u/BigBadWolf193

Hey there Guys!! So my engine rev keeps going up and down and until the engine stalls, This keeps happening after i drive my car on the road and when i clutch, the engine stalls on me while the car is still moving. Even when I'm idling, it still happens like in this video. This problem disappears when i turn off the car for a long while maybe like 2-3 hours and to reappear again when i drive. Any idea what is wrong with it?? I drive a Kia rio 2012 Manual.