1997 Dodge Stratus Vibration on the Brake Pedal

check tranny and motor mount
check for a tune up
check for vacuum leaks

Will be easy to replace it by myself? do i need to go to a mechanic? and how many does it have ?

what did you find ?

So let me see how to explain myself the vibration in the brake pedal was the little plastic that goes inside the PCV HOSE! :O yea cause i change it ( THE HOSE) and i forgot to put that little plastic that goes in the engine side of the hose :P and i found it today and BAMB!! its working like a charm today :D i hope this work for future diagnostics thanks for the help will ask again here for sure.

That was the vacuum leak
good job you found it
happy driving

Thanks ! but!! now i have an error 12 21 55 ( CHECK ENGINE ) and i dont know if its because of that maybe the hose its to FAT , i guess ill have to go to the dealer to purchase the Real one but if u guys know something please let me know thanks....

P codes will identify the troubled area but I think code 21 is a downstream o2 sensor you may need to check it check fuses and wires
replace o2 sensor
code 12 beginning and 55 ending of codes
good luck
jack