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

1 Answer

1 person answered not to the degree of knowing exact anyone know where fuse links r 1987 xR7 power seats.r there more than 1 mech said 1s running off starter silanoid ok r there more where located

Most are at the starter solenoid on the same post that the battery (+) cable hooks to.

1987 Mercury... | Answered on Jul 14, 2016

1 Answer

Diagram for fuel system

http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=23926

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

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

1 Answer

WATER PUMP

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

1 Answer

LEAKING RADIATOR

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

1 Answer

Won't start

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

1 Answer

Loction neutral switch 87 mercury grand marquis

clean battery connection tighten

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

3 Answers

My car wont start. I replaced my battery but it still wont start. Tested the alternator and it is good. Something might be draining the battery but not sure what?

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,
Scott

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

1 Answer

Will not start has no spark has fuel until cranked

It's the fuel pump.

1987 Mercury... | Answered on Oct 16, 2013

1 Answer

Wont start

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

2 Answers

How difficult job of replacing smog pump or idler

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

1 Answer

Smog pump pulley frozen, causing loud noise

replace pump or remove it and replace with idler

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

0 Answers

Heater core

1987 Mercury... | Posted on Aug 21, 2013 | Be the first to answer

3 Answers

1987 mercury grand marquis,what type of power steering fluid.

reg power steering fluid

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

1 Answer

87 grand marquis windows wont work

/www.youtube.com/watch?v=9aygFAErvuY

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

1 Answer

I dont have power to my blower on a 1987 grand marquis station wagon and fuse is ok is it a resister?

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

2 Answers

Gas gage is not working 1987 grand marquis

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

1 Answer

I need to replace my computer in my 1987 Mercury Grand Marquis

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