V6 1- 4- 2- 5- 3- 6
V8 1- 3- 7- 2- 6- 5- 4- 8
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1-5-4-2-6-3-7-8
It is 1-5-4-2-6-3-7-8. The other firing order is for a 351 mofided or cleveland. You can try both but I'm pretty sure I'm right. Try it and tell us who is right.
Sorry, that should be modified
I was backwards the 1-3-7-2-6-5-4-8 is for a 351 windsor not the cleveland. But you have a 302 anyways, also some 5.0 HO motors use the 351 firing order too. I'm still sticking with your Grand Marquis firing order being 1-5-4-2-6-3-7-8.
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SOURCE: WHATS THE FIRING ORDER FOR A 1992 GRAND MARUIS
For the 1992 Mercury Grand Marquis 4.6L SOHC V8:
Firing Order:
1-3-7-2-6-5-4-8
Cylinders:
.........(back).......
..|..4..|........|..8..|
..|..3..|........|..7..|
..|..2..|........|..6..|
..|..1..|........|..5..|
O<--Coil packs-->O
.........(front)
Coil:........................Coil:
.(back)....................(back)
(1)...(3)..................(7)...(8)
(6)...(5)..................(4)...(2)
(front).....................(front)
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SOURCE: firing order for 89 grand marquis and were to
there are two engine avail in this year, a 5.0 and a 5.8, the 5.0 is the most common so here is the info on that.
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i got two differnent firing orders which is correct. csmock132 says its 1-5-4-2-6-3-7-8 . and chuck943 & rocketman187 says its1-3-7-2-6-5-4-8
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