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Old 03-09-2002, 02:16 PM
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Vehicle: 1997 Ford F-150
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firing order for 4.2

was wondering if the order on the coil pack is as it says 123 on the left side 546 on right as you are facing the engine. does that mean that the front cyl. on the right side is 4 or the back cyl next to the firewall is 4 ?
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Old 03-09-2002, 03:57 PM
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#4 is on the front right side.
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  #3  
Old 03-09-2002, 05:38 PM
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firing order

Firing order is:
1-4-2-5-3-6

Engine
Back
3 ---------6
2 ---------5
1 ---------4
Front
__________________
1999 Reg cab Short Bed XLT 4.2L 5sp
Airaid FIPK, Superchip, Custom MAGNAFLOW exhaust, JBA Cat4ward Headers, Flex-a-lite dual electric fans, Taylor Spiro Pro 8mm plug wires, Bosch Platinum +4 plugs
Kenwood CD player, Kenwood 10 disk CD changer, Alpine AMP, Infiniti Kappa/Reference speakers,
35/20% tint, Slotted Tail light covers, tonneau cover, bug gaurd, 255/65-16 Eagle #1's

Future Mods:
Underdrive Pullies
3.73 gears
billet grille
many more....


Other vehicle:
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  #4  
Old 03-09-2002, 08:11 PM
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OK, so that is the order on the heads, but the order on the pack is

back (firewall)
3-----6
2-----4
1-----5
front (radiator)

RIGHT???

On my brother's truck we have it on the pack as

back
3---4
2---6
1---5

This is the way we have found it to run the smoothest, but it still has a very slight miss in it. We have tried it the normal way and it just won't start. We have new Bosch Platinum plugs and FMS wires. We also couldn't find any vaccume leaks and the truck doesn't overheat while driving. Any and all suggestions appreciated!!! Thanks!

Nathan
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  #5  
Old 03-09-2002, 09:33 PM
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Join Date: Mar 2000
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firing order

This is correct for the coils:

back
3---4
2---6
1---5


And for the engine:

Back
3---6
2---5
1---4
__________________
1999 Reg cab Short Bed XLT 4.2L 5sp
Airaid FIPK, Superchip, Custom MAGNAFLOW exhaust, JBA Cat4ward Headers, Flex-a-lite dual electric fans, Taylor Spiro Pro 8mm plug wires, Bosch Platinum +4 plugs
Kenwood CD player, Kenwood 10 disk CD changer, Alpine AMP, Infiniti Kappa/Reference speakers,
35/20% tint, Slotted Tail light covers, tonneau cover, bug gaurd, 255/65-16 Eagle #1's

Future Mods:
Underdrive Pullies
3.73 gears
billet grille
many more....


Other vehicle:
2001 Expedition 4.6L Sport Package
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  #6  
Old 03-17-2002, 10:39 AM
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firing order

thank u guys very much for your help. still havent found problem . am thinking about coil pack now . any suggestions?
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Old 03-17-2002, 10:39 AM


 
 
 
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