Any fuel leak is bad!!Hey I have an 02 dodge cummins automatic...There is fuel leaking on the front driver side of my truck..Im guessing it the breather bottle..well thats what people have been telling me..But the thing is..how big of a deal is this because I am suppose to go on a trip but I dont know if I have time to fix this before I go? Thanks
Most likely it is the fuel filter canister drain leaking. If yo have fuel coming out of the breather bottle, you have catastrophic failure type issues.
I would recommend getting rid of that breather bottle too. All it's good for is coating the radiator with oil and grime.