what would make both coil packs not fire,and the fuel pump not work on a1998 mercury marquis 4.6 engine

90

Asked by haroldp Nov 17, 2015 at 10:20 PM about the 1998 Mercury Grand Marquis 4 Dr LS Sedan

Question type: General

12 Answers

F_O_R answered 8 years ago

First of all you have 8 coils on a 4.6, one for each spark plug. The fuel pump could be bad or need a fuse replaced. Is the check engine light on?

4 people found this helpful.
Mark helpful
90

haroldp answered 8 years ago

car won't start. no fire,and no gas coming through

1 people found this helpful.
Mark helpful

F_O_R answered 8 years ago

Pull a coil and put a spark plug in it. Ground the outside of the plug to a metal part of the engine and have someone crank then engine over. If you see a spark then you have eliminated that as a problem.

2 people found this helpful.
Mark helpful

FordNut answered 8 years ago

If you are sure there is no fuel to injectors and no spark, to all coil-on-plugs, the yes, with both failing at same time it very well could be the PCM, 'brain' failed

5 people found this helpful.
Best Answer Mark helpful

FordNut answered 8 years ago

Good evening FoR. We agree on this, as we usually do

5 people found this helpful.
Mark helpful
90

haroldp answered 8 years ago

thanks. i will replace the PCM and reply to you what happened

1 people found this helpful.
Mark helpful

F_O_R answered 8 years ago

Feed back is essential to good advice!

2 people found this helpful.
Best Answer Mark helpful
90

haroldp answered 8 years ago

replaced the ECM,and the main brain.still no fire from coil packs, and no fuel.does the PCM have to be reprogrammed again for the car ?

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 296 nationwide Grand Marquis listings starting at $1,399.

ZIP:

Own this car?

Share your experience with others.

1998 Mercury Grand Marquis

Write a car review

Review another car

Shortcuts

Search Mercury Grand Marquis Questions

CarGurus Experts

  • #1
    Tracy Hooks
    Reputation
    9,700
  • #2
    Trippmeister
    Reputation
    5,060
  • #3
    Bob Beaman
    Reputation
    3,780
View All

Know more, shop wisely

Search

Related Models For Sale

Used Lincoln Town Car
16 Great Deals out of 384 listings starting at $490
Used Ford Crown Victoria
11 Great Deals out of 152 listings starting at $2,500
Used Ford Mustang
901 Great Deals out of 22,517 listings starting at $1,000
Used Buick LeSabre
5 Great Deals out of 181 listings starting at $1,895
Used Toyota Camry
2,009 Great Deals out of 34,543 listings starting at $875
Used Ford F-150
6,177 Great Deals out of 133,336 listings starting at $900
Used Chevrolet Silverado 1500
4,181 Great Deals out of 130,733 listings starting at $1,000
Used Lexus LS
122 Great Deals out of 1,744 listings starting at $2,500
Used Honda Accord
1,522 Great Deals out of 29,661 listings starting at $450
Used Lincoln Continental
35 Great Deals out of 627 listings starting at $4,600

Used Cars for Sale

2011 Mercury Grand Marquis For Sale
6 listings starting at $6,280
2010 Mercury Grand Marquis For Sale
21 listings starting at $4,825
2009 Mercury Grand Marquis For Sale
17 listings starting at $3,999
2008 Mercury Grand Marquis For Sale
33 listings starting at $4,595
2007 Mercury Grand Marquis For Sale
23 listings starting at $3,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.