my 2006 srx has been having problems accelerating.Took it to dealership and they told me to replace my coils. so i did. replaced them all. still have the same issue. the best way i can describe the problem is when driving is feels like i am driving a stick shift, jerking. when attempting to accelerate it also jerks. can anyone help me with this issue. dealership is not helping just randomly telling me things that are not fixing the problem. new coils almost 400.