I recently bought toyota corolla gli model 2010
Im having some problems with the valves of the vehicle.I sometime feel as if the car is not picking up as it should though i know the car is underpowered but still , at times it seems as if the car is not performing as it should.
I showed it to a mechanic , he said this issue is with almost all corollas and he fixed it.There was some valve jamming problem, he fixed it without opening the head.
Can anyone suggest me as to how i should now check the performance.