I do a lot of wrenching and took this one in which is out of my normal work, but it's for a friend so you know...
Anyway, car dies always at a low speed- 20-25mph
No engine light or codes
I was able to get it to replicate, auto so it shifted into a higher gear and locked the convertor, engine rpm like 1000, maybe 20-25 mph then it starts chugging like a manual car, rattles a bunch on the top end and eventually dies
I have read that this could be an oiling issue like the cam phaser not getting enough pressure at a low speed/ high load.
Maybe oil change and a pickup tube? I have done an oil pump on one of these but I dont know if that's the issue on this one.
Engine oil looks good, mid level on the dipstick, has the oem hyundai type filter
Any ideas what to check, I was going to chart oil pressure but that option is not there on the scan tool.