Question about 1981 Ford F 100
When i bought this ford f100 pick up it started,a day later it broke down,then i got it started again,i replaced the starter,alternator,battery and battery cables,i now have a dead truck in my driveway.can anyone help me?
If it's an automatic, and the engine doesn.t turn at all, the shifting lever may not be fully engaged in park,wiggle the shifting lever all the way up and down while turning the ignition,or put it in neutral and try it.check the starter solonoid, the pos.battery cable is connected to it.take a screw driver and jump the circuit from the where the cable is to the small wire going to the starter,it should crank over, if not the solonoid could be bad. check the small wire going to the starter.If you get back to me let me know if it's automatic or standard,6 or 8 cyl or no crank at all, or no start.
Posted on Jan 25, 2009
It sounds as if you have a short in your wiring somewhere that is draining your battery. I would start with a visual inspection of all the wiring harnesses for any frayed insulation or exposed wiring. Next I would check the installation of any aftermarket items (that require wiring) installed on the truck prior to your purchase of the truck. Many times items such as aux lights or radios are installed by individuals who don't give any thought to how they are wiring in these things or where to splice into a wiring harness to power them. I assume that your battery is brand new, so you shouldn't need to test your battery, as well as your starter, or alternator. If everything still checks out, you will have to go over your wiring harnesses with a meter or a light tester to find the ground fault. This is tedious, but what you could try is (recharging your battery with every attempt) is to pull a fuse from your fuse box, wait for a couple hours, then attempt to start your truck. If the battery is weak (or dead) then that particular fused circuit wasn't the culprit. Re-insert the fuse, pull a different fuse and start this process over again. If the battery is strong, then the ground short is most likely in that circuit that you pulled the fuse out of. Check the fuse box to find out what that particular item that fuse was protecting (example: AC, Flashers, etc) and then focus on the wiring to that particular item. If there is no writing at all on the fuse box, then you will need to find a fuse box diagram in a repair manual to identify the fused circuit. If you end up pulling each individual fuse and still get a weak battery, then your short probably is between your battery and your fuse box. Wiring problems are a real pain, but the consolation is that older trucks don't have as much wiring in them as a car does and the wiring is generally more exposed for easier inspections. Hope this helps.
Posted on Jan 25, 2009
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Posted on Jan 02, 2017
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