[bradinohio]

LOL - yep - I didn't say anything derogatory against them - just outlined a timeline of events as they occurred and have the service records and a voicemail to back it up. Just giving my own opinion and a warning based on my experiences. For sure, there will always be differing experiences by others.

As a side note - I'm going to a different dealership tomorrow to explain what has happened up to this point and make an appointment for a second opinion.

 

[jaimi]

Sorry folks - definitely not meaning any offense to anyone at all, mainly just venting and frustration. I obviously liked the Santa Cruz but I will continue to say this first impression of owning a Hyundai is leaving a very poor taste in my mouth. I only brought up Mustangs due to my own experiences. I know they can have issues as well but for example my very first one years ago was a new 1996 and I drove it up to 130K with no issues. My last new Mustang purchase (which I still own) was a 2013 that now has almost 90K with no issues. And yes it could be the dealership that I chose in my area to do the repairs. Time will tell on that I suppose.
With that said - I got the truck back yesterday so I guess it will be a matter of putting some miles on it and play the wait and see.

Again - here is an overview for those interested:

The last few months I had noticed a few times where I would start the truck and it would idle rough with the engine light on. I would stop and restart and it would be fine and the engine light would be off. No codes.

Around March 25th it started rough and this time the engine light would not go off. Code P0301 - misfire cylinder 1.
Dealership performed diagnostics and replaced ignition coil on cylinder 1.

Around April 19th (and 100 miles later) truck started rough again with engine light that would not go off - same code as before)
Dealership performed diagnostics and said they were getting misfires on cylinders 2 thru 4 but not cylinder 1.
So their course of action was to go ahead and replace ignition coil on the remaining 3 cylinders.

I'm new here, and if this isn't welcome, I apologize. I had this same issue on a MINI - in the end, it turned out to be the battery. BMW can go a bit crazy when voltage is low. And the battery tested good at Autozone. Replaced it and had no problems since.

 

[bradinohio]

Well folks - you just can't make this stuff up!
Been a bit since I posted an update - after 4 instances of the P0301 code and 5 visits across 2 dealerships - the second dealership came through for me.
I dropped the truck off late Monday afternoon this last week and got the update that they were replacing the high pressure and low pressure fuel injector components on cylinder 1. (not sure I got that terminology correct but it was something like that). One of the parts needed to be ordered so it would take a couple of days to complete.
Well, I got another phone call update just yesterday. Apparently while test driving the fuel injector fix the transmission experienced failure! (code P1C2D03).
They received approval from Hyundai and I will now be getting a new transmission as well. Good grief! So, with the holiday weekend, it will probably be not until at least mid-week of the upcoming week before I get it back.
The build date on my truck was in April 2022 so it was always in the back of my mind that a DCT failure could occur. But wow, what timing.

 

[johnsonr88]

Thank you for posting this. I fear I may having the same experience as you. Same initial symptoms and diagnoses. Replaced a fuel injector. 100 miles later, more codes and rough idling. Bringing back in to dealer. They can't see me for 1 month, hoping they can provide a courtesy vehicle. 1 month without a car, when it's a Hyundai warranty issue is not fun.

 

[Ellie's Dad]

Well folks - you just can't make this stuff up!
Been a bit since I posted an update - after 4 instances of the P0301 code and 5 visits across 2 dealerships - the second dealership came through for me.
I dropped the truck off late Monday afternoon this last week and got the update that they were replacing the high pressure and low pressure fuel injector components on cylinder 1. (not sure I got that terminology correct but it was something like that). One of the parts needed to be ordered so it would take a couple of days to complete.
Well, I got another phone call update just yesterday. Apparently while test driving the fuel injector fix the transmission experienced failure! (code P1C2D03).
They received approval from Hyundai and I will now be getting a new transmission as well. Good grief! So, with the holiday weekend, it will probably be not until at least mid-week of the upcoming week before I get it back.
The build date on my truck was in April 2022 so it was always in the back of my mind that a DCT failure could occur. But wow, what timing.

Just wow. Glad though to hear your vehicle seems to be on the mend. While it may not have been a whole lot of fun, you now have a primary education on how dealer service departments work ( or not work in many cases ). My stomach turns and churns every time I enter one, which is not at all if I have other DIY alternatives. It is not that they wake up thinking how do I mess over my customers rather, it is just simply corporate America. No one really gives a cr*p anymore.

 

[Sock]

Saw a few other discussions upon searching the word 'misfire' in the forums.
Thought I would share the experience that I'm going through right now.

Over the last several weeks there were a few times where I would start the truck and it would idle rough and the engine light would be displayed. I would turn it off and immediately back on and it would be smooth as normal and the engine light would be off. Well, a few days ago it happened again but this time the engine light would not go off and it also sent a code to my app this time. After a couple of hours at the dealership today it was diagnosed with a bad ignition coil on cylinder 1. They sent me home with a loaner and said the part should hopefully arrive tomorrow afternoon. I've had this truck since May 2022 and 15,500 miles and this is the first issue that I've encountered. Yes, this is warranty work, but even so, with mileage this low it makes me now wonder what is next and can I even trust it going forward for long road trips. I also have a 2013 Mustang that I purchased new in July 2012 and it has almost 90K on it and I've never had to do anything other than normal maintenance. I'm frustrated for sure!

I had the same problem 2 weeks ago. Started truck idle rough, I shut it off & restarted engine light stayed on. I drove right to the dealership it ran fine. Dealer showed misfire cylinder 3. The coil was replaced. I bought a code reader & today it did the same thing. I plugged my reader in & now it's cylinder 4. 27,000 miles, still under warranty. Until January. Not happy with this truck. Had fuel door fail, key fob fail, recalls. I'm hoping this will be resolved.

 

[SquidKing7]

I had the same problem 2 weeks ago. Started truck idle rough, I shut it off & restarted engine light stayed on. I drove right to the dealership it ran fine. Dealer showed misfire cylinder 3. The coil was replaced. I bought a code reader & today it did the same thing. I plugged my reader in & now it's cylinder 4. 27,000 miles, still under warranty. Until January. Not happy with this truck. Had fuel door fail, key fob fail, recalls. I'm hoping this will be resolved.

@Sock I had the same exact issue as you on my 2022 Santa Cruz Limited, about 30K miles. For me, it was the fuel injectors. Nightmare story included: https://www.santacruzforums.com/posts/278750/

 

[SquidKing7]

Sorry folks - definitely not meaning any offense to anyone at all, mainly just venting and frustration. I obviously liked the Santa Cruz but I will continue to say this first impression of owning a Hyundai is leaving a very poor taste in my mouth. I only brought up Mustangs due to my own experiences. I know they can have issues as well but for example my very first one years ago was a new 1996 and I drove it up to 130K with no issues. My last new Mustang purchase (which I still own) was a 2013 that now has almost 90K with no issues. And yes it could be the dealership that I chose in my area to do the repairs. Time will tell on that I suppose.
With that said - I got the truck back yesterday so I guess it will be a matter of putting some miles on it and play the wait and see.

Again - here is an overview for those interested:

The last few months I had noticed a few times where I would start the truck and it would idle rough with the engine light on. I would stop and restart and it would be fine and the engine light would be off. No codes.

Around March 25th it started rough and this time the engine light would not go off. Code P0301 - misfire cylinder 1.
Dealership performed diagnostics and replaced ignition coil on cylinder 1.

Around April 19th (and 100 miles later) truck started rough again with engine light that would not go off - same code as before)
Dealership performed diagnostics and said they were getting misfires on cylinders 2 thru 4 but not cylinder 1.
So their course of action was to go ahead and replace ignition coil on the remaining 3 cylinders.

@bradinohio I had the same exact issue as you on my 2022 Santa Cruz Limited. For me, it was the fuel injectors. My nightmare story is included here: https://www.santacruzforums.com/posts/278750/

 

[cynot]

Well, this nightmare started for me 2 weeks ago. Exact same symptoms. The first diagnosis was bad gas and not under warranty. My choices were fuel additive and clear the code for $235 or drain the entire full tank and flush for $996. I opted for the cheaper route. The code came back in 2 days. I added another bottle of octane boost to the remaining half tank and cleared the code. I ran the tank empty, added yet another bottle of actane boost and filled up with fresh fuel. It ran fine for another 2 days and the code came back. Back at the dealership this morning and they just called to inform me that they've ordered a new injector for the #1 cylinder. There is also a TSB on this issue but they said that my 2023 did not fall under it. Fingers crossed! I'll post an update after a couple weeks of code free driving.