I have a small fuel leak, how do I replace the o rings on injectors? on 1991 Cadillac DeVille

Smell gas but can't see any leak, nechanic told me needed to replace fuel injectors, but I think new o rings would do the trick. What is the vacuum hose possibility?

Asked by for the 1991 Cadillac DeVille
1 answer
why dont you believe your mechanic?? it is common for them to leak and need to be replaced.

vacuum hose, no.

what motor do you have??