Just passed 111,000 on the odometer and still runs like bad new. You're the man Gary

Great video.. I always learn More and more from your videos

Good deal all this drive by wire stuff depending on too much on electronic stuff rather have manual park release and know it will always come out of P, love the vids so much information to learn from Thanks Gary

Great stuff, I m going to refer to this video in my short…

Can extreme cold cause this to happen? I’ve had this issue twice and both times it was -20 to -30C. First time, it fixed itself. This second time, it’s still stuck in park. Hasn’t worked for a day

I knew about one BMW 525i that was doing that problem. Thanks and good video.

Good Sunday morning Gary.

Great video thank you Gary

Hi I need your help ...my f30 gearbox get water...the gearbox cooler broke so coolent lick into the gearbox...I removed the gearbox clean it up...now I have this fault code 420641: Parking lock defectively engaged...please help me please

Hey Gary I have 2015 dodge charger p1b14 park by wire code it drives and shift fine sometimes it will shut the car off while I drive then come back on have to put it in neturel and then drive then works fine sometimes I'll have to restart the car when that happens

Hey Gary I’m getting these codes on my 2016 jeep grand Cherokee Srt these are the following codes : P1b14-00, and various transmission incorrect gear ratio error codes. The truck does go into reverse but that’s before the service shifter light starts to blink and transmission goes into a limp mode. Going forward the car slips in all gears until light flashes and the rpm just begin to rev and leave me stranded. One more thing to add is the parking break override in the center console is broken and won’t sit back into place

Hey, Gary. What happens when the car dies and there is no pressure in the trans? Do they fingers stay engaged to not allow the car to go into park? Great video. I'm just trying to wrap my head around how these awesome transmissions work!

Hi Gary I have a zf8hp70 code I’m getting is 420641 parking lock defectively engage: plausibility, drivers command/sensor feedback any ideas on what can possibly be wrong, I shift to D or any other gear and immediately goes back to Park position thanks in advance

Hi gary , The same code P1b14 has appeared to me in 8hp90 for dodge hellcat , and I have a problem that the gearbox is not responding. Can you help me to find out the causes and solve them?

P1B14 P1DB6 P215C ScatPack Charger , transmission replaced used same pan and TCM in new transmission filled it up got a transmission tune was shifting hard when dropping gears , than I realized a small leak no my car won’t go into any gears stuck in park with those codes. Think it could be a tuning issue? Fluid issue? Or replace the trans

How about the P07BE00? I cannot shift to P sometimes after the fluid change without pan removal. car is only 24k miles. Thx

Hey Gary I have a 2017 Durango with this same error code. Is that something I can still drive with or is this something that needs an immediate fix????

That was very informative..I was wondering if you can help me as well..MY bmw f20 with the zf8 hp45 had transmission issues and entered failsafe mode..Once I stopped it wountget out of park..It was checked and two solenoids had issues due to low transmission fluid..however, even after the solenoids being replaced and fluid being refilled as well as adaptation reset..The transmission still wont get out of park..please help..no mechanic seems t o know how to fix it..there are not transmission faults as well..just a drivetrain error with the message engaging transmission position P

I have a park by drive code what do I need

Hey Gary, I’m hoping you will be able to answer this. I put a Zip Kit on my 8HP70 valve body and all seemed to go well, until I was filling the trans fluid and when putting it in neutral , it was in Drive, wheels spinning and all. Any clue what it might be? Then after getting code P1DB8, it wouldn’t come out of Park. Not sure what went wrong. Thanks

Hey Gary great work, at what time did it failed, how many miles

Hi Gary I have a question for you I have a 2014 Jeep Grand Cherokee went into limp mode my Autel scanner says P1 DAE -00 Position valve stuck. 6th trans limp ? Sometimes it's fine other times more in the mornings goes into limp mode most of the time .... Once a transmission warms up it seems to run a lot better. i've changed the Tran fluid and filter .. I don't know it's a short or just like says gear 6 solenoid valve .... I also have a small oil leak my oil cooler filter area. At a hot idol the oil pressure is at 23psi. ??? Anything direction help

Even back in my dealer days, Chrysler told us not to open them or mess with fluid/pan unless there was a leak... I've still never done a service on one.. I bet if you made a dedicated how to service video, it would be a massive hit.

hello excellent teacher! I have this code with ram 1500 2013 the TCM literally burned, it was changed for a used TCM, the truck started but turning the knob to R activates the P1B14 code and flashes, any recommendations please

Hi Gary, thanks for the great video. I ask this to you because you know very well the ZF8 transmission: could Xhp stage 3 (a TCU tune that makes the shifts a lot faster, like a DCT) hurt my transmission? I have an F31 320d 184 hp with ZF8HP45. Thanks in advance.

Hi Gary - great video, thanks for posting it. I have the same scenario (aftermarket pan fail) from your two videos on this topic for my 2018 Ram w/ 108k and have the correct parts on the way in 3 days. During my state of low pressure due to pan leak, I could not get the codes (P1B1300, P07E400 in trans module and P091900 in shift module) to clear for even a moment. Scanner would "fail to erase." The whole issue keeps my truck unable to shut off the ignition, kills the engine if I put the dial in Park more than a couple seconds, etc. Engine runs well in R N and D, but trans is no better at any temperature. Assuming I get it back together correctly in 3 days, should the faults to be able to be cleared, or should I plan a tow to a dealer or trans shop to clear/reset? Also, would you recommend getting the valve body tested in the interim period? Or best to leave it in place? Only drove it 1 block and back with the problem since it was really struggling. Any advice appreciated!

Hey Gray I’m having a problem with my 2014 jeep grand Cherokee every time I go to put it in reverse or drive it go right back to park but if I let it sit for a couple day it will let me drive but only so far I needed a oil housing filter radiator because it was a big leak and the oil and coolant was leaking from the top that it was leaking all the way to the bottom which it looked like it was leaking from the transmission but apparently that wasn’t the problem but I needed up getting a new radiator and oil housing and still can’t drive but when they plugged it up the code said “ park by wire so I was wondering can you tell me the reason I can’t drive my truck

Gary, I have a ZF8HP45Z and it has a Code 420634 Position sensor: Parking lock is in intermediate position for too long. The car goes into Park, and out of Park and drives just fine. I am thinking it’s a short on the position sensor, but I am unsure. What does your experience says?

Would a FAULTY BATTERY cause this? This code didn’t pop up until my battery was actually disconnecting due to loose terminal connections

Hi if stack on parking and not chahge. Even replac full transmission. Still same

what was the problem? the valve?

Gary, you mentioned resetting adaptations. Would you do it after change of oil pan and flush oil change? I intend to overhaul mine, just not sure if I should or shouldnt reset? Would the adaptations be fine after reset just by driving, or would it be better to do the actual adaptation process? TIA

good morning Gary, I have a problem with this transmission... when the car is cold and I put it in reverse the car goes forward. It has to get hot for it to work right. Do you think it is a problem of mechanical valves or solenoid valves. regards

Hi Cary thx for the great video I want to ask this to you coz you know very well zf8hp gear I have an x6 and I face vampire shift on 2hp and 4 hp I changed the oil and filter but the problem still there I love to hear your opinion about this issue Thx you

Aye Gary !!! Some I was told you was good . So look long story short I have a 2007 bmw 525i everytime I put the car in drive it don’t go ... so I got the transmission replaced and the guy still saying something about the shift, can you give me some tips , do you think they need to Program the car?

Hello Gary. I have zf8hp45x transmission. Due to some issues I changed the oil removed solenoids and installed everything back filled up oil and tried driving the car I felt like the clutch takes time to shift each gear. So I againg filled oil at 50degree temperature and there is a little bit of oil extra in the transmission, now the car won't go to park, only neutral. I left about half a liter of oil extra as it says in zf manual if you have oil cooler you have to pump half a liter extra.

What could cause the gearbox to move into Park uncommanded when the car is stopped in D?

Hi gary i need your help , i have a 2017 jeep GC zf8hp50 with those codes permanent p1d93,p1d99,p1b14,p0731 Stuck in firts gear.

Hello Gare, how are you? can you help me please ZF8hp45 jaguar fpace P07B3-11 and P07B4-15 thankful

I have the opposite problem. 8hp going into Park from D uncommanded when stopped. Anyone have any ideas?

I’m having p1db8 dodge 2016 have you ever experienced this before

What fluid levels?