with the new transmission oil ? I’m having the same issue

@poohgraham1839 4 ай бұрын

I think my doing all of that and if I'm not mistaken, I think my RPM jump up-and-down too. And I think I got multi misfire if I'm not mistaken. I think the code is P0300 something a multi misfire code.

@hamidutunkara4297 Жыл бұрын

I’m trying to buy 2013 qx56 but I’m scared

@sattarquraish6445 6 ай бұрын

Hey I have the same problem on my qx80 and it turned out to be the alternator it’s weird but soon as I changed it everything works well

@focusbvi 6 ай бұрын

When did you changed alternator? Recently or long time ago? Why you decided to change it? It didnt give enough voltage?

@sattarquraish6445 6 ай бұрын

So I changed it yesterday because my car was not running great and it would stutter high pressure fuel pump and air leak codes were popping out and the rev would go up and down when I’m driving soon as I changed it all problems disappeared

@focusbvi 6 ай бұрын

@@sattarquraish6445 how air leak code related to alternator?

@jimmyp7082 Жыл бұрын

Qx80 shows number 1 in reliability in its class

@saraivy4497 Ай бұрын

@Rakan7ob 10 ай бұрын

Check the VVT sensor ,you will find two sensors in front of the valve cover, just unplug and clean it well

@focusbvi 10 ай бұрын

I dont have rpm problem anymore, but alway looking to improve. Did cleaning sensors helped you with any issues? What exactly?

@Tec9DaShooter 18 күн бұрын

@@focusbviwhat fixed your rpm issues?

@donnawallace1383 6 ай бұрын

O took mines and they quoted me 9000 its doing the exact same thing and they refuse to change my transmission fluid at the dealership! I think im going to take it to a private shop and inquire about my valve body❤

@focusbvi 6 ай бұрын

Dont change valve body, it didnt help. You may have to change trans oil few times, because a lot of oil sits inside torque converter and it only can blend with fresh fluid and months..or so. First clean your arif flow sensor...

@QSSCEO 9 ай бұрын

our 2017 Armada drives the same... just a clumsy 7 speed transmission. I drive it in tow mode... drives great.,,, this car has been nothing but a disappointment..

@erardogerona6682 Жыл бұрын

Hi have same ,only 27000 milles

@p61111 Жыл бұрын

Its a torque converter problem

@bp211108 9 күн бұрын

Yep.

@andreydinov5780 11 ай бұрын

Privet Victor. I believe you start running around and never solve the issue. Torque converter main problem at you mileage in this cars. Replaced and you never need anything else. I have 3 qx80 with total mileage 500k . If you service and take care common service car will never let you down. Replace converter and you can see the difference . Also sometime gas problem , get gas boster and clean gas lines.

@focusbvi 11 ай бұрын

Hi, at this point with everything I did it runs much better compared to what I had before, but I still feel something ...and would never notice it if dont have 2nd car gl450, so I see the difference. It diesnt har rpm surge, but feels like has no tourqe at low speed, Im thinking to replace torque convertor too. Thanks

@shamsookraj1489 10 ай бұрын

The Transmission Range Sensor detects what gear has been selected by the driver. This error may cause the transmission to not shift into gear because the transmission does not know what gear the driver has requested P0705 was the code

@vamosajugarpelota 11 ай бұрын

You say it fixed the issue but at the end of the video you have the same issue. Is it atill fixed?

@focusbvi 11 ай бұрын

At the and I put old video on background...(i didnt notice it when made video), I dont have that rpm surge anymore

@vamosajugarpelota 11 ай бұрын

@@focusbvi wow thanks sir God bless you for posting this will try

@focusbvi 11 ай бұрын

@@vamosajugarpelota many people saing it tourqe converter, ia also could be as an option, but some people said that aftr replacing it at the dealer still had same issue... so hard to tell what exactly fail

@vamosajugarpelota 11 ай бұрын

Updating you here. I changed my tranny fluid twice and added instant shudder fix. It does shift much smoother. I also had my exhaust manifold changed for the catalytic converter issue. When he was doing that he noticed loose tranny bolts on the top of the tranny he tightened them down now it shifts almost perfectly. Will add another instant shudder fix soon and update. The issue does seem to be torque converter with loose bolts you may want to have your bolts checked as mine could be loosened by hand literally. Thanks for the video bro!

@focusbvi 11 ай бұрын

@@vamosajugarpelota thanks for update. If you changed cats and add shudder fixx at them time you can not tell what exactly fixed the problem, but anyway bath of them had issues. Im using cataclean 4th bottle during 3k miles after last cats code. I dont have major issues with rpm surge at this time but has no tourqe as my Benz has, Im adding today shudder fixx too and will see.