I wonder if anyone can help me here. My Sonata year 2000, has a frustrating problem in that the car will drive for some time (a few days) then suddenly it will shudder and the revs go up. At that point the auto trans is stuck in 3rd, heavy acceleration will not cause it to go to 2nd or 1st, and it will never go into 4th. If you stop and restart the car is fine for a while again.
Car is going into the dealer on Monday to have the codes read from the computer. The engine warning indicator never lights up.
Has anyone else had this, and what did they diagnose the problem as? Is it likely to be serious, the car drives very nicely until it happens. Wondering if this is something that happens and whether there is often a simple explanation which can be fixed quickly.
Any help will be welcome, I will tell you the outcome after the dealer has looked at it on Monday.
It has to start happening when my folks are about to embark on a visit from the UK to Australia for 3 weeks doesn't it?
Have a good weekend.