NO IT CANT CAUSE A VAC. LEAK. BUT IF ITS A MEC.FUEL PUMP I HAD THE SAME PROB WITH MY 305. I CANGED THE PUMP AND SOLVED THE PROB.
What happens depends greatly on which module fails. If the engine control module (computer) fails it may cause the engine to run poorly or not at all. If the ignition module fails the engine won't start.
It can make the engine run so poorly that it seems like the transmission has problems.It can make the engine run so poorly that it seems like the transmission has problems.
The required fuel pressure varies from year, make, model and engine size. An example would be, a 2000 Chevrolet Blazer with the 4.3L engine would require 60 to 66 psi for the fuel system to operate correctly. Any more or less than that the engine would run poorly if at all.
Makes it hard to start and run poorly.
The engine will turn over , but either run poorly or not at all
Poorly designed and manufactured foreign junk!
The engine could stall when you are on the road, causing a traffic problem.
yes it has to do with timing
The engine would be running poorly and the check engine light should be illuminated with related codes.
The catalytic converter
Either it will not run at all, or run very poorly. Either is likely to do severe damage to the engine.
A small amount of water, engine will idle poorly and lose power. A large amount of water, engine will cease to run.