Can fuel injectors cause a vacuum leak?
Can fuel injectors cause a vacuum leak? Common leak paths include the carburetor and throttle body gaskets, carburetor insulator spacers, intake manifold gaskets, and of course, any of the engine's vacuum fittings, hoses and accessories. It is even possible that leaky O-rings around the fuel injectors are allowing air to leak past the seals. What does it mean when your fuel injector is leaking? Leaking fuel injectors can cause Oil Thinning At engine shutdown the fuel pressure should maintain operating pressure or just below that for a substantial period of time. Fuel injector pintle, ball or disc seat leaks as...