Question about 1994 Mercury Grand Marquis

1 Answer

My 1994 mercury grand marquis bog when i floor it, but if i accerate it nice and easy after i let it warm up for about five minutes, it runs fantastic. What can it be?

I replaced the fuel filter, air filter, fuel pump, and the fuel injectors. What can it be?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 80 Answers

HI, you are describing classic high tension circuit breakdown, renew spark plugs and fit new HT leads, good luck.

Posted on Mar 30, 2014

  • Mark Wymer
    Mark Wymer Mar 30, 2014

    I would try plugs and wires next. It's a cheap next step. The fact that you say when it warms up it's fine makes it tricky. If you're in real cold weather (below 0) the oil may not be circulating but I really doubt that's the problem.

×

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

emissionwiz
  • 75822 Answers

SOURCE: 1989 mercury Grand Marquis fuel system

The fuel pump relay is under the hood in the MAXI fuse box, it is a black box with a huge wiring bundle comming out of it.

Posted on Sep 04, 2008

chuck943
  • 783 Answers

SOURCE: emergency fuel shut off switch for 1992 mercury grand marquis

It is in the trunk I can remember which side on a 92 but it will be behind the side trim panel almost straight down from the trunk hindge.

Posted on Feb 21, 2009

  • 186 Answers

SOURCE: 2001 mercury grand marquis. Engine stutters or

Start car and use a squirt bottle of water to wet the wires and coil, if you see it spark or run rough one or both are bad, repair the wires first as they are more common.

Posted on Aug 02, 2009

  • 5 Answers

SOURCE: 1994 Mercury Grand Marquis Check Engine Light Code 332

its the tube going from the egr valve to your exhaust it have carbon build up and you either have to replace it or get a metal coat hanger and clean it out.

Posted on Sep 26, 2009

  • 398 Answers

SOURCE: Where is the fuel filter located on a 2003 mercury

on the drivers side under the car bout the front seat area

Posted on Mar 05, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Engine starts then dies after 2 to five minutes 85 mercury grand marquis have replaced distributor , ignition module , coil


Since you have replaced some of the ignition parts, have you checked fuel pressure and the fuel pump relay ?
Do you know what you are loosing when the engine dies ?

Aug 31, 2014 | 1985 Mercury Grand Marquis

1 Answer

1998 mercury grand marquis bogging out


Pressure in the cooling system from somewhere. May be blown head gasket if it is bogging out on you.

Sep 01, 2012 | 1998 Mercury Grand Marquis

1 Answer

This mercury is a 1994 V8 equipped. It sputters and and backfires through the breather like it would if it had a carb. It does this for miles even after prior warm up.


I'm having the same problem it sputters and backfires between 0 and 30 then just kicks in and acts normal recently did tune up. Any suggestions? Mine is a 94 grand marquis with a 4.6l v8

Mar 01, 2011 | 1994 Mercury Grand Marquis

1 Answer

1997 Mercury Grand Marquis LS 155,000 miles, excellent cond. Has an A/C problem. After not running for a long while (like overnight), the A/C at first puts out cool air, then after 4 - 5 minutes, no more...


You can try a low pressure switch. I have had to replace several, one in a 1994 Crown Vic with 161,000 miles. I used gauges too, but I think like any electric switch the contacts get dirty and they get less dependable.
You just remove the electric connector, unscrew the old part and reinstall the new one.

Aug 30, 2009 | 1997 Mercury Grand Marquis

3 Answers

1995 grand marquis is bogging when floored


Is your check engine light on? If so What codes are present?...

Aug 05, 2008 | 1995 Mercury Grand Marquis

Not finding what you are looking for?
1994 Mercury Grand Marquis Logo

130 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

fordexpert

Level 3 Expert

5501 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...