I have a 1999 Accord EX with 190k.

I recently replaced the head, throttle body, all gaskets, alternator, radiator, spark plugs and wires, water pump, hoses, and a couple other things.

Car is running great except a little vibration from one of the motor mounts, which will be replaced soon.


Problem I'm having is with the transmission shifting from 3rd to 4th... If I accelerate any faster than normal shifting 3-4 will about half the time the rpm go up and down fast between 3.5-4k rpm and sounds like a wah wawawawawa sound until you let go of the gas and let it shift without Pressing any gas.

Any ideas? Thanks a lot!