Q&A

Recently I let my vehicle sit for atleast two months after replacing BCM. So I finally replace my transmission filter but now I hear a tapping sound coming from the engine. I have replaced spark plugs and change the oil using synthetic oil also. Now temperature stays at normal level. When I put the vehicle into reverse it tends to jerk. Once I put the vehicle into drive it begins to drive but acts as if its missing until I get into higher speed and runs fine until I slow down. Also I my check engine light flashes on and off.