I got fuel smell coming out the water reservoir on a 2000 Jaguar style 4.0

Where would an injector be leaking too

Into the intake due to stuck open injector(s). Your fuel air ratio is not at stoichiometric meaning the right amount air and fuel mixture to execute a combustion. You have more fuel than air dumping into your intake. I recommend changing your injectors, mean the intake manifold gasket has to changed as well. I hope this clarifies some things. Thank you!

Thanks alot

NP