Hyundai Alcazar transmission issue at 10000km: Unable to find its cause

The problem is, it is not consistently reproducible yet. Also, there is no check engine light or any errors on the console

BHPian Naetik30 recently shared this with other enthusiasts.

So, 1st of September I completed 4 months of ownership and the 10,000 km service was coming up. I was also worried about the juddering from the transmission I experienced a couple of times in the last week of August. So took the car in for the service to Lakshmi Hyundai service at Whitefield. I informed Mr Chetan (Marketing) about the juddering issue a day back.

Was received by Mr Johnson (service manager). He had already got an update from Mr Chetan and I should say the support from Mr Johnson was exemplary. I am extremely impressed with the level of attention to detail at this place. I stay in Bannerghatta road and it is not easy to come down here for the service. But if the support and service remain the same, I will not mind making the trip for service to this place.

I explained the juddering to be the main issue I am there to fix. Also, told them not to do the dry wash. He already knew from Mr Chetan that I wanted the car spotless and clean. Took him out on a longish test drive to show the juddering. Our thought was it could be the air filter or fuel injectors, etc. They needed the car for a couple of days to root the cause. No error codes on the OBD meant it wouldn't be easy to diagnose.

From the Hyundai app, I could monitor that he was taking the car out for test drives a few times onto a highway. He also kept me posted on the same. Cause every time the car leaves the service station I wanted to know why and what for.

Two days later they handed over the car. Went for a test drive for 30+ km and no juddering. The only change was the air filter + regular service. I have driven 250 km since the service and nothing noticed yet. So hoping the issue is resolved.

Also, checked the DPF soot load and it was at 15%, the last time I checked it was at 87% and so the engine is able to handle and burn up the soot during the highway drives. My fingers are crossed on that as well.

Otherwise, very happy with the car.

Update:

As luck would have it - within 24 hours of my last post mentioning, that no juddering was observed, it came right back. Not happy at all.

On Sep 8 morning as I was driving into the office, the juddering restarted again. This was at about 65 kmph / 1800 rpm on the inner ring road. This time the juddering was bad and it went away after I braked and accelerated again.

Again in the evening and the next day morning, I observed the juddering for a few seconds. The problem is, it is not consistently reproducible yet. But for every hour of driving, it occurs once or twice and lasts for less than 5 seconds or so. There is no check engine light or any errors on the console.

My doubts are strongly on:

1. Fuel injectors
2. Clutch
3. Transmission
4. TCM and related sensors.
5. Engine mounts (less probability)

I called up Mr Johnson from Lakshmi Hyundai yesterday and updated him about it. He was supportive as usual. So that is a good thing. I asked him to inform Hyundai and get a list of items they are willing to check. I will have to leave the car with them for a couple of days. Told him will only leave it when I know they have a clear plan on what to check.

So, planning to leave the car with them on Monday and hope this time, the real issue would be resolved.

This issue is starting to ruin otherwise excellent ownership.

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