Yesterday my car started doing this:

If I am at a standstill, and put my car into drive and accelerate at a normal rate, I will here a "KNOCK KNOCK KNOCK" sound and my car vibrates a bit, it sounds like the gears are having problems... after that short moment, my car will be ok until it shifts itself into 2nd, in which case if I am accelerating while the car is shifting, it makes the same sound. It also makes a small clicking noise if I shift from R to D or vise versa while parked...

After this had been going on for an hour or so my check engine light came on...

Does anyone know what might be causing this?? If its a tranny problem why is my check engine light on??

Thanks for any help

 

1) https://honda-tech.com/zerothread?id=682412

and get back to us with what the CEL code is.

2) Drain and fill with fresh ATF and get back to us.