Part 1/2: Chrysler, Dodge, and Jeep NAG 1 transmission valve body 

Thank you so much for the video. In South Africa the technicians are useless. Your video helped to fix my Jeep KK transmission , and it is driving beautifully again. Thanks again and God bless you

This video is the best I've seen on the NAG1👍👍

Fantastic video, mate. Thank you for the time you took to do this.

This is really good stuff. Thanks!

man this REALLY saved me some time! great video

When removing the electircal guide bushing it's a 7mm not 17mm.

No it never have me any problems, the only reason I serviced it was because it's at 129k changed the filter and added fluid. Did a test drive and it did just fine. I got it back home and added another quart and since then it been shifting funny between 2nd and 3rd. The rpm's would rev up a little right before it would go into 3rd I'm thinking I over filled it and i probably damaged a shift solenoid. So I'm thinking that's the problem. i believe there are 5 solenoid in the transmission but I'm not sure which one is for 2nd and 3rd gear so I need a little help figuring this out.

Great video. My 14 Charger wasn’t shifting past first gear so I went to autozone and I was told I needed to change the speed sensor (on the valve body). I’ve followed all direction on this video but now the shift lever goes into gear but the car doesn’t go into gear. Basically undrivable. Any ideas?

Awesome video David, I found what I needed with your help. I was thinking of adding the b&m 10300 deep transmission pan on my nag1 for better cooling (holds 8qts but only thinking of using 7qts). Any advice on how much fluid I should fill afterwards. Thanks for everything in advance

2003 chrysler sebring. Took off the valve body cover, 2 large cylinders with springs fell out. I know where they go but along with them a small square metal plate fell out as well I cannot figure our where it goes.

One question, if I want to change only the connector is necessary drain the oil transmission?? Thanks

Another great vid, thanks for doing these. I did a drain and filter before watching this. 2012 Wrangler JKU 3.6L - nag1. I don't recall noticing a click on the filter alignment tab going back in place. Do you think there is any downside if the filter isn't aligned properly?

We have a third gear ratio code we did test the TCM solenoids there and one of them is not reading I think it is the TCC solenoid? 2013 Durango 3.6 L with the nag1

Do you know by any chance where is the temperature sensor located on this w5a580 trans? I have a faulty sensor code p0710

Excellent video, I watched them both and I'm having a little issue with my 06 5.7 charger. I recently did a transmission filter change, added fluid, drove it and it shifted perfectly so when I got back home something told me to add 1 more quart of fluid. Now I'm seriously regretting it now because my transmission slips only from 2nd, right between the shift to 3rd gear. Or right before it shifts to 3rd gear. The rpms would rev up just depending on how hard I'm on the gas right before it would go into 3rd gear. It only started doing this after I added an extra quart of fluid. All the other gears are fine. Im thinking it is a shift solenoid that's bad but I'm not sure which one it is. So having said what's going on what do you think the problem is and if it's a solenoid which one is it? Thank you.

Hello I am currently having a u0101 code on a 2006 chrysler 300c with the 5.7 i assume its the same tranny. Someone had suggested that the valve body can be the cause. Also when the u0101 code the abs and trac control lights also come on ans car will not auto shift and will not allow me to manually shift. I can shift from park, drive, and reverse just fine though.

Hey bro, whats up! I have a 2009 5SPD AUTO NAG1 SRT8 CHALLENGER, and i have 68,700 miles already on my car. Is a transmission fluid recommendable to change? I herd these NAG1 trans are very sensitive and i am concerned whether i will have slippage.

For 2008 Jeep GC 3.7, I was able to change all the O2 sensors except (Bank-2 Sensor-1), the connector is above the trans fill tube and cannot be accessed. What is best method to get to this connector? Does the trans fill tube have to be loosened or removed completely, thanks..

thanks for your video have the harness leaking will chang the o-rings on it :) to see if this will help ?

So wat needs replaced?? What are the parts

I have a nag1 trans in my charger with a p0741 code. I’ve done my research , the fluid is brand new , it vibrates real bad when I try to accelerate , slips , and stalls , What do you think the problem is ? Thanks

Hello sir. I have a 2010 Dodge Charger, just recently got a p0743 Trans code after the car was sitting for 1-2 weeks. Do you have any idea what might cause it? I believe car is stuck in limp mode. Immediately throws p0743 on start after clear

What shifting problem did the fix

I have no codes on my truck. my tranz when i put in drive takes a few seconds before moving and is slow about moving. If i put into reverse first move truck a tiny bit then into drive no problem. 07 3500 5.9 not sure of the trans. any help would be appreciated. THX

I have a 05 300 i overfilled it a bit, started slipping 2 to 3 gear then went into limp mode and started leaking atf from where engine and trans combine. Would limp mode be solenoids and what could be the leaking?

I didthis and now my car will go into gear but wont shift is my transmission gone? Or did i put the clip back in wrong?

Dose the car have to be in drive or neutral when u check the fluid level or can i just leave it in park

where is the transmission temp sensor located on a Nag 1

I have a 2005 jeep with same trans i have heard the conductor plate can cause it to not start or crank or anything. as this is what i s happening with mine. have you heard of this or had this problem on any vehicle. this is the last thing i can think of b4 i take it in and spend 1000's Thnaks.

Good morning, after watching this video, I swapped out a replacement Conductor Plate/valve body unit (was told by the dealership the conductor plate was my "issue", but they recommended replacing the entire unit, because "the valve body is $846, just a conductor plate itself costs them almost a thousand"...exact quote from my dealer...lol). I got this unit off ebay, the CP is brand new, they sent out a whole different valve body though. Installed it, went just find, thanks to your great video. Car drove just fine, shifted after ward etc during the test drive. Gave the car back to my daughter. She drove it for a day, now the car won't "shift" into gear (I can move the gear selector, and I know I've got the shift selector aligned in the valve body correctly, because it was going into gear)...does the TCU need to be reflashed or something? I'm at a loss as to why it would function "normally" for a 1/2 day, now it won't shift or even "go into gear".

Hello I just did this job in my jeep and am looking for some advice on refill

Help!!! I broke the center bolt in the connector adapter (4:55 in your video). Now the head just spins. How do I get the adapter out now? Is there any way to spin the screw once the hex head is out of the way? Can I break the adapter into pieces and replace it with a new one?

hello, I'm a new subscriber and a new mechanic. I have a 2006 jeep commander with codes p0700, p0730, p2767. I have ordered a Electronic shift solenoid to take care of the most common problem with this vehicle, but can you give me some advise on the rest of the codes. I have my sights on the transmission conductor plate that the speed sensors go bad on. please send advise quickly. thank you

I love you

I put new valve body and solenoid and filters put it all together went to start it no start and no park what did I do wrong 06 dodge durango slt 4x4 5.7 hemi can you help me out let me now thank ezze

Hi. I´m living in South America and I´m having this issue with my 2018 jeep Wrangler sport JK: Sometimes after a short drive, it won´t start. It´doesn´t even makes any noise or clicking (battery is new), all lights come in the dash as normal, and after a while (15 o 20 minutes) it´ll just start normally like nothing had ever happened. I´ve been reading a lot, and found out that this is a common issue caused by the park/neutral sensor wich I´m trying to find. My jeep has the TI2TJ transmisión for which I haven´t been able to find this sensor. There are sensor on the web for the 42RLE. Have you happen to deal with this problem? can you help me out if there such a sensor on this TI2TJ transmission or should i focus on something else?

My 2007 300 SRT is not slipping. During shifting from 2nd to 3rd the rpms jump. Do you believe this is caused by the ATC harness connector?

Can someone help me please. Recently I have a problem with my 08' c200 kompresor 5G tronic 722.6 transmission. It doesn't shift in 3rd gear Faulty code it's P2784

I have an 05 jeep grand Cherokee the front pump oring was leaking so I change it put the trans (nag1) back in and now im getting codes p0700 and p0730. do I need to get it reprogramed are what thanks

By any chance, do you have a video on how to completely rebuild the nag1 transmission?

I can’t get the plastic connector thing out after unscrewing it. It’s just stuck and now I’m stuck. Help please!! Edit: electrical guide bushing is stuck

Could a bad valve body cause the transmission to not shift out of 1st gear? Thanks

Hi - I am looking for a confirmation - I am getting the code p0700 and p1731 on my 2006 Jeep Cherokee Laredo 3.7, is this the fix for this code?

Perform each of the indications step by step and now my car does not make the changes. I get a code P0717 and P0657. Any suggestion? I'm desperate.

So today my 2008 srt8 challenger got stuck in first gear for a second and then it shift violently to 2nd gear and it worked fine after that what do you think went wrong or what should I do also I got a diablo sport trinity and I I reset the tcm accidentally thanks

Is this how you change the speed sensor board?

Have you ever heard of Jeep srt having a clunk noise during downshifting.

Hello. Do you know how much horsepower these NAG1's can take, with an upgraded valve body?

How much time is required to perform this procedure?

I've got a NAG1 question. like to toss the 5.7 with NAG1 FROM A 300c into Jeep wrangler with the NAG1. Instead of swapping just engine, would the NAG1 already attached to the 5.7 simply fit right into the wrangler? figure if its the same it would make it easier to keep the 5.7 system together.

I have a 05 jeep grand cherokee that doesn't shift off of 1st gear would it be the solenoids or conductor plate ?

I recently changed my solenoid pack on a 2008 dodge avenger sxt only to find out I couldn't do the quick learn because of a low temp reading of the trans fluid. I have to replace the trans range sensor, any idea if I have to drop the valve body to do this?

Does that take all the transmission fluid out by doing this?

Question I replaced speed sensor on my jeep commander 06 nag transmission vehicle started fine shifted fine two days later won't start I know there symptoms for transmission no crank no start could be that I have defective part

If i dont have warning lights on dash, what symptoms tells you that this is bad or going bad?

can i swap out the nag1 for the 8 speed transmission ?

Excuse me I have a 2010 Dodge Charger, could anybody tell me where the shift Selenoid is located, and If I replace the selenoid will I need an oil change as well?

Idk if any body will see my comment but I really need help I just don’t wanna buy parts like crazy I have two codes that came up I have 2008 dodge magnum I have this codes showing P2784 input/turbine speed sensor A/B correlation P0717 turbine/input shaft speed sensor circuit no signal Some one told me is the Transmission conductor connector Please help

where is wagoneer jeep 1978/1980/1983/1984/1986 chassis number location

Hello, I need to remove my whole NAG1 transmission from my ‘13 SRT 300. Is the best/only way to remove all the oil is opening the Valve body cover? Any advice / tips removing the trans would be great. Thank you.