2021 Jeep Gladiator Engine Problems

The contact owns a 2021 Jeep Gladiator. The contact stated that while driving at 60 MPH, there was an alarming amount of white smoke emanating from the engine compartment and permeating the interior of the vehicle, prompting the contact to pull over to the shoulder of the roadway and evacuate the vehicle. Moments later, the entire front of the vehicle was completely engulfed in flames. Local Emergency Services arrived on the scene and were able to extinguish the fire. During the failure several unknown warning lights were illuminated. The vehicle was towed to the residence and deemed a total loss by the Insurance provider. A fire report was filed and preliminary findings on the potential cause of the fire were provided but the contact was unaware of the cause. A Police report was filed, and injuries were reported. The contact's father suffered minor burns to both hands but had not sought medical attention. The manufacturer was notified of the failure, a case was opened, and the vehicle was retrieved for inspection. The manufacturer provided a determination of the inspection, and the vehicle was returned to the contact without providing the contact with the cause of the failure. The failure mileage was approximately 20,000.

Multiple cylinders miss fire, Camshaft 1 position slow responding. cylinder2, 4, and 6 repeatedly misfire. Passenger side engine is making excessive noise. This is the information given to me by Van Horn jeep mechanic. also confirmed by advanced auto. Advanced auto stated this is the 3rd jeep they have had in their shop recently to replace a faulty Camshaft. My Jeep only has 66024 hwy miles. Vin [XXX] (2021Jeep Gladiator) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Failed Right intake camshaft and roller rocker arm. Failure causes misfires and limp mode to be activated when trying to pass and accelerate and in my case was while going up a hill and unable to complete a safe pass of another truck. Known issue by Jeep and Stellantis as they have redesigned a kit for this specific part and upgraded software to increase pressure to the oiling system, but they have failed to replace parts and are 12000 orders behind on parts at ths current moment truck has been undriveable for greater than 45 days. Flashing check engine light and warning lights in place

The contact owns a 2021 Jeep Gladiator. The contact stated that while operating the vehicle a valve knocking noise was present coming from the engine compartment, the check engine light had illuminated and the vehicle would not properly accelerate. The contact received codes that indicated an engine misfired in cylinder three and cylinder five. The vehicle was taken to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failures. The failure mileage was 98,000.

2021 JEEP GLADIATOR. CONSUMER WRITES IN REGARD TO STOP/START SYSTEM NOT FUNCTIONING. THE CONSUMER STATED THE STOP/START FEATURE READS AS NOT READY. THE DEALER WAS UNABLE TO DETERMINE THE CAUSE OF THE FAILURE.

Engine oil temperature reached 265 degrees while towing within capacity - engine derated power and I could not drive above 35mph on a road with a speed limit if 75mph. It was dangerous!

3.0 EcoDiesel in the Jeep Gladiator has cooling issues. Thousands of users affected and discussing on forums and on Facebook groups but the manufacturer is unwilling to fix. Core of the issue is that the engine was altered in the Gladiator and Wrangler over previous installations in the Ram and Grand Cherokee by removing oil coolers and a larger oil pan, which has resulted in high oil temps. At 265 degrees (which is accomplished easily during the summer with a trailer UNDER the tow rating), the engine starts derating and limp mode. The aftermarket community has tested everything ... removing hoods, fenders different cooling solutions, etc and nothing is working at the moment other than aftermarket solutions to cool the oil (which are negligible at best at the moment due to the space constraints imposed by the engine being quite large in the engine bay not not substantial room for a larger oil pan and external cooler). Chrysler should have put more work in to the design, or not sold the EcoDiesel in the vehicle.

When operating the vehicle under heavier loads (5%+ grades, towing even light trailers, higher highway speeds) vehicle loses power limiting speed to 15-50mph depending on how hot the water or oil temperature is. I have had this issue in ambient temperatures as low as 31°F while towing 4000lb up a steep incline, but will absolutely overheat if ambient temp is over 100°F. Vehicle must be left running during a fuel stop or heat soak caused by the vehicle is not running will prevent me from merging back on the highway at a safe speed....max speed is 50mph until the engine oil cools off. Air conditioner use as expected makes the problem worse. There are many threads going on the Jeep internet forums with many diesel equipped Jeep Wranglers and Gladiators having the same issues, so I know these aren't isolated incidents from my vehicle alone. If you were to search "Ecodiesel power derating as temps rise" on Google, you would see some discussion. Engine fan runs at full speed, coolant is full, and radiator/grill is clean/free of debris. I have owned this vehicle since new and have operated in many types of conditions/loads over the past 14 months 23,000 miles from 9°-126°F. The first time I had the issue was late May of 2021 (At approx 5,000 miles) and it has happened no less than 20 times since then. The only visual alarm is when coolant temp reaches 248° and the vehicle speed drops to 10mph. The gauge does not read linear........Meaning the vehicle is almost already overheated by the gauge shows the temp is rising. I can only assume the is intentionally programmed into the code by the vehicle manufacturer to make the operator feel like the high temps are normal. I have not had the vehicle inspected by the local dealer because in the past they were never able to duplicate the conditions in my opinion due to laziness or incompetence. I own an auto repair shop and know the problem to be an undersized cooling system which Chrysler does not have an approved fix for.

Overheating during normal driving.

The contact owns a 2021 Jeep Gladiator. The contact stated that while driving at an undisclosed speed, the vehicle made abnormal sounds. The vehicle was taken to the dealer and was test-driven; however, the dealer refused to diagnose the vehicle while it was covered under warranty. The vehicle was then taken to an independent mechanic, who diagnosed the vehicle and determined that the camshaft had failed, and the engine oil cooler housing needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 25,000.

I was driving the vehicle, while towing a 5000lb trailer (vehicle tow rating is 6000lb), up a 4-5% grade at 4000'-6000' elevation, with ambient temperature around 80 degrees, and the vehicle unexpectedly derated / limited speed to approx 45 mph with no warning indicators on the vehicle. I had a number of cars and semi trucks behind me, and so I unexpectedly needed to find a safe place to pull over, which was limited due to the road conditions. I travel in areas frequented by semi trucks with limited shoulders. If I had not found a pull-out, this could have been dangerous. This appears to be an issue countered by a number of Jeep Gladiator Diesel owners, relating to either engine oil temperature too high, or EGT temp too high when towing uphill.

The vehicle auto starts when the defrost is turned on below the max or full setting. The owner’s manual specifies that “the engine will start automatically when” the “HVAC is set to full defrost mode”. The vehicle is operating in direct conflict with owner’s manual. This auto start issue poses a serious safety hazard as the vehicle will unexpectedly start and may begin to roll when the driver is not ready. Additionally, if someone is operating on or under the vehicle, it will result in a serious injury or the loss of a finger when the vehicle auto starts in violation of the driver’s intent. The unexpected / wanted start could cause a collision with another vehicle or pedestrian leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

The vehicle auto stops when the defrost is turned off, in direct conflict with owner’s manual. The owner’s manual specifies that “HVAC is set to full defrost mode” will prevent an auto stop, but preventing the auto stop is the opposite of initiating the event. Additionally, this issue occurs when the HVAC is operating at less than full defrost mode. Furthermore, the instrument cluster never presents a “STOP/START READY” message which is the first necessary condition for an auto stop. This issue creates a serious safety hazard, as the vehicle presents incorrect information to the driver and the vehicle unexpectedly stops in traffic which confuses and distracts the driver. The unexpected / wanted stop in heavy traffic could cause a rear-end collision leading to serious injury or death. The malfunction was reproduced and confirmed by multiple service personnel, who expressed safety concerns. The malfunction was also recreated by 4 independent mechanic shops and documented as a safety concern. However, an FCA Technical Advisor (TA) claimed that the vehicle is “operating as designed“. This portion of the vehicle’s Auto Start / Stop System is NOT operating as designed and documented in the owner’s manual. I feel unsafe driving the vehicle, as this is one of numerous hardware / software malfunctions plaguing the vehicle. The vehicle is available for inspection upon request.

The vehicle randomly stalled out / died while idling, with the clutch pedal fully engaged. This poses a serious safety hazard as the vehicle may unexpected stall out at a traffic light or while driving resulting in a serious accident. The most likely risk is a stalled out vehicle in heavy traffic resulting in a rear end collision. The vehicle stall out and failure to maintain idle malfunction was reported to the local dealership and an FCA Technical Advisor (TA). The vehicle’s stall out was witnessed and documented by an independent mechanic. However, the dealership and FCA TA continue to state that the vehicle is “operating as designed” and that “this is normal characteristic of the vehicle”. These claims indicate that the Jeep Gladiator Engineering Design Team intentionally designed the vehicle to stall out with the driver completely pressing in the clutch pedal. The vehicle is available for inspection upon request.

The vehicle’s throttle bounces and surges off idle, in direct opposition to the driver’s inputs to the controls. After the driver lifts off the accelerator and engages the clutch, the RPMs drop slowly to idle, then the throttle regularly bounces and surges without user input to the controls by ~500 to ~1,500 RPMs. The issue occurs while driving in every gear and or in neutral. The issue occurs frequently but not every time. The issue occurs with or without the driver’s foot on the brake. The failure to maintain idle malfunction was reproduced and confirmed by multiple service personnel at the local dealership. However, the Service Director falsified and backdated the service records to claim that they “couldn’t duplicate concern” and that the “vehicle is driving normal.” The throttle spike off idle was recreated by 4 independent mechanic shops and documented as a safety concern. An FCA TA claimed that the vehicle was “operating as designed“ both when he could not recreate the issue and when he could recreate the issue. Both of these statements cannot be correct and factual as they directly contradict each other. The throttle bounce and spike off idle substantially impairs the vehicle’s use as it impacts normal driving operations such as shifting, accelerating, and braking. The throttle bounce off idle creates as serious safety hazard as it causes the driver to delay or miss shifts in heavy traffic and divert attention from the road to the instrument cluster. The issue also creates a serious safety hazard as it induces driver confusion by making them think they accidentally pressed the accelerator while shifting. The claims of “operating as designed” indicates that the Jeep Gladiator Engineering Design Team designed a vehicle to spike the throttle without driver inputs to the controls. The vehicle is available for inspection upon request.