Hello everyone,
I have posted a question a couple of days ago about a used hyundai accent diesel that I've bought recently. Anyhow, that problem was solved and turned out to be nothing. Yesterday however, while I was using the car in bumper to bumper traffic in a huge congestion, the car started jerking really hard everytime I lift my foot of the brake. Even when I dont press the accelerator pedal the car tended to jerk and shudder a little bit. The jerks and shudders kept getting worse throughout the whole traffic jam which lasted 1 hour. After that I went directly to the mechanic where he tried it for a bit while it was doing that and said that it probably needs a new flywheel and a new clutch. He said however that he cant be so sure since transmission problems only show in driving and not in ant computer test since no codes where showing in the diagnostics test. Today however I drove the car for 150 miles in a combination of bumper to bumper traffic and large open highways, and the transmission literally showed no problem. It felt like all the problems just disappeared. What do you guys think? Im thinking about talking to the previous owner and negotiating returning the car back to him if he accepts obviously. The car is a 2017 diesel hyundai accent 7 speed dual clutch automatic (DCT) transmission.
This transmission is known to be sensitive, anyone experienced something like that and it just disappeared after the car rested and cooled down?
It was probably a blocked fluid passage that flushed itself out. When was your last fluid and filter change?
Well since i bought the car used 3 days ago, I don't really know when it was changed. In fact from the look of it, it doesn't seem like it has ever been changed. The car has 68,000 miles. I read in the user manual that oil fluid change should be done at 72,000 miles. Car kinda feels like a manual when driven, which is normal i guess for a DCT. But the jerking thing seemed really bad and odd, it disappeared however.
My personal rule is to take the manufacturer's recommendation and divide by two. Oil and filter, transmission, differentials, everything.