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Does the starter spin the engine normally when you turn the key to the start position ? Do the headlamps shine bright ? If any of these work correctlly the battery is fine . If the engine turns over normally an doesn't start an run it doesn't mean the fuel pump is bad either .There could be any number of thing's wrong , testing first electrical circuits of igintion system , fuel system . Hooking up a fuel pump pressure gauge , pull a plug wire an check for spark . I'd say your best bet would be to take your to a qualified repair shop before you replace parts you don't need .
If the engine doesn't turn over it is not a fuel issues as fuel will keep it from starting. However the engine will still turn over what is more likely is a starting system concern since it just clicks it is probably the starter or starter circuit. again the fuel pump cut off only turns off power to pump which will cut fuel.. engine will still crank.
Automobiles: 1996 Mercury Sable Something electrical corroded while it was parked.
connection between battery cable and (lead) battery connector - look for green corrosion of copper wire cable going from battery to starter motor corroded corroded ring terminal on starter motor threaded terminal ignition switch contact corroded at the "start" position Battery delivers 12 volts, but fails to deliver proper CCA/fails load test starter motor inoperative starter solenoid seized/immobile engine ground wire missing/broken/corroded terminal(s) - frame-to-engine starter relay failed/corroded terminal(s) wire from starter relay to starter corroded/missing/corroded terminal(s)
For completeness, here's the Troubleshooting Guide for 1996 Mercury Sable:
Priority Action Part Type Cause 1 Inspect Ignition Switch - Improperly Connected or Faulty Ignition Switch. 2 Inspect Battery - Battery Discharged or Faulty. 3 Inspect Battery Cable - Corroded, Broken, Shorted or Poorly Connected Battery Cable. 4 Inspect Starter Solenoid - Starter Solenoid Faulty. 5 Inspect Starter - Starter Motor Faulty. 6 Inspect Wireset - Worn or Damaged Spark Plug Wires. 7 Inspect Ignition Coil - Faulty Ignition Coil. 8 Inspect Distributor Cap - Loose, Cracked or Worn Distributor Cap. 9 Inspect Spark Plug - Incorrectly Gapped or Fouled Spark Plug(s). 10 Inspect Distributor Rotor - Loose, Cracked or Worn Distributor Rotor. 11 Inspect Fuel Tank - Fuel Tank Empty. 12 Inspect Carburetor - Worn, Faulty or Damaged Carburetor. 13 Inspect Fuel Pump - Faulty Fuel Pump. 14 Inspect Choke - Stuck or Improperly Functioning Choke. 15 Inspect Fuel Filter - Clogged or Dirty Fuel Filter. 16 Inspect Fuel Pump Relay - Faulty Fuel Pump Relay. 17 Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator. 18 Inspect Fuel Pump - Low Fuel Pressure. 19 Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC. 20 Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.
You already took #1 off the list. The national auto parts chains (AutoZone, Pep Boys, and Advance Auto Parts) will hook up a diagnostic tool to your car to perform a Charging System diagnosis for free - its an easy way to exonerate & differentially diagnose your Alternator/Battery/Voltage Regulator.
Priority Action Part Type Cause 1 Inspect Battery Battery Discharged or Faulty. 2 Inspect Battery Cable Corroded, Broken, Shorted or Poorly Connected Battery Cable. 3 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 4 Inspect Distributor Cap Distributor Cap Cracked or Burned contacts. 5 Inspect Coil - Ignition Faulty Ignition Coil. 6 Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s). 7 Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s). 8 Inspect Starter Starter Motor Faulty. 9 Inspect Fuel Pump Low Fuel Pressure. 10 Inspect Solenoid Switch Faulty Starter Solenoid Switch. 11 Inspect Relay - Fuel Pump Faulty Fuel Pump Relay. 12 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator. 13 Inspect Ignition Switch Improperly Connected or Faulty Ignition Switch. 14 Inspect Starter Motor Faulty Starter Motor. 15 Inspect Fuel Injector Dirty or Worn Fuel Injectors. 16 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainerat. 17 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The ECC. 18 Inspect Fuel Tank Fuel Tank Empty. 19 Inspect Carburetor Carburetor Flooded or Faulty Choke. 20 Inspect Distributor Worn, Loose, or Incorrectly Installed Distributor. 21 Inspect Distributor Rotor Burned Distributor Rotor contact
Carburated vehicles ether have an automatic choke, or the very old ones, a hand choke. Yours has an automatic choke. The starting problem likely is a problem with the choke. The problem is almost certainly not the fuel pump.To set the automatic choke, push the accelerator to the floor, and RELEASE. Then start the engine just like you would a fuel injected vehicle. If this doesn't solve the problem, then the automatic choke needs to be repaired.
I'll be honest, it sounds like the transmitter in the key isnt reading. A key remake without the factory transmitter will start the car, but only keep it running for a few seconds before cutting power to the motor. your electronics will still run....This may be too obvious, but honestly, thats what it sounds like.