BMW 750i 750Li N63 vacuum leak multiple cylinder misfire drivetrain malfunction check engine light

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Hi, I am Francisco.
We are a group of vehicle enthusiasts looking for Car meets, car shows, drag racing, roll racing, New cars, etc,..
this process is going to be similar to all BMWs with N63 engines
750i 750Li 550i 650i X5 X6 50i
engine vacuum leaks are very common to find on BMW N63 engines since the have multiple components made out of plastic and this can crack over the time causing intake manifold leak and as consequence misfires and low power.
wiring problem
low fuel pressure
injector failure
sensor failure
timing incorrect
defective or broken engine
bad shifting solenoids
low transmissions oil pressure
transmission oil leaks
transmission sensor problems
etc,...
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Vehicles in this video
2011 BMW 740i
popular models
E60 E61 530i 535i 545i 550i M5
E63 E64 645i 650i M6
E65 E66 745i 750i 760i
F01 F02 730i 735i 740i 740Li 750i 750Li 760i 760Li
E70 E71 X5 X6 XDRIVE 30i 35i 48i 50i
E90 E91 E92 E93 325i 328i 330i 335i 335d M3
F06 F12 F13 640i 650i M6
F07 F10 F11 528i 535i 535d 550i M5
F15 F16 X5 X6 Xdrive50i M
F30 F31 F34 F80 320i 328i 335i 335d 340i M3
F32 F33 F34 F82 428i 435i 440i M4
G11 G12 750i 750Li
G30 550i M550i
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[@whymedude88]

Thanks for the video. They are definitely helpful as I own a BMW 2013 550i GT with Xdrive. Again thank you from Canada

[@ManuelRodriguez-gg4tr]

I’m driving behind you on foothill and almeria decided to follow you since I seen your bumper sticker!

[@paulsandgren8625]

Hey Francisco. I just wanted to add that you should buy genuine BMW CCV hoses. I bought the less expensive Rein parts and that created a troubleshooting nightmare. This issue was on both sides as i tested each individually. After i installed the Rein hoses, i began to notice what sounded like a bad belt tensioner. It turned out to be excessive crankcase vacume at idle. It was so strong, it was sucking in air through the rear main seal. This lead me to removing the valve covers and replacing the oil separators which was suggested by bmw mechanic. After 2 weekends of that work. I ended up with the same issue. I then replaced the CCV hoses with genuine BMWs and the problem was gone. Lesson Learned. Dont cheap out on parts. If you can afford a BMW, you should be able to afford proper parts.

[@naderdana0]

Hi Paul I'm exactly in your situation. I bought pair of Rein CCV hoses but I have still same problem multi misfire in cylinders 1,4,5. If you're still satisfied with the result please let me know so I also buy genuine BMW CCV hoses.Thanks

[@paulsandgren8625]

@@naderdana0 hey Nader. I didn't have misfires, just excessive vacuum in the crankcase. If you are getting misfires, you may still have a vacuum leak somewhere. My car ran fine, it just was sucking air in through the rear main seal.

[@Rockardo_]

rein is oem for bmw

[@paulsandgren8625]

@Rockardo_ maybe so, but I had the same issue on both banks and they are 2 different part numbers. Maybe a bad run but I will spend the extra $ on genuine BMW moving foward.

[@williedochee3790]

Thx Francisco

[@rustymiddleton3742]

Another great video. I purchased the cheaper PCV breather hose from FCP and noticed an increase of oil pooling on my turbo seal (orange ones). I went back to the stock OEM option. Isn't this a problem? I know some people go to a catch can system to prevent this.

[@StraightModderps3]

My bank 1 pcv hose busted. Misfire on all 4 on bank 1. Replaced BOTH cuz the other one was just stating to leak. Deleted everything, reset everything. Went thru all modules. Everything is narrowing down. Cyl. 1 misfire, inlet-camshaft position sensor no signal, both flip back and forth between intermittent and permanent. I’ve fixed the pcv hoses, changed plugs, coils are fine. Runs rough, limp mode is gone but I have 0 boost. Like I start driving, doesn’t pickup at all, even foot to the floor. Brakes are hard to stop (booster is out) looking for my next leak.

[@boosted6ers]

More N63tu content please. Smoke testing this platform

[@022187jol]

Hola Exelente video donde tiene su taller?

[@morettigoincrazy6351]

Do you have a video about changing the lower ones?

[@yaroslavyaroslav5106]

Hi, Francisco! You videos are great support as usual! Most of my issues were resolved by fixing the vacuum issue. Only one pain is left. Mixture control 2: mixture too rich(BimmerLink) Vacuum fixed, air mass sensors cleaned and swaped. Error still popping up from time to time. Your advise will be appreciated. Thanks in advance

[@JonnyDrex]

Did you figure it out?

[@robertread4000]

I wish I had you for tech

[@garyvanremortel5218]

The new hoses/pipes are rubber instead of plastic so aren't as brittle. All that heat from the nearby turbos still degrades these, though not as much.

[@karubees]

Question for you I have a BMW 750Li xDrive I have several misfire after a tune up it was not like before he change my spark plugs. I got some ignition coil to see if that is the issue

[@redhotaxel2505]

Hello Francisco! Hola desde México, Amigo por favor dame una idea, yo mismo estoy tratando de resolver el asunto de los Multiple Missfires, cambie las bujías y desde ahí empezó el problema, he probado varias calibres (actualmente el gap es de 0.020"). Me podrías orientar en cuál es el spark plu gap correcto? Tengo un N63 doble turbo en mi X5 XDirive 50ia M Sport. Saludos!

[@stopcorruptioninozqoa2030]

I have had my BMW Xdrive50i n63 4.4 TT @ local bmw service centre . I was having engine light & drivetrain malfunction warnings . - I was told initially it was injectors - had them replaced $3000 for just parts - then they said now it PCV VALVE & hoses - then next was , throttle body , map sensor . - now it’s the intake manifold apparently.. looks like pin holes have been caused by extreme heat & pressure as it’s pushed the plastic out pressure has popped the plastic out - it’s melted also

[@angelbabyblue95]

What a fucking joke.

[@nicolehall8204]

I have a 2009 750i BMW 77000 mi. This is my first V8 so I'm not sure what the engine should feel like but it seems just a little vibrating. Is this normal?

[@user-re1cn9zx3p]

2006 BMW smoke coming in the car and the transmission giving me problems. It’s a loop and high on the computer I need help.

[@anhhoang-so7xw]

Hi, i owned a facelifted e66 v8 2006 750li, i ve been driving it for few years never really had any issue but 1 and this issue keep happening but it never actually cause any real problem to the car so i kinda ignore it, but it still bothering me and im not sure what cause the issue , hope u can help me out. I live in VietNam South East Asian country , the traffic here is quite slow so most the time i drive with speed under 30 miles/hour. This issue only happen after i start the engine and drive for 10-15 minus, and it mostly happen when i start driving uphill and slowly accelerate from around 25 miles/ h to 35 miles/h and that is when the car start a series of vibration/ shaking that i feel like it come from under/below the car. The vibration/shaking come in waves, it vibrating for like 2 seconds and then stop for like 0.5 sec and then vibrate again 2 secs and repeat few times. When i almost reach the top of the hill , it stop. I really confuse about this and its been happening for years and no mechanic in my city can actually figured out the issue correctly. Please help me out on this , thank u so much.

[@linjay1448]

I got p13B7 and random misfire codes… help

[@kingofnewyork3]

I removed and replaced the top and now I hear it whistling 😗 at the bottom

[@Awasas]

Hello sir How can I communicate with you

[@kidsavage86]

Mine is only misfire on cylinders 7 8 and won't go pass 2k rpm

[@bjrneide9888]

I dont get what he says you have to do with the pcv valve BEFORE I start the engine after they are replaced. I have tried multiple times but cannot understand what he says, sorry😔

[@autogirl53208]

Delete codes

[@autogirl53208]

Oh n check the hoses for dry rotting or holes

[@rodwyatt8427]

i have a 2008 750LI. it has multi misfire on cyls. 2,4,5,6,7and 8. Any idea where I should start?

[@JuanArredondo]

Did you get this solved?

[@showrunner2183]

? Was it fixed?

[@angelbabyblue95]

Start by driving it into a tree and moving on from this SHIT platform

[@christianlozano3456]

Do you have a number I can contact you on? I have a 750li that i cant figure out