229 TrueDelta members own (or used to own) a 2006 Hyundai Sonata. 12 of these members
(5.2%) have reported transmission repairs for their car.
A total of 13 transmission repairs to 2006 Hyundai Sonatas--an average of 0.1 per
vehicle--have been reported.
Tranny was making a whining noise in 4th gear and shifting early into 4th going up hills, resulting in loss of power. Dealer found nothing wrong. Symptoms remain unchanged. No faith in dealer any more.
CV joint had unpacked itself, slung all grease. Was making noise. Cleaned and regreased. No issues now. Independant shop looked at same problem and swore it was strut mounts. Dealer proved MUCH value in experience. Nailed it. Happy.
felt like rougher than normal shifting; could not replicate. Problem subsided and is no longer noticeable. Road test only... no charge.
noticed growling/rattling/grinding sound coming from engine compartment. got louder over a few weeks. took to the repair shop. they say transaxle will have to be removed and will cost at least $1000
noise from engine compartment got louder. after weeks of driving check engine light came on. flexplate rivets had loosened. dropped transmission to replace flexplate. there is a service bulletin on this.
I don't know the exact name of the part that failed, but it was some sort of acceleration pedal "link" that was faulty from the factory (or so the tech said). It caused the car to have 1/4 of its usual power and could not be driven faster than 30 mph.