I have Sonata 99 GLS (V6) and recently replaced cam shaft sensor at a
Hyundai-dealer in Cleveland.
I am having a strange thing. It does not happen all the times.
Sometimes, the engine revs up all of sudden (about 200 rpm more) and
the increased RPM does not settle down.
When this happens, the car kicks back right before stopping. It's like
a hiccup or slamming brake pedal hard (of course I didn't slam the
The only way to make it go is to turn the engine off. On restarting
the engine, the car runs good.
I've made appointment with the service as they have warranty back up on
However, I want to know what is really going on here.
Is the newly installed cam shaft sensor mal-functioning?
I have replaced the timing belt about six months ago. If the timing
belt is off by a tooth or two and causing this problem, it should
happen all the times, I guess.
Any suggestions or explanations on this issue is highly appreciated. I
want to fix this problem.