Question about 1998 Mercury Grand Marquis

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1998 mercury grand marquis 4.6 sparkplug change

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Un-plug the coil packs--injectors--pull wiring out of the way,and then unbolt the coil packs and pull them out,and use a 6 inch to 8 inch extension on a 3/8 drive rachet with a 5/8 plug socket...snug the plugs back in pretty good because the 4.6 and 5.4 are known to blow the plugs out and wreck the threads on the head.On the drivers side you may have to unbolt the fuel rail(2 bolts)and lift it up off from the injectors,make sure that you dont tear the 0 rings on the injectors and watch to see if some or any 0 rings comes off from the injectors and stays with the fuel rail..when putting the fuel rail back on the injectors,use a little motor oil and wipe it on all 0 rings to assist in going back together without tearing the 0 rings.

Posted on May 08, 2009

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Posted on Jan 02, 2017

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1 Answer

How to change intake manifold on 1998 mercury grand marquis


9 size m10 bolts at the back of the head where the manifault are tied

Jul 23, 2014 | 1998 Mercury Grand Marquis

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How to replace voltage regulator in a 1998 mercury grand marquis


THe voltage regulator is in the alternator. They say to repair you have to change the alternator - which is not entirely true. A knowledgable auto electrician can solve the problem at very little cost - comparatively.

Nov 15, 2011 | 1998 Mercury Grand Marquis

1 Answer

1998 grand marqiues 4.6 firing order


For the 1998 Mercury Grand Marquis 4.6L V8

Firing Order:
1-3-7-2-6-5-4-8

Cylinders:
........(back).........
|...4...|.......|...8...|
|...3...|.......|...7...|
|...2...|.......|...6...|
|...1...|.......|...5...|
.........(front)

Let me know if this helped, or if you have additional information questions. Feel Free to contact me at FixYa.com!

Apr 11, 2010 | 1998 Mercury Grand Marquis

2 Answers

It start with new battery but then it dies


dies right away or over time. if it is over time you probably have a charging problem, probably the alternator. pull it out and take it to a parts store most of them will load test it for free before popping for a new alternator

Oct 27, 2009 | 1998 Mercury Grand Marquis

1 Answer

Cigarette lighter doesn't work in my 1998 Mercury Grand Marquis


sounds like the lighter itself is bad because the fuse for the lighter is the same as the fuse for the connecter in which the inspection machine plugs in to.

Oct 18, 2009 | 1998 Mercury Grand Marquis

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