gas smell when i turn on heater on 1994 Mercury Villager

i get a gas smell when i turn heater on inside of van

Asked by for the 1994 Mercury Villager
ck injectors for leaks and fuel lines
1 more answer
The exhaust manifold is probably loose on the engine mount. Need to put in new seals. When the vehicle is still cold, it does not burn all of the fuel right away and so some gasoline fumes are passing through the exhaust and leaking in the engine compartment.