Try using ail with a stop leak additve (high mileage oil)if you don't want to get under it. If that doesn't work you've got to find the leak(sometimes this is hard). It helps to clean the engine off first(Engine Brite Foaming Cleaner or the like). You can then try tightening the bolts around the part that is leaking. This may not work. You'll have to replace gaskets/reseal the mating parts.
Check the evaporative canister under the hood for raw fuel. It is that black can with vacuum and wires running to the top. Good answer above. If you fill the tank and smell it, but it goes away after the fuel level goes down, you could have a leak where the fill tube joins the tank. There could even be a leak in the tank itself. Ran across that one a few years ago in a 2001 Chevy Caprice...couldn't find the leak anywhere until the tank was removed, filled with water, then flexed...the leak was at the top of the tank.
We are going to need more info to help you with that one. Describe in more detail where the leak is coming from.
have system pressure tested to observe leak
Could be blowin by piston rings and burning up and out the exhaust.. if that's the case... blackish smoke will come out exhaust when revved
A faulty fuel pump will make a 1996 Chevy Tahoe hard to start after it sets for a few hours. The pump can allow fuel to leak back into the gas tank and starve the engine for fuel.
Check and tighten all fittings Check fuel lines and tank for signs of leak
a vac leak
An oil leak at the timing chain means that the seals are defective and must be replaced.
That usually means the engine is lean. Could be a vacuum leak.
BAD LIFTER, KNOCKING ROD (NOT GOOD)
A vacuum leak can do that. Check the gasket at the base of the throttle body for a vacuum leak.
The best way to fix an exhaust leak on a 1994 Caprice is to install new exhaust pipes where the leak is located. Exhaust leaks are dangerous and can cause carbon monoxide to build up in the passenger area of the vehicle.
Maybe : a crack in exhaust manifold that closes when hot.
you have a leak.... I had one too.3/4MDF of a subwoofer box expanded 2+x... almost 2" thick
if your 1987 Nissan pickup leak water from manifold what do we do
you have a fuel leak take it back to the shop
bad gas,timing off,valve sticking,carb. need adj.,faulty spark plug, vacuum leak,dist. cap or rotor crossed plugs,bad egr.,