i have never dealt with the early 94 trucks but my neighbor has one and said he had some fuel leaking out. i looked around and i located it to the fuel filter canister. it seems that on the bottom of the canister there is a purge valve and i believe it is leaking from there, i havent pulled it off yet due to time constraints but just looking for any tips or past probs that people may have had with this. thanks in advance. josh