Sonata I45 (YF - 2011+) :: Faint Knocking Noise When In Reverse

I have a 2011 Sonata. Recently, I have heard a faint knocking sound when I'm in reverse. It doesn't do it all the time. When I took it into the dealer, it would not make the sound while there. What causes that sound?

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Sonata I45 (YF - 2011+) :: Transmission - Valve Knocking Noise From Engine Zone

I have a 2011 Sonata GLS with 127k miles on it and I'm trying to diagnose a problem, possibly with transmission.

Since I bought the car at 115k miles I started hearing a noise from engine zone, which appears quite rarely. Noise resembles valve knocking, appears mostly at traffic lights and colder weather (evenings). I was trying to catch the sound by recording it while using emergency brake at D pos. but the sound disappeared right after releasing brake pedal.

Describing in a different way it sounds like a propeller touching something with its blades. The sound also appears at 1900rpm on any gear (mostly when slightly releasing gas pedal around 2k rpm).

While trying to understand/fix the issue I used:

- liqui moly valve cleaner and engine flush
- techtron injection cleaner
- replaced spark plugs

These operations had almost 0 effect on car behavior. The symptoms boil down to a torque converter. Transmission shifts fine, I was going to try transmission fluid change ( a full change by dealer), however it may do more harm, so I'm not sure yet.

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Sonata I45 (YF - 2011+) :: Stalling When Putting Car In Reverse / Loose Knocking Noise

I drive a 2011 Hyundai Sonata GLS and it has about 84,000 miles on it. Sometimes in the morning the car will not start and I have to start it in reverse... Often times the check engine light will come on and stay on and other times it will go out. Sometimes when I am putting the car in reverse it stalls out... Then there is this horrible loose knocking noise that I think it coming from the steering wheel... Is this car about to put me down?

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Sonata I45 (YF - 2011+) :: 2013 Steering Column Rattle Noise

When going down the road I notice a rattle noise coming from the steering column area. I took it to the dealer a week or so after noticing it. I purchased the car brand new and like I said I took it to the dealer a week after purchasing it and they said they could not find anything and said they zip tied the brake lines or some bs hoping that would solve my problem.

It is now kind of obvious and I am going to take it back in to another dealership that has a better reputation.

I took a video last night so you can hear the noise I am talking about.

2013 Hyundai Sonata steering column rattle - YouTube

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Sonata I45 (YF - 2011+) :: Startup Rattle Noise Quits After 2 - 3 Seconds

My 2011 sonata rattles when starting. It sounds like noisy lifters and quits after 2-3 seconds. It does not do it on the first start-up of the day, but on subsequent starts when the engine is warm.

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Sonata I45 (YF - 2011+) :: GLS Shifts Hard - Knocking / Creaking Noise On Front Passenger Side

I got my Sonata at 27k, its now at 76k and the cars been great although I had the following issues.

I've noticed sometimes when I startup and shift into reverse the car jerks a bit and its not a smooth transition. However other times the car is very fluid in switching gears. Should I take it in to have a look at it?

Also when I am turning onto a unleveled road (usually a higher road), I notice a creaking/knocking noise coming from the front of the car, also notice it when I reverse into a parking space sometimes.

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Sonata I45 (YF - 2011+) :: GLS Exhaust Loud Metallic Noise (buzz / Rattle)

Just purchased a pristine 2011 GLS with very low mileage. The car is essentially mint (garaged + well cared for by previous owner), but has one, occasionally noticeable issue: once warmed up, a very loud metallic buzz/rattle noise is heard from the rear of the car, particularly under low RPM acceleration. I've had many cars in the past with similar noises, which all turned out to be loose heat-shields at various locations along the exhaust systems. With this in mind, I've felt all the heat-shields on my "new" car, and they all seem to be securely in place - though some (especially the rear one over the muffler) seem to be minimally supported by design, and could potentially be resonating with certain exhaust frequencies.

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Sonata I45 (YF - 2011+) :: Glove Box Locked After Removing Hinge Pins At The Bottom

At first it looked like the right side was OK but now after removing the hinge pins at the bottom (and putting them back on), the glove box appears locke but it's not. I can't see how it comes apart. I know it shouldn't be easy but I have stuff in there I need.

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Prius (2010-12) :: Rattle Noise Coming Around The Glove Boxes

58,000 miles. Slight "rattle" - very low noise level -coming from area around the glove boxes, or passenger front door, or from outside the car..

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Sonata NF (2006-10) :: Popping Noise When Reversing Into Parking Spot

I've been hearing a popping noise occasional when reversing into a parking spot for about a year no, its like 3-8 pops each time. I looked at the CV joints and the rubber hosing is intact. I am pretty sure this particular noise now is not ball joints squeaking.

How long can I let this slide without replacing. Is the CV joint sold as one whole piece?

BTW I'm checking out the 2013 Sante-Fe....

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Sonata I45 (YF - 2011+) :: Engine Knocking During Driving The Car

I have sonata GDi model 2012 ..the engine is always knocking during driving the car ..I changed the spark plugs, Fuel pump, cleaned throttle as well..some of my friends said it could be about octane range (IKA) but I put it a high quality of gasoline ( premium) and still knocking. There's one thing I haven't checked yet ,is ( injector nozzle) ..

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Sonata I45 (YF - 2011+) :: Knocking When Turn The Wheel

Noticed while standing still there is a knocking when I turn the wheel. Also hear a know when driving and I hit bumps. mostly noticeable when going slow.

I'm at 104,000 kms and my mechanic says the rack and pinion is toast. I've never had to replace this on any car.

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Sonata I45 (YF - 2011+) :: Knocking / Shudder While Accelerate From Cruising?

I just had my 15000 check-up for Sonata 2011 a week ago, everything went fine. The issue I am currently having is that I notice that when I drive on the freeway, after cruising for a distance and then stepping on accelerator to speed up, there is occasionally a knocking or shudder that occurs initially and then goes away. This seems to be reproducible if I accelerate, then let the car cruise, then accelerate again. But it does not happen every single time. I haven't noticed it too much on city streets.

My question is what may be causing it. If I were to take it back to the dealer, how much will I be charged for the inspection and if they were to find nothing wrong. Additionally, should I take it to the same dealer (which is about 20mi away), or a closer one?

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Sonata I45 (YF - 2011+) :: Repetitive Knocking Sound From Engine

I've got a 2011 Sonata GLS with 83k on it.

Last night I was driving and started to hear a repetitive knocking sound. Stopped to determine if it was only when moving but it continued in park.

Checked the oil and apparently there was very little of it.

Don't know how I screwed that up but the mechanic heard the engine for 1 second and said I need a full engine replacement.

So, yeah I am ticked off and need to take care of it.

The VIN qualifies for a replacement under the recall but I don't know how the dealership will feel about the present engine condition.

If that's not an option, where do I even begin to look for a replacement?

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Sonata I45 (YF - 2011+) :: Knocking In The Steering Gear Column

I bought a 2011 Sonata (GLS 4dr Sedan with the 2.4L 198hp engine). Till now i got a lot of issuses like the knocking in the steering gear column etc but i fixed all by myself. Now i am looking for a new or used but in a good condition oem exhaust. Because always I am revving really light from 1000rpm to 15000rpm I am hearing a loud rattling sound. Like something in the exhaust is not fixed and is vibrating out of that thing.

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Sonata I45 (YF - 2011+) :: Faint Knocking From Engine When Accelerate

I notice some faint knocking from the engine when I accelerate. I notice this symptom during summer months.

What to do? 2012 2.4l engine ...

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Sonata I45 (YF - 2011+) :: Rattle When Accelerate Around 2k RPM

I picked up my 2012 limited Turbo last night but noticed there's a rattle of some sort when I accelerate around 2k rpm, it kind of sounds like a bunch of metals being shaken up. Is this normal? I am also trying to test for the left/right pull, but with all the bad roads here in the city its getting kinda tough.

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Sonata I45 (YF - 2011+) :: Loud Knocking Noises And Power Loss

My car shifted wrong (i don't know how since it is automatic) and heard a loud knocking noises and lost power and then she shut down and turned off. called Hyundai assurance and they towed it to the nearest dealership since my dealership is an hour and a half away from my school. I don't know how this happened. I tried to crank it back up. heard a loud squeal maybe water pump? and she turns on but the rpms wouldn't go past 500 rpms well there she goes.

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Sonata I45 (YF - 2011+) :: Hesitation And Valve Rattle When Going About 60 Mph

I just purchased my 2012 Sonata GLS about 2 weeks ago and had 64,000 miles on it. Put a few hundred miles on it around town without issue and then head out on a road trip and put about 750 miles on it when I had the issue. I was going about 60 mph and went to pass a semi and when I stepped on it the car started lurching, crazy valve rattle, and seemed to lose a lot of power. Got back behind the semi and babied it until I found a place to pull over and check it out. It was 2 quarts low on oil so I topped it off and it sounded fine, running smooth and no ticking or anything. Drove it around a bit and everything seemed fine and eventually got back on the highway and running fine. Pulled over after 100 miles and another 1/2 quart low, topped off.

Another 100 miles and another 1/2 quart, but running great with no issues. 150 miles from home and it happens again when I try to pass with the rattling valves and loss of power and I have to limp it to a gas station and now hearing the valve rattle and chugging on just a slight incline and going 20 mph. Get it towed 150 miles back to the Honda dealer where i purchased it from (long story) and their tech drove it and said he thought it needed a new motor since he barely made it back to the shop. They send it over to my local Hyundai dealer, and all of the sudden it is running great again! I go and drive with the tech and hammering on the throttle and it's running like a champ. I left it for him to drive home and they put 98 miles on it without issue. I picked it up yesterday and they said to bring it back if it happens again, but totally stumped as what it could be. They did start the oil consumption test so I will update when that is done.

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