I have a 89 ford that has 2 plugs that ant firing wh

Firing Order for the Ford 429 and 460 is :
1-5-4-2-6-3-7-8 (Same as 260, 289, 302 and most other Ford V8's)

Insde the GAS tank

See pictures (below)

rockauto http://www.rockauto.com/en/catalog/ford,1989,e-350,7.5l+460cid+v8,1117202,fuel+&+air,fuel+pump+&+housing+assembly,10147

More Information for DELPHI HP10155

Carnac the Magnificent

Transmission Types : Ford E4OD/4R100, 4 Speed, Automatic Transmission
Comments: w/ Shallow Pan = 20 bolt holes 4 speed

Drive Trains : Four Wheel Drive
Transmission Types : Ford C6, 3 Speed, Automatic Transmission =17 bolts 3speed

What does the dash indicator say and does the stick have an od button on it? there is only 1 3 speed for the 460 and only 1 4speed for the 460

Engines:{300, 302, 351w}, {400, 351m, 460}, {6.9L, 7.3L IDI}, {352, 360, 390, ect.}
Fluid:
Pre '77: Type F
Post '77: Mercon
Display: PRND21
Pan 17 bolts "Utah" shape
Ratios:
1st 2.46:1
2nd 1.46:1
3rd 1.00:1
Trans code: K

so you should have the 3 speed acording to the code
http://broncozone.com/topic/10386-transmission-id-chart/

255 cid (4.2L), 302 cid (5.0L), 360 cid (5.9L), 390 cid (6.5L), 460 cid (7.5L) V8 engines Firing order: 1-5-4-2-6-3-7-8 Distributor rotation: Counterclockwise




351 cid W & M (5.8L), 400 (6.6L) engines Firing order: 1-3-7-2-6-5-4-8 Distributor rotation: Counterclockwise

Hello! Here are two vacuum diagrams for the 460 engine...#1=1987-89....And #2=1990-95...Depending on manufacture date of your motor home's engine I'm sending both diagrams...Guru.............Saailer

I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

For the 1995 Ford F350 V8: 460 cubic inch = 7.5L Engine:

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

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

Distributor:
....(back)
....[X]..5
...4.............1
2........O........8
...6.............7
..........3...[X] - clip
......(front)

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

do a compression test.if you disconnect the wire,it there a spark?or is there no change if you disconnect it?you may have no spark or a bad 2 cylinders,or the firing order has been mixed up

If I remember right, it's 3.2 pounds.