Why is my 87 buick custom squirting excessive gas through the injector? I've installed a new fuel pump, fuel filter and injector. Should I replace the relay next. car won't start unless I disconnect t

SOURCE: how do I change the fuel filter in a 1999 Buick Century Custom?

Philly, the fuel filter is attached to the frame in front of the gas tank, under the driver side of the car. You must relieve the pressure in the fuel line before you start, and it is also recommended that you disconnect the neg. battery cable. After disconnecting the neg. cable, remove the gas cap. Next, look under the hood on the fuel rail for a shrader valve (like the type on a bicycle tire). Place a rag under the valve, remove the cap, and press the valve in with a plastic pen to relieve the pressure in the line. You can now go under the car to remove the filter. You can disconnect the fuel lines easily with an inexpensive plastic disk made for this purpose (only a few $ for several sizes at a parts store). Be careful of fuel in the line that will drain out, no smoking or sparks during this procedure. Should be 1 bolt securing filter to frame. Note arrow on new filter, and install in the correct direction. Replace cap on shrader valve, put gas cap back on, reconnect battery cable. The low coolant light is probably a faulty sensor signaling that it's low, when it's actually ok. Look for wires coming from the reservoir bottle, you should be able to find the sensor at the end of the wires to replace it. If you change the fuel filter in a garage, leave the door open for air circulation, gas fumes can explode easily, having the door open will help dissipate the fumes.

SOURCE: New pump still no fuel

Its not unheard of for a pump to go bad that soon, can you hear it run when you turn the ignition to on position, if not chk. fuse and relay and all electrical connections and grounds, If it does run get a fuel pressure guage and chk. the pressure.

SOURCE: what would cause the fuel

faulty fuel injector, open/shorted fuel injector circuit/wires!!

SOURCE: 1992 Buick Century Custom. Trouble starting as

Sounds like you need to replace the fuel pump relay which is about $13 at Autozone. It is simple to replace. It is under the hood on the passenger side right behind the headlights.

SOURCE: 1990 Buick Century Custom 4-Dr

Check your fuel pressure at the schraeder valve that is on the fuel rail. If you have fuel pressure, check for spark.If no spark, then ignition diagnosis is needed.If no fuel pressure, check for diconnected, or pinched wires, as this can easily happen during an engine swap.