20 Most Recent 1987 Mercury Grand Marquis Questions & Answers

You need to attach a pressure gauge to the schrader valve and measure the fuel pressure with the key on and also while running. You need to see about 40 lbs in both cases.

1987 Mercury... | Answered on May 22, 2017


Hope this works. Post back if it doesn't show up.

1987 Mercury... | Answered on Apr 24, 2014

if the water pump is bad, it will leak from the weep hole on bottom of pump. unless the bearings seize up on pump and will not turn. you will see coolant running from bottom.

1987 Mercury... | Answered on Apr 06, 2014

check to make sure pet is tight; tighten all hoses. Anything more and you will have to creep under and see where it is leaking. Hopefully not serious.

1987 Mercury... | Answered on Mar 31, 2014

switch is located on top of the steering column, just below the mounting bracket. check to see if solenoid is getting voltage when in the crank position 1st, than go after the switch.

1987 Mercury... | Answered on Mar 16, 2014

clean battery connection tighten

1987 Mercury... | Answered on Mar 16, 2014

Does the engine spin over and not start? Or turn the key and nothing happens?
New spark plugs and wires won't have anything to do with the starter and battery keeping the engine from spinning when you turn the key.
Need more specific explanation. Thanks,

1987 Mercury... | Answered on Jan 07, 2014

remove your coil and take it down to most any part dealer and they can test it. from there check coil wires, plug wire,cap and rotor(if present) and ignition module.

1987 Mercury... | Answered on Oct 15, 2013

Depends on your experience,the tools you have
& how much patience you have.

Everyone will see any automotive repair
from a different perspective

1987 Mercury... | Answered on Sep 20, 2013

replace pump or remove it and replace with idler

1987 Mercury... | Answered on Sep 20, 2013


1987 Mercury... | Answered on Jul 09, 2013

Power goes from the fuse to the function select switch, then to the blower motor. The fan switch and the resistor is the ground circuit for the blower.

1987 Mercury... | Answered on Apr 17, 2013

Fuel level sending unit. I hope it's not, but ya..... it's inside the fuel tank. Also called the float level.

Not an easy task unless you are ready to drop the fuel tank at home.

Some had a small access hole under the back seat so you could get to it easier, but it's not that easy to get the back seat out, and harder to get it back in.

Hope this helps.

1987 Mercury... | Answered on Mar 11, 2013

Are you sure-- they don't fail unless someone
ruins them with improper testing

Have you had every possible component test done,
to resolve whatever is the problem?

1987 Mercury... | Answered on Mar 06, 2013

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