Sonata I45 (LF 2015+) :: 2.0T Engine Losing Considerable Power On Freeway
Dec 2, 2015
On the freeway tonight the engine was felt like it was losing considerable power. When I pressed the gas it wouldn't push you into the seat like usual and it shuddered a little. As I was pushing the gas the engine light came on for a couple seconds then turned off. After I exited the freeway, I tried pushing the gas and it wouldn't accelerate. It also seemed like it was limiting itself to 60mph and 4-5k rpm, even when the gas was fully down (not past gate though, I was afraid I wouldn't be able to make it home if I did so). I stopped and turned the car off and on again and the problems seemed to have disappeared. Acceleration came back, car went over 60 and I was able to get it a little past red line with gas pedal past gate.
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On two occasions, about 18 months apart, my Hyundai Sonata started lurching down the freeway, losing power at approx. 3000rpm and regaining it at about 2500rpm. (I was traveling about 70mph.) The first time I was hauled home and the second time i tried to maintain speed and limped home 40 miles on Hwy 80W outside of Sacramento, CA. AAA mechanics reset computer both times and the first time replaced gasket on accelerator. The second time they reset computer but could not find what caused computer to malfunction.
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I have a 2015 Sonata 2.0T and I have noticed knocking noise when driving. I experience it more when on the highway/freeway. I mainly experience it during acceleration. Not hard acceleration but when I want to overtake or when the road curves and coming out of the curve -I step in the gas a bit, I hear the knock.
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Diagnosing our 2006 Hyundai Sonata.....2.4 L engine....automatic.
While cruising along, about 40mph and up I guess...when traveling at a steady throttle and engine speed... if you ever so slightly give it more gas, sometimes it will act as though it is losing power for a second and then kick back in.....but revs will stay up....
I was thinking either throttle position sensor or (gasp) transmission.....it doesn't really feel like a slipping tranny....but wondering if it is issues with the overdrive...
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If I said that I can "feel the road" in my gas pedal and steering, what this means (like every bump etc...). If so where would I start to look to try to fix this issue or how to lessen the feel. Also is there anyway to make the steering wheel more stiff it shakes while hitting a considerable speed.
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I pushed the accelerator all the way to the floor at 30 MPH and the engine lost almost all power? As soon as I let up to about 9/10 throttle everything reverted to normal. Took it to the dealer and it showed no codes. The Tech and I took it for a road test and it did it only one more time. He said to keep an eye on it but was baffled. I tested it later in the sport drive mode and it would bog down every time if pushed hard to floor at about 30mph.
My best guess is that I got some bad regular low octane gasoline and the ECM is sensing a knock and retarding the timing or cutting off fuel flow similar to over revving condition. I will fill it up with 93 Octane Premium next time I get fuel and se what happens. Usually runs fine on 87 Octane but most of the time I don't floorboard the accelerator pedal. As I said at 9/10 throttle it runs fine.
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A little over 18 months ago I noticed that my steering wheel seems to catch when I am making a slight turn such as on and off a freeway. It doesn't have the same issue when I am making hard right/left turns. I didn't worry about it until one day, two of my children in the car, the power steering failed completely as I was going over 50 mph on the off ramp to the freeway. I was able to control the car and avoid an accident and drove the car about 1 mile to the grocery store, which was my original destination.I went inside for about an hour and when I came out the car was fine. It has only had one other similar failure in 18 months but I commonly feel the catch of the steering wheel when I am exiting the freeway. What I mean by a catch is that it feels as though I would have to jerk the steering wheel to be able to turn more sharply because it has turned as far as it is able to go. I have taken it to 2 Mechanics including the dealership and neither can recreate my problem.
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After/during the rain, every other time my truck loses considerable power to accelerate. It's not consistent but happens increasingly often. As I accelerate up to ~ 50km/h (also when I reverse), my engine will shake the entire truck. Past 50 it "appears" to go away. Typically this will last up to 10 mins and will disappear and run fine again. The last time it happened the check engine light came on and went away the next day. After reading online, I've heard about the "COP" connection??
2003 Ford F-150, 4.6L Triton V8 XL, 2WD
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Filled up my power steering every 3 days this week. Finally climbed under the car and saw this. How difficult or expensive this will be to fix? Is it just replacing the rubber boot or is it more severe?
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I'm driving a 2006 4cyl LX Sonata. Just started past 3 months. Intermittently and usually after long freeway driving, the pwr steering locks-up as I come to a stop. Example is driving off the freeway via a ramp and stopping . Steering breaks loose if I apply pressure and goes back to normal. Fluid has been checked for level but not replaced.
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I was driving and got off the freeway exit ramp and while I was waiting to make a left turn, the car all of a sudden started sputtering (RPM's were low up and down on idle) and eventually died while waiting to make a left turn.
Turned on the engine again.. same sputtering occurred and had to gas it so it wouldn't turn off.. Finally got to the side of the road.. turned the car off checked the oil.. no issues.. engine temperature was fine.. no check engine light.
After about 30 min later, turned the car on and it seemed to be normal again so I carefully drove to the dealer and encountered no issues. Took the car to the dealer and they couldn't find anything.
I drive a 2015 Hyundai Sonata Limited with about 19k miles now.
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Truck started losing power then service engine light came on, drove about another mile then it just stalled ( almost home lees than a 1/4 mile). Got out open hood oil everywhere on top of motor. Looked under truck and oil all over the road. Looked back where I was driving a line of oil as far an I could see. Checked oil barely any on stick. Where should I start hpop or plug?
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Well, my MIL came on, and hasn't left (yes, my gas cap was tightened). My bigger concern is that when I'm on the highway, if I have to slow down for traffic, upon accelerating again, when I hit 108km/h, the car does a crazy death shudder, and slows down...I have to release the pedal, let it slow to around 95, and then I can accelerate again. I'm gunna wait and see if the light goes off after a couple of days, but this is worrying.
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Recently, my car (2015 Sonata GLS) has been making a long beep after shutting off the engine, similar to the beep you get if you exit the car and leave the smart key inside. The beep is outside the car, not inside. The beep happens immediately upon hitting the ignition button, before I even have a chance to open the door. There is no indication of anything on the LCD screen.
This is really annoying, especially when it happens in my driveway late at night because I'm sure the neighbors can hear that 5 second-long beep. What it means?
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Had driven about 3 miles, engine warmed up. Stopped at the store for about 5 minutes and cut motor off. I started engine, put in drive and after about 20 ft., the motor cut off. Luckily I was in a parking lot and coasted to a stop. Started up again and everything seemed ok. One thing I did notice was after the cutoff, all dash icons, (oil, brake, engine, etc) were on. I especially noticed the key icon, indicating key was not in car, was on. What happened? Is this something that I should have the dealer look at? I doubt they could ever replicate it.
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I pulled into my garage yesterday and when I tried to move the transmission into Park it would not move. I tried turning the engine off and nothing would allow the transmission selector to move. I thought I would have to push something into the transmission lock slot but the only thing I had that was close to being able to fit into the small slot was the key in the FOB but it would not fit. By pure chance I happen to push on the transmission selector to the right and it moved over and then I was able to push it forward into Park. I must have pushed the selector into the sport mode when I entered the garage.
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Eco model (1.6T/DCT). driven 17k miles.
My biggest concerns seem to be the DCT transmission. It's....rough to say the least. It jerks and makes terrible noises in parking lots, which can be quite embarrassing if someone else is in the car. Just today, someone said "is your car okay?" I understand that DCT's are different, but I have driven this car since brand new, and it was never this bad.
The car also seems to shift to a gear that is too high for the speed, making the engine vibrate and sound strained while cruising. This problem occurs around 1500 RPM with the gas pedal pressed and just driving along. I can easily reproduce the issue by putting the car in manual mode, selecting the highest gear possible and then trying to accelerate without hitting the kick-down on the accelerator.
I use synthetic oil from the dealer, changed the air filter already, did the fuel injector cleaner additive and also use ethanol free gas.
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I have a 2015 Sonata SE 2.4L with 15k miles. Sometimes when accelerating, and almost always when accelerating uphill, the vehicle makes a noise that I can best describe as sounding like a grumbling or rattle from the engine. It almost has a "diesel engine" sound to it. I have noticed this going back to when the vehicle was brand new, but I have recently noticed it more.
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I bought a pre-owned 2015 Sonata Limited in November. I only had less than two weeks before the car hesitated upon acceleration and the check engine light came on. At the time, I thought it was a loose gas cap as I'd just gassed up. I took it to the dealership, they pulled the code and it said to replace the accelerator pedal. That required a second trip to the dealership 2 weeks later when they completed the work. Two weeks later and the light came back on. I took it back and asked them to keep it until they found and fixed the root cause while I took a loaner. They kept the car about 2 weeks and when I picked it up, I found that no work had been completed. Two days (!!) later the light came back on.
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I'm on my second '15 Limited Turbo. Only have 2k miles, but I've noticed an issue with acceleration. When under hard acceleration, especially in 3rd or 4th gear, around 5k RPM the engine starts hesitating. It feels like it runs out of steam. This feeling lasts through beginning of next gear, then the car picks up again. It is actually faster when applying less throttle.
What it could be? It did it since new, I took it to the dealer once, but got some stupid response that it was just rev limiter kicking in (at 5k, right), unfortunately had no time to leave it with them again/show it to them. I also thought it might just go away on it's own, plus I don't usually drive it that hard anyway...
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I have a 2015 Somata ECO, while backing out of the drive the mailman came so I stopped (car running) closed the door went got the mail returned to the car and the doors automatically locked. This is not the first time this has happened, lucky I was at home and went inside to get the other key. What did I do wrong or how can i prevent this from happening again?
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