MDfireman

I have a 1986 F150 with a 302, first year optional fuel injection. I have no power ANYWHERE. No lights, radio, dash, ignition switch, fuse panel, headlights. I have a new solenoid with power on both sides. I can cross over the solenoid and get the engine to crank. Batter is new, cranks forever, will not start. I have power on both sides of the inline fuses, so they are good. I have replaced a bad ignition module before which is located INSIDE the distributor. When this goes bad it DOES NOT kill power everywhere, simply no spark to plugs when that does happen. I have checked my batter cables and cleaned the cables to the body, frame and engine to ensure a ground. Any ideas for where the electrical power is?

MDfireman

Note: I did have a trickle charger on the truck. I went out to start it and nothing happened, completely dead. Then couple minutes later is started, ran enough to move it from the front of the garage. Then it shut off. It started one other time, then died for good. Once again, no power anywhere other than coming off the solenoid after the fuseable links, its gone. I was thinking ground fault somewhere.

R.S.LOGAN

Check this , might help .


Re: 1986 ford f150



On Mon, 8 Jun 2009 20:21:31 -0700 (PDT),
gwmorris2@comcast.net wrote:

You have probably burned the fusible links. These are fuses
in effect which look like wires including the one near the
solenoid that you replaced. They have specific electrical
qualities to function as a fuse. They must be replaced with
like links of the same length to function as intended.
Regular wire will not replace a fusible link. You truck has
several of these all of which are required. When you are
using the starter, the ignition is supplied thru the start
circuit. When the switch is released to run, the ignition
is supplied thru the run circuit. There are fusible links
for the run circuit and the ECM as well as the fuel pump
IIRC on that one. I do not recall the exact location of the
fusible links. I believe they were all yellow in the
harness on or near the left fender. Make sure you replace
them with the correct links. You need to get hands on a
vacuum and wiring manual for it which will give you all the
info needed to quickly locate and test the circuits. It is
probably still available from Helm, inc or can probably be
found somewhere on ebay.

Lugnut