Runing bad
If it's a California truck it's a good chance the ignition is EEC-III (brown grommet on ignition module.)
The EEC-III distributor rotor fires alternately from both sides of the distributor rotor.
The the spark plug wires for an EEC-III distributor will be wired counter clock-wise in a different order.
351w firing order, CCW: 1-3-7-2-6-5-4-8
351w wire order, CCW: 1-5-7-8-6-3-4-2
SOURCE: firing order for 97 f150 4.6l
No problem,
Firing order is 1-3-7-2-6-5-4-8 and here is a diagram of the ignition coils and plugs;
1 6
front 5 3 1 2 3 4
of
vehicle 4 7 5 6 7 8
8 2
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SOURCE: What is the firing order and proper timing for a 1990 F150 302 V8
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SOURCE: firing order 2001 ford f150 4.6
the firing order is 1-3-7-2-6-5-4-8, cylinders are number right bank (passenger side) 1-2-3-4, left bank (drivers side) 5-6-7-8
SOURCE: I need firing order diagram for a 1993 F150 5.0 2wd
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5.0L and 7.5L engines Firing order: 1-5-4-2-6-3-7-8 Distributor rotation: Counterclockwise
SOURCE: 2006 f150 firing order
For the 4.2L:
Firing Order:
1-4-2-5-3-6
Cylinders:
3----------6
2----------5
1----------4
(Front of Vehicle)
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