2021 Hyundai Palisade fuel system problems

Filed Nov 9, 2026 · Engine, Fuel system · IL

I was driving then all of a sudden the engine just died. I tried numerous times to start the engine, and it would not turn over. There is a full tank of gas and there is no issue with the battety

Filed Oct 9, 2026 · Engine, Fuel system · OH

Due to a known oil consumption issue the manufacture replaced the engine using a short block swap, they used the old fuel injectors and during the swap one of them failed, becoming stuck open. Now they refuse to fix it without me paying for labor. The failed fuel injector occurred immediately following a mandatory manufacturer engine replacement and poses a thermal/fire hazard.

Filed Sep 1, 2026 · Electrical, Engine · IL

I am reporting a potential safety defect involving my 2021 Hyundai Palisade Calligraphy AWD. The vehicle has experienced repeated engine and drivability problems and multiple breakdowns following replacement of the engine by Hyundai. The original engine developed excessive oil consumption and was ultimately replaced by Hyundai with a new engine. Following the engine replacement, the vehicle experienced numerous additional mechanical problems and repair attempts, including engine rattling/pinging, intake-manifold replacement, oil valve-seal replacement, multiple cylinder misfires, ignition-system problems and an ignition-coil failure. Most concerning are repeated incidents involving severe shaking/lurching, loss of engine power, stalling and failure to restart. During one incident following repairs, the vehicle ran extremely rough, stalled and would not restart after approximately 20 miles of driving and had to be towed back to the dealership. During another incident, the vehicle experienced heavy shaking on startup, stalled and had severely limited power. Diagnostic history showed misfires involving multiple cylinders. On June 29, 2026, at approximately 103,671 miles, I was driving at approximately 50 mph when the vehicle began to lurch and shake, lost power, stalled and would not restart. The vehicle had to be towed back to the Hyundai dealership. The unexpected loss of propulsion and stalling while traveling at approximately 50 mph created a serious safety concern because I could no longer rely upon the vehicle to maintain power in traffic. The dealership subsequently identified an ignition-coil short/failure and replaced an ignition coil. The vehicle has nevertheless continued to experience additional mechanical problems. The vehicle is currently again at the Hyundai dealership. It has generated diagnostic code P0430 for Bank 2 catalyst efficiency below threshold, and Hyundai has recommended replacement of both catalytic converter/manifold assemblies. Th

Filed May 4, 2026 · Body, Brakes · GA · crash · 5 injuries

While driving, the vehicle in front of me stopped suddenly. When I pressed on the brake pedal it felt stuck and did not respond properly. The forward collision automatic braking system did not activate. This resulted in a crash. After the incident, the vehicle had fluid leaks and severe front-end damage and is not drivable. I am concerned there was brake system failure prior to impact.

Filed Apr 30, 2026 · Engine, Fuel system · TX

The vehicle would shut off when idling at lights or in reverse and have delayed acceleration after stops. It also would shut off when idling in park. I took it to the dealership summer-fall 2025 and they were too busy to investigate the issue because no alarms were present. The vehicle started doing the same thing and the check engine light came on March 2026. Now it has been in the shop for many weeks because of an fuel injector issue. The dealership service department says all 6 injectors need to be replace, but warranty won't cover them all. This appears to be a common issue with 2021 Hyundai Palisade vehicles and should be investigated for a safety recall.

Filed Apr 1, 2026 · Electrical, Engine · MD

A week or so after taking the car in for an oil change, I was on the highway and heard a rattling sound coming from the engine. There were no indicator or warning lights from the dashboard. The car then stopped accelerating. It was on, and the accelerator increased the RPMs but the car did not move faster. I safely got home and checked the oil and it had less than a quart. There were no low-oil indicator lights telling me the oil was low. Separately, this week, while driving in the city, the engine again started making rattling sounds and completely shut off forcing me to pull off the road. Again, prior to the shut off there were no indicator lights. I was able to pull to the side of the road safely. I tried to restart the car and it would idle roughly befor the engine shut off again. After waiting 30 minutes, I checked the oil to see if the previous cause was the culprit, but this time the oil was still full. After 45 minutes, I was able to restart the car and drive home. I researched the issue and there are many complaints on Reddit about this for this make and model. Since the issue is intermittent and can't be replicated at the dealership, there is no fix offered. I no longer trust or feel safe driving this car, especially on highways.

Filed Mar 24, 2026 · Engine, Fuel system · AZ

The car will start shaking, can’t exceed a certain mpg, and does not speed up. The check engine light comes on. The car is available for inspection. I drive on the freeway and slowing down, and shaking can cause accidents. This a continuous problem.

Filed Nov 2, 2025 · Engine, Fuel system · FL

I own a 2021 Hyundai Palisade Calligraphy with approximately 114,000 miles. The transmission had to be replaced at around 98,000 miles. Recently, before my next scheduled oil change (I had about 1,000 miles left), my vehicle suddenly began making a loud knocking noise and lost power. The dealer informed me that the engine may have blown. There were no warning lights, oil indicators, or overheating signs before this happened. The car has been regularly maintained and serviced with timely oil changes. This appears to be a premature engine failure possibly related to oil consumption or an internal defect, as many other Palisade owners have reported similar issues. Hyundai Consumer Affairs has been contacted, and a case number is being opened for review. I am filing this complaint to report a potential widespread engine problem and request investigation into 2021 Hyundai Palisade engine reliability and oil-related failures.

Filed Apr 30, 2025 · Fuel system, Suspension · GA

1. When accelerating, the entire car shudders intermittently but especially after letting off of the accelerator and then reapplying pressure to the accelerator. 2. The entire rear suspension makes popping and clicking noises constantly and seems to "bottom out" when going over the slightest bump or road imperfection. It causes the vehicle to bounce excessively potentially causing it to "fish tail". Discussed with dealer during early scheduled maintenance with little to no concern by them.

Filed Jul 6, 2022 · Electrical, Engine · FL

I was driving on a highway going approximately 80 mph when the car stopped accelerating. It was as if someone switched the car to neutral. The engine completely shut off and I had to scramble to safely pull over to the side of the highway. I had to turn the car off, wait, and turn it back on. I got back onto the highway and rushed towards a dealership. The engine shut down two more times. Each time requiring me to pull over to the side of an incredibly dangerous highway to restart the car. The dealership stated it was an issue with the Fuel Injector.