Join Date: Feb 2017
Location: East TN Sevier County is Near Knoxville
Discussed this surging, jerking, etc. with my son who recently bought a Sonata and has been on that FORUM. He got a buy on a slightly used 2016 from a dealer (I think like $24,000 - list is like $37,000 on new one like his top of line model full moon roof, etc.). I COULD BE OFF ON THOSE NUMBERS, going from memory.
On the Sonata FORUM - There is talk about an extra Charcoal Filter (along with the paper air filter) and removing that helped with acceleration and smooth operation.
He sent this:
On the hyundai the second air filter is inside the cover you remove to get to bigger main one. It is charcoal pre filter for possibly capturing oil particles from crankcase before they hit the paper filter. Everyone on Sonata forum says better acceleration and no jerkiness.
Last edited by PAULRIDES; 08-12-2017 at 08:58 AM.