Jeep Wrangler Transmission Problems & Cost | 42RLE / W5A580

The Jeep Wrangler was equipped with the 42RLE or the W5A580 (NAG1) transmission. But they aren’t without their problems though, so let’s look at some of the most common Jeep Wrangler transmission problems, look at cost estimates and figure out what you can do about them.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

Jeep Wrangler Transmission Models

Jeep Wrangler Transmission: 42RLE
Jeep Wrangler Transmission: W5A590 (NAG1)

Jeep Wrangler Transmission Replacement Cost Estimate

Pricing varies by model. To be 100% sure on pricing, have your VIN# handy and use our Get An Estimate feature to look up your transmission by VIN#.

Replacement Jeep Wrangler Transmission Prices:

TransmissionStreet Smart TransmissionAutozoneAdvance Auto Parts
W5A580 / NAG1249045103098

What are the DTC codes related to Jeep Wrangler transmission problems?

P0766 – Failed Shift Solenoid D – This DTC can be stored when there is a problem with a shift solenoid or the valve body.
P2703 – Failed Friction Element D – This trouble code can be triggered by a failed friction element like a clutch disc.
P0720 – Failed Input Speed Sensor or Output Speed Sensor – This trouble code is caused by a bad speed sensor on the transmission.
P0730 – Incorrect Gear Ratio – This issue could be caused by a number of problems, including a fault in the transmission control module, dirty transmission fluid, or a bad transmission solenoid.
P0657 – Voltage Problem in the ‘A’ Circuit – This transmission problem is often caused by a short, or bad ground on the PCM or PCM wiring harness.
P0700 – Malfunction in the transmission control system – This DTC is often triggered when there is a problem with the TCM, a wiring harness, a solenoid, or the valve body.
P0715 – Input/Turbine Speed Sensor Malfunction – This code typically gets stored when the input sensor cannot read the engine RPM, which can prevent the transmission from appropriately shifting gears.
P0717 – Input/Turbine Speed Sensor No Signal – This trouble code is generated when the PCM does not get a signal from the input speed sensor, which will prevent the computer from being able to determine when the transmission needs to shift.
P0791 – Intermediate Shaft Speed Sensor ‘A’ Circuit – This error can occur when there is a problem with the intermediate shaft speed sensor, most likely due to a bad sensor, wiring problem, or a failed shift solenoid.
P0793 – Intermediate Shaft Speed Sensor Circuit No Signal – The computer will generate this DTC when it cannot communicate with the intermediate shaft speed sensor.

Jeep Wrangler Transmission Recalls

None Found

Jeep Wrangler Technical Service Bulletins (TSB)

None Found

Common Problems with the Jeep Wrangler Transmission

Lack of Response
Leaking Fluid
Low Fluid
Burning Smell
Grinding or Shaking
Whining, Clunking or Humming
Refuses to Go Into Gear
Torque Converter Issues
Valve Body Issues
Transmission Noisy in Neutral
Gears Slipping
No 3rd or 4th Gear
No 1st or 2nd Gear
No Reverse
Dragging Clutch
Trouble Codes / Check Engine Light

Can I drive with a transmission problem?

If your Jeep Wrangler can still make it up and down the road, you might say “It’s fine, I’ll just drive it until I can get it fixed”. But that is not always a good idea, depending on the symptoms. You see, there are a lot of (very expensive) moving parts inside of a transmission, and if something isn’t right, continuing to drive with a transmission problem could damage something else.

How often does a Jeep Wrangler transmission need to be replaced?

The overall lifespan of a Jeep Wrangler transmission largely depends on how well it was maintained. Factory design flaws also factor into this equation, along with how/how hard you drive. But on average, we’ve seen the Jeep Wrangler transmission last for between 130,000-180,000 miles. A high quality replacement transmission however, can last considerably longer if all of the factory design flaws have been addressed and the vehicle has been maintained.

How are Jeep Wrangler transmission issues diagnosed?

It is fairly easy to guesstimate what the root cause of your Jeep Wrangler transmission problems might be, but you won’t truly know unless you have the right tools and experience. A good mechanic or transmission repair center will be able to connect your truck to a computer and find out which diagnostic trouble codes (DTC’s) have been stored. Once they know what to look for, they can perform a visual inspection to verify the problem.

How is a Jeep Wrangler transmission replaced?

In order to replace your Jeep Wrangler transmission, the truck has to be lifted from the ground in order to gain access to all of the parts that will need to be unbolted. Then the transmission can be lowered to the ground (typically with a transmission jack), so the new transmission can be installed.

Recommendations for Jeep Wrangler transmission issues?

To save time and get back on the road faster, have your 17-digit VIN# handy and you can get an online quote for a reman Jeep Wrangler transmission here, then find a local shop using our Find a Shop guide to install it for you.

How to Solve Jeep Wrangler Transmission Problems

Solution A: Buy a Used Jeep Wrangler Transmission

The quickest way to fix your transmission problems is to simply buy a used transmission or used transmission. These can be found at most junk yards, and they often come with a 30-90 day warranty. However, there’s no way to determine the actual condition of the internal components, so you could be spending a bunch of money to have the exact same problems. Plus, that warranty only covers the transmission if it’s defective, not the labor costs that you’ll have to pay.

Solution B: Buy a Rebuilt Jeep Wrangler Transmission

Another option would be a rebuilt transmission or rebuilt transmission. A local repair shop will remove your transmission, then install a bunch of new parts during the rebuild. The problem here is, the skills and experience of each transmission rebuilder will vary widely from shop to shop, so you could have problems from something that wasn’t adjusted properly. And the 1-2 year warranty might only cover you at certain transmission repair shops, in a specific geographical area.

Solution C: Buy a Remanufactured Jeep Wrangler Transmission

Many owners depend on their vehicle to commute and get things done. Their gasoline engines are designed to go 100’s of thousands of miles, so it makes sense to invest in a remanufactured transmission.

Need a replacement transmission? Get an estimate for replacement transmissions and local installation. Look up your transmission model by vehicle make and model.

What Transmission Do I Have?

What Problem Does Your Jeep Wrangler Have?

Let us know the year, mileage and problem you’re having as well as any trouble (OBD) codes you’ve found. If you’ve been given a quote or paid for a repair, we’d like to hear about that too!

Leave a Comment

Anthony Cox

I have a 1996 Jeep Wrangler Sport the problem is that it will run but you can shift into drive and the car will not move. I was driving on the freeway her a slight boom and all of a sudden the car was in drive but you have no control of how fast you were going because you could not accelerate pulled over and try to go again the car would not move when put in Drive what could be the problem

Corey Sensabaugh

2012 Wrangler jk po730 code incorrect gear ratio when check engine codes come on jeep stalls for around 10 seconds then drives fine with check engine light staying on. Cleared the code and it came right back on that evening. Was driving today to work and it was struggling to shift out of first. Then when I got on the interstate it struggled to get into higher gear. Today has been the worse it’s been. Any kind of help would be appreciated. Guess I’m going to take it to transmission shop hopefully it’s the shift solenoids or something cheaper not a whole new transmission. Say a prayer for me 🙏🙏🙏


2017 Jeep Wrangler unlimited with 7100 (yes, you read that right) 7100 miles started to lose power off a full stop a week ago. Just had no get up and go. Then check engine light went on. Called dealer who said to bring in. Transmission is toast. Dealer said at end of test drive (with same problems) car was put in reverse but leapt forward and wouldn’t reverse. Then wouldn’t move. I was told new transmissions are on backorder with no ETA. Dealer suggested it could be 2-6 months but that Chrysler parts has 30 days to respond before they can do anything. Also this dealership said they don’t do loaners to cut their costs. Wish I’d asked that when I leased it 😳

Chris Mantha

Jeep wrangler 08. Po731 and Po732. 194000 kms. The fist fist warning i got was an intermittent beeping and hot oil warning on the dash. As I went up the driveway about half way to the garage my jeep felt like it was braking or like a down shift that let off the clutch to fast. My transmission is an automatic. Oil was nice and red with no burnt smell and level is good. I was plowing my yard . Any suggestions?

A sad dad

My 20 year old daughter wanted Jeep Wrangler and for months she looked almost bought one , went the next day and was sold the night before. I tried to talk her out of it , tried to get her in a Renegade instead , she wouldn’t have it , nope a Wrangler. Then about 3 weeks ago she found one a 2013 Jeep Wrangler with only 52000 miles on it and I even thought it was nice looking. Then it happened the dreaded phone call with her crying , I asked what’s wrong she said she was going up a slight hill a common street in a big city and her transmission stop working. Then the beginning of a nightmare from mom and pop shop trying to squeeze 5000 dollars out of my little girl , then called a dealership and spoke to a service writer at Larry Miller Jeep and basically wrote me off after I explained it’s my daughter first Jeep with I thought had low miles. He said the drive train warranty had expired Jan 2018 and could do nothing for her so I then thought of AAmco transmission in Boise had it towed and with a 30 mo 50k warranty for $4128 in total , then made a call to Jeep Corporate office spoke with Ana and she said on some occasions a Jeep Dealer could have made a different suggestion on a goodwills claim with a tear down and submit to Jeep head quarters for a valuation and possible pro rated instead. Then I called the Dealership spoke to Sevice Mgr and he said yes if I could get the Jeep to him, I said after your sevice writer gave me no options I took it to AAmco transmission for repairs and he then asked the General Mgr of the Dealership and was advised they could do nothing. So a Very Bad taste from the person who sold my daughter a 20 K Jeep and now a 4K transmission and a Very bad taste not only from Jeep Headquarters and The Dealership, now if I hear anything from a Jeep owner I will spread this on internet and in person be weary of a Mercedes transmission in a Jeep not even a Jeep Product

John S.

Just had the same issue with mine. 2013, with the Mercedes transmission, only have 60,282m and my power train warranty was up Jan 18, so I asked if the dealer if they could at least give me some help on the parts cost and I would pay all the labor but they refused and when I called FCA they told me my warranty expired too long ago..a transmission at 60k miles is ridiculous. I have always done all my maintenance at dealership and now this. I will not buy another Jeep product.


Jeep liberty. 180000+ miles. Check engine light came on. Slipping gears. I just bought it and the transmission fluid is dirty. Doubt it has ever been serviced.


All light came on and radio went out. Came back with a check engine light. Wouldn’t change gears. I didn’t get the code but it read bad transmission sensor. The check engine light went out after tightening all grounds and power. I think it maybe speed sensors but not sure.