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Klaus Fischer Posted on Mar 31, 2017

Engine 400 CID vacuum diagram for 1978 Mercury Grand Marquis

5 Related Answers

Anonymous

  • 10 Answers
  • Posted on Feb 19, 2009

SOURCE: Fuse diagram

http://www.supermotors.net/getfile/254296/fullsize/fuse1995.jpg

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Anonymous

  • 1 Answer
  • Posted on Mar 07, 2009

SOURCE: 1978 ford vacuum diagram

if you have not recieved the info you need, send me an email address to [email protected] i will send you a copy of the mitchell manual spec. i would need to know engine size, axle etc. or if you have the calibration number.

Anonymous

  • 5 Answers
  • Posted on Sep 26, 2009

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.

Patrick Rayome

  • 1757 Answers
  • Posted on Mar 16, 2010

SOURCE: 2002 mercury grand marquis spark plug wire diagram

For the 4.6L V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
(back of engine)
4-----------8
3-----------7
2-----------6
1-----------5
(front of engine)

Let me know if this helped...

ZJLimited

ZJ Limited

  • 17989 Answers
  • Posted on Jan 10, 2011

SOURCE: diagram of fireing order for

1999 Mercury Grand Marquis 4.6 liter V-8 VIN "W"

zjlimited_99.gif

Hope this helps (remember to rate thsi answer).

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1answer

2002 mercury grand marquis

A little confusing I found 3 fuse box diagrams which cover your car. Not sure but hope it helps.

Mercury Grand Marquis (1998 - 2002) - fuse box diagram
https://www.autogenius.info/mercury-grand-marquis-third-generation-1998-2002-fuse-box-diagram/

Mercury Grand Marquis Third Generation (1998 - 2002) - fuse box diagram
https://www.autogenius.info/mercury-grand-marquis-third-generation-1998-2002-fuse-box-diagram-2/

Mercury Grand Marquis Fourth Generation (2002 - 2011) - fuse box diagram
https://www.autogenius.info/mercury-grand-marquis-fourth-generation-2002-2011-fuse-box-diagram/
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Engine vacuum line diagram for 03 grand marquis 4.6

The vacuum line diagram is under the hood on the federal emissions decal. Any other vacuum related diagrams are in the Ford electrical and vacuum troubleshooting booklet. You can buy these used on eBay for less than $20.00 US
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Wiring diagram 2000 Mercury grand marquis driver door

CHECK WITH YOUR NEAREST MERCURY DEALER FOR HELP!
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How can I find a vacuum hose diagram for a 1978 mercury grand marguis

Orielly auto parts or Auto zone should have a repair manual for that car. They go for about $25.00. The manuals have vacuum diagrams.
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What are the igniton timing,firing order, spark plug gap specifications for 1998 Merc Grand Marquis with 400 cdl engine?

1998 Mercury Grand Marquis
4.6 liter V-8 VIN "W"

98d6a49.gif

I will get you the rest of the info in just a few hours...I am at work!
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My 1978 Mercury Marquis ''stutters'' and shakes a little when it gets to the shifting range between 2nd and 3rd (roughly at 40 mph). Scared to take it above 40 mph!

hi,

make sure your vacuum advance doesent have a slow leak, attach a spare piece of vac hose to the vac advance mod on the distrributor and s u c k on that hose., it should hold air and not leak make sure you dont have any other vacuum leaks. the vac mod on the tranny could have the same problem. open the jets on the carb a little by turning counterclockwise, you see the engine mellow out. theres two screws up under the front of the carb might need a rebuild, fuel filter could be half clogged. and then re time the engine..

jm
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