i recently bought a 95 grand marquis it has sat for 9 years

Asked by Guru91DHGJ Dec 05, 2021 at 05:51 PM about the 1995 Mercury Grand Marquis 4 Dr LS Sedan

Question type: General

i have replaced the battery and terminals as they were extremely corroded and
it cranks over but does not start the fuel relay clicks but i am not getting any
fuel to the rail emergency shut off fuel switch is on so its not that i just cant
seem to get ny fuel to the rail is this a bunk fuel pump? it has some old fuel in
it still should i drain it all out and fill it back up and clear the lines? it doesnt
even sound like its priming

2 Answers
307,265

Gene answered 2 years ago

Sitting that long and you have bad fuel in the tank is a sure sign the fuel pump is seized. Drop the tank, clean it and replace the pump assembly along with the relay, flush the fuel lines before putting the fuel tank back in so that crud doesn’t foul the new fuel and pump, then the fuel filter. Better change out all the fluids too due to moisture build up and the coolant cause it most likely has lost all protective additives and may have already started corrosion in the cooling system. This is the old Ford OBD1 system unless it was built really late 95 then it may have the early generation OBD2. I hope you have good luck reviving this Mercury icon.

Mark helpful
5,315

Trippmeister answered 2 years ago

Tank & pump are the answer, but to gamble, suck out the gas, put in a little fresh and a bunch of fuel system cleaner. Long shot. Gotta dissolve that varnish, but you'd have to disconnect the fuel from the injectors to flush.

Mark helpful

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