I have an 1983 mercury grand marquis that recently the fuel pump was changed. Then the car would start then die acting as if no fuel was getting to the carb. I thought it was a bad fuel regulator, then I tried to run the fuel without it and fuel gushed through the injectors, so I replaced the regulator with a new one. I worked fine for a few hours until it has went back to fuel coming out the injectors and it doesnt matter what setting you have on the regulator. If anyone has an idea what would be then please help.|||Your engine sounds like you have a variable venturi unit, and if so you need a good tech for this repair. Ford had a weak diaphragm in the back of that unit, and it would go bad causing the engine to run poorly, hard start and no start conditions.
The fix is remove the unit, remove the rear cover, drill a drain hole in the body, install a new diaphragm. You should get an old Ford tech as this unit has not been used for 20 yrs. and I have not seen one since 1984. Drilling the drain hole in the wrong place is not repairable, you%26#039;d then have to buy a complete unit as you would have no buildable exchange.
Sometimes the cheapest thing to do is pay for somebody else experience, unless you can afford the stupid tax.
You may also have a throttle body injection unit, but in either case it is worth the money to at least pay a good tech so that the parts you do install are what you need to correct the problem.|||floats in the carburator are stuck|||fuel injectors in the carb? not likely.. throttle body injection more like it.
you probably blew out the seals in the injectors,, just replace them|||carb have needle valves that shut off the fuel to the carb when the float in the carb is raised by the incoming fuel.
either the float is not floating (holes in it) or the needle valve is stuck. sometimes a light tap at the side next to the needle valve will temporally fix it, if it does you need to rebuild the carb.
