10.0

really awful
Crashes / Fires:
2 / 4
Injuries / Deaths:
0 / 0
Average Mileage:
4,514 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2020 Jeep Wrangler engine problems

engine problem

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2020 Jeep Wrangler Owner Comments (Page 1 of 2)

problem #32

Nov 072024

Wrangler

  • miles

A D V E R T I S E M E N T S

The situation detailed in document ZD8 is currently impacting my Jeep, as well as an overwhelming number of other Jeeps across the country. It is quite distressing to learn that the part I urgently need-?"the coolant bottle reservoir-?"is entirely on backorder. To make matters worse, this particular component is no longer being manufactured. What raises alarms for me is how this scenario can be regarded as acceptable at all. It prompts serious questions regarding the nature of the recall, particularly since it has been classified as voluntary. This classification appears to be quite misleading, given that the issue extends beyond just specific Vehicle Identification Numbers (VINs). In reality, the problem has a much broader reach than merely the listed VINs, impacting a wider array of vehicles than is currently being recognized. It is troubling that so many Jeep owners are left without this essential part for their vehicles, beckoning a broader reflection on the accountability of manufacturers when faced with such significant issues. The extensive impact of this situation raises urgent calls for clarity, responsibility, and action to address the needs of affected consumers. This situation not only undermines trust but also highlights the pressing need for the automotive industry to prioritize consumer safety and welfare.

- Katy, TX, USA

problem #31

May 122024

Wrangler

  • miles
My Jeep Wrangler 2020 Sports Unlimited started malfunctioning on the road and the Jeep stopped, started smoking, caught on fire, and Blew

- Decatur, GA, USA

problem #30

Mar 152022

Wrangler

  • miles
In the document (ZD8), although my VIN does not appear, I have unfortunately encountered the SAME EXACT problem. My Jeep first exhibited this issue back in 2022, and I managed to repair it at that time without being aware of the existing recall. As it stands, my vehicle is now at the dealership again, plagued by the SAME recurring issue. In trying to resolve this, I have tirelessly reached out to every dealership within a 75-mile radius of Katy. However, none of them have the requisite part(s) available in their inventory. To worsen the situation, I have been informed that I would be placed on an exceptionally lengthy waiting list. I strongly urge you to conduct a thorough reevaluation since it's apparent that this issue extends beyond the limited number of VINs currently covered in the document. At one distressing moment, this defect triggered a heart-stopping warning while I was driving on the highway: -??Find a safe place to pull over; your vehicle is about to turn off.-?? Furthermore, this is the second occasion on which I have been compelled to address and replace the same issue. This situation is increasingly untenable, and it's vital that comprehensive action is taken to address this widespread problem rather than limiting focus to just the few VINs listed in file (ZD8).

- Katy, TX, USA

problem #29

Dec 122024

Wrangler

  • miles

A D V E R T I S E M E N T S

1. Corrosion which is a Jeep/Mopar known issue - paint bubbles on the aluminum doors/hinges. No recall/fix. 2. Death Wobble: Also known as loosing control to steer the car. This is a huge issue with all stock and this has not been addressed yet. There are a lot of videos and cases out there to proof this case. 3. Coolant Reservoir leak: Recently there are 276 coolant reservoirs needed from Mopar for this car configuration. Information provided by a Jeep/Mopar parts service employee.

- Tarzana, CA, USA

problem #28

Nov 302024

Wrangler

  • miles
Loss of power. Vehicle went into limp mode. Codes P00AF, P24B1 and P1DB1. Vehicle only has 28,500 miles and is having constant electrical issues.

- Graeagle, CA, USA

problem #27

Oct 212024

Wrangler

  • miles
The vehicle on multiple occasions has "lunged" forward while the driver had foot on the brake and the vehicle was near an idle mode. The most recent occurrence happened on/about October 21, 2024. The incident was report to Jeep Customer Service and they opened ticket number 91301121. Jeep advises to have the vehicle diagnosed but refuses to pay for the diagnoses of to verify the vehicle is safe to drive. I have advised them the vehicle is unsafe since this has occurred on multiple occasions. The latest incident involved the vehicle lunging forward 18-24" before the operator could gain control of the vehicle. The vehicle nearly missed the garage door framing and another parked vehicle in the garage. Had there been a person in front of the vehicle, they would have bee hit and the same could easily happen if a pedestrian was crossing the street in front of the vehicle.

- Wildwood, MO, USA

problem #26

Jun 232024

Wrangler

  • miles

A D V E R T I S E M E N T S

I was driving my 2020 Jeep Wrangler on the highway when all of a sudden I felt the car shake. I pulled quickly to the side of the highway as I thought I maybe had a tire issue. When I got to the side, the car was making a strange noise, so I called AAA to be towed. I had NO warning lights or anything to advise me that I was about to have an issue. I was lucky to get to the side of the highway without having a safety issue. After the mechanic checked out the car they noticed the Oil Pump had failed which caused the engine to seize. The car only had 63,176 miles on it with all the regular Oil changes performed at the jeep dealership. I had no leaks of oil, or warning lights and jeep didn't indicate any issues at the last oil change. I feel this is a big safety issue. Had I not got over to the side of the road, my car would be dead in the middle of the highway with no warning.

- Old Bridge, NJ, USA

problem #25

Jul 282024

Wrangler

  • miles
Unknown what started the issue. While driving it, service electronic control dash light went on. The vehicle started losing power. We were able to get to the highway shoulder. Other dash lights were going on as we were moving over. Immediately after putting it in park and turning the vehicle off, smoke started billowing out from the hood. The vehicle engine was on fire and it was completely destroyed. The only on-going issue we had with it was auto start/stop with both auxiliary and main battery having to be replaced twice over the course of 4 years. There was an active recall for fuel pump component and we were on a waiting list for parts from the dealer since Sept 2023 and we were still waiting.

- Reno, NV, USA

problem #24

Aug 192024

Wrangler

  • miles
The wipers were on and lights were flickering. The car does not turn on.

- Teaneck, NJ, USA

problem #23

Jul 172024

Wrangler

  • miles
on 17th July 2024 afternoon I was driving the jeep and the engine started smoking. I quickly pulled the vehicle to the side of the road and within a couple of minutes the engine was on fire. I have raised the issue with Jeep and awaiting their response

- Orinda, CA, USA

problem #22

Feb 152024

Wrangler

  • miles

A D V E R T I S E M E N T S

An internal defect in the 2014-2020 Jeep Wranglers with the 3.6L Pentastar V6 engine affects its rocker arms, lifters, and related valvetrain components, including the engine control module (ECM) software that controls the precise timing and function of the lifters. Specifically, the rollers of a Pentastar engine-??s rocker arms prematurely wear down, become loose, and then drop, which shifts the rocker arm out of alignment. The rocker arms then come into contact with the cam, scraping both components and creating metal debris. This Pentastar V6 engine defect creates an audible ticking sound that stems from metal particles and debris from the failed rocker arms and other components, contaminating the engine oil and circulating throughout the engine. This defect also causes engine misfires, resulting in bucking and surging, decreased engine performance, hesitation, loss of power, premature wear on internal components, and eventually catastrophic engine failure. The check engine light came on in my 2020 Jeep Wrangler with 69,000 miles. After having it read by a dealer, it showed the P219A code, Bank 1 air/fuel imbalance. The dealership told me that if the Jeep was running fine, I did not have to worry about it, as it was likely an O2 sensor. The code was cleared, and the P219A code returned the following day. It was driven approximately 500 miles before noticing that it began idling roughly and had an engine tick, which the dealership confirmed to be a valvetrain issue. The rocker arms, lifters, valves, and camshaft components of the Pentastar V6 engine in my 2020 Jeep Wrangler with 70,000 miles have failed. Three Jeep dealerships in my area and MANY online forums stated that this is a common occurrence with this engine, which has escalated my concern about this problem.

- North Branch, MI, USA

problem #21

Feb 102024

Wrangler

  • miles
Power steering failed and lost engine power. Very dangerous and potentially life threatening event. Unit would not start again for at least 15 minutes. This is the second time this has happened since the dealership was supposed to have fixed by changing out the battery. I reiterate THESE ARE VERY DANGEROUS EVENTS AND COULD CAUSE A FATAL TRAFFIC ACCIDENT.

- Apache Junction, AZ, USA

problem #20

Jan 112024

Wrangler

  • miles
Premature failure of the Particulate Matter Sensor - Mopar (68297518AA)

- Talking Rock, GA, USA

problem #19

Sep 042023

Wrangler

  • miles
Vehicle started to get extreme smell of gas fumes, interior and exterior, to the point it would make you nauseous. My vehicle was taken to a dealer where the tech noticed that a fuel pump was leaking and a fuel line behind the engine had a small hole in it and was leaking on the top and was unlikely debris hit it, to get at the line the whole motor has to get dropped. After reading the description of the fuel line/pump issues with the 2020 2.0 L, this seems that it would be related and part of the effected parts.

- South Amboy, NJ, USA

problem #18

Sep 252022

Wrangler

  • miles
Got stuck in an isolated place due to Engine Overheat. Found a Water coolant leaked due to loose bolt/screw on water pump inlet. I just learned that it is common to 2018-2020 Jeep Wrangler JLU with 2.0 Engine

- Fremont, CA, USA

problem #17

Jul 012022

Wrangler

  • miles
The contact's partner owns a 2020 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 22V767000 (Fuel System, Gasoline, Engine) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

- Las Vegas, NV, USA

problem #16

May 242023

Wrangler

  • miles
The contact owns a 2020 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 22V767000 (Fuel System, Gasoline, Engine) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

- Big Rock, IL, USA

problem #15

Feb 232023

Wrangler

  • miles
Engine revved at 5000RPM would not switch from 1st gear. Now engine is showing a cylinder misfire which is moving from Cyln. 4 to Cyln 3 and so on.

- Lackawaxen , PA, USA

problem #14

Jan 092023

Wrangler

  • 47,000 miles
The contact owns a 2020 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 22V767000 (Fuel System, Gasoline, Engine) however, the part to do the recall repair was not yet available. The contact stated while driving 70 MPH, the stuck throttle body warning light illuminated. Additionally, the vehicle stalled. The vehicle was taken to a dealer, where it was diagnosed with needing the computer to be re-flashed. The dealer replaced the brake controller and battery; however, the failure recurred, with the vehicle stalling and failing to restart. The vehicle was towed to the residence. The manufacturer was made aware of the failure. The failure mileage was 47,000. VIN tool confirms parts not available.

- Altamonte Springs, FL, USA

problem #13

Dec 012022

Wrangler

  • miles
2020 Jeep Wrangler jl 3.6 cylinder is loosing engine coolant causing engine to potentially overheat. Many forums are reporting this as a problem.

- Sneads Ferry, NC, USA

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