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Sportk3539

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First Kia, 2026 Sportage 1000 miles. Yesterday got into new auto and pressed auto start. Seemed that the car cranked for a longer period of time before starting. Then drove three blocks to highway. Getting on highway seemed like when pressing on accelerator engine no increase in power. Car was weak. I didn't know if it was a transmission or engine problem. Exited highway and then put six gallons of regular gas into tank. This seemed to fix the problem. Thought maybe condensation in tank causing water in gas. Car had about 1/4 tank of gas when this occurred. I drove the next 75 miles without any problem. However, as this is a new vehicle am very perplexed about this. Has anyone else ever had this problem. No warning (Idiot) lights lit up on dashboard. Onboard diagnostic indicates all systems ok.
 
Sportk3539 said:
First Kia, 2026 Sportage 1000 miles. Yesterday got into new auto and pressed auto start. Seemed that the car cranked for a longer period of time before starting. Then drove three blocks to highway. Getting on highway seemed like when pressing on accelerator engine no increase in power. Car was weak. I didn't know if it was a transmission or engine problem. Exited highway and then put six gallons of regular gas into tank. This seemed to fix the problem. Thought maybe condensation in tank causing water in gas. Car had about 1/4 tank of gas when this occurred. I drove the next 75 miles without any problem. However, as this is a new vehicle am very perplexed about this. Has anyone else ever had this problem. No warning (Idiot) lights lit up on dashboard. Onboard diagnostic indicates all systems ok.
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Congratulations on your new 2026 Kia Sportage! That's a great vehicle. I can understand why you're perplexed by this. It's not normal for a brand new car to behave like that, and it's frustrating when you don't get any warning lights. You're not the only one to have this kind of problem. While it's not a widespread issue, it can happen. The fact that the car cranked longer and had a lack of power is a strong indicator of a fuel issue. Your theory about water in the gas is a very good one. The fuel system in modern cars is very sensitive to contaminants, and even a small amount of water in the fuel can cause a lot of problems.

The longer crank time is a sign that the engine is not getting the correct air/fuel mixture, and the lack of power is a sign that the engine is not getting enough fuel. The fact that it went away after you put more gas in the tank is a huge clue. A few other things could have caused this. It could have been an intermittent software glitch in the engine's computer. It could have also been a bad sensor, like a fuel pressure sensor, that was not working correctly. However, the fact that you didn't get a warning light or a code makes it less likely. An intermittent problem can be too short for the computer to register a fault.

My best advice is to just monitor the situation. Keep the gas tank full for a while, and see if the problem comes back. If it does, you should take it to a dealership immediately. Since it's a brand new car, you should not be having these kinds of problems, and it would be a good idea to have it looked at.
 
Victor Rusk said:
Congratulations on your new 2026 Kia Sportage! That's a great vehicle. I can understand why you're perplexed by this. It's not normal for a brand new car to behave like that, and it's frustrating when you don't get any warning lights. You're not the only one to have this kind of problem. While it's not a widespread issue, it can happen. The fact that the car cranked longer and had a lack of power is a strong indicator of a fuel issue. Your theory about water in the gas is a very good one. The fuel system in modern cars is very sensitive to contaminants, and even a small amount of water in the fuel can cause a lot of problems.

The longer crank time is a sign that the engine is not getting the correct air/fuel mixture, and the lack of power is a sign that the engine is not getting enough fuel. The fact that it went away after you put more gas in the tank is a huge clue. A few other things could have caused this. It could have been an intermittent software glitch in the engine's computer. It could have also been a bad sensor, like a fuel pressure sensor, that was not working correctly. However, the fact that you didn't get a warning light or a code makes it less likely. An intermittent problem can be too short for the computer to register a fault.

My best advice is to just monitor the situation. Keep the gas tank full for a while, and see if the problem comes back. If it does, you should take it to a dealership immediately. Since it's a brand new car, you should not be having these kinds of problems, and it would be a good idea to have it looked at.
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Thanks for the info
 
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