One reason a 1989 F-150 may not start is a bad battery.
Low battery voltage .?
wont, start,change punp,not getting gas
i had the problem with my 97 f150, the power wire to the computer had melted on the manifold and had to be replaced, check the wire to see if its grounding out
Check you battery
1989 ford F250 Fuel Problems, It cranks but wont start
Try replacing your spak plugs. I had the same problem with my 85 Monte Carlo.
A 1995 Ford F150 will start to die after running for about 15 minutes if the fuel or electrical system have a failure. A bad battery or electrical system will also prevent it from restarting.
A 1986 Ford F150 starter won't stuff off when the key is turned off if the ignition switch is jammed. This will cause the start signal to be sent to the starter continuously.
If your Ford Bantam is not starting, you might have a dead battery or a problem with the starter. You might also have an empty gas tank or clogged fuel filter.
Believe it or not, I have had to disconnect the cig lighter in order for the tail lights to work. Sounds far fetched but it does work!
selonoid is bad on fire wall or switch wire on stater selonoid is bad
approximately 4013 lbs.