My 89 F150..4x4...5.0 liter has lost all spark when trying to start. I replaced the coil and ignition switch. Can some one tell me if I should have voltage at the coil with the key in the run position. Also, if I should and don't, where to head next
Any input would be great

 

Yes. It gets it's voltage from the ignition switch. If you look at this diagram

http://www.autozone.com/images/cds/g...3d800a3a44.gif

You can see the hot wire is a white/lightblue. If you can find that fusible link D, it may be burnt out.

 

Thanks Dave.....It may be tomorrow before I can look at it, but I will let you know the results

 

Dave.....sorry about the delay, flu had me down.....you were right on about the fuseable link, it was bad , replaced that but still no spark. I checked the voltage with the key on and got 12 volts, but when cranking the voltage dropped to about 9 volts. Any thoughts would be appreciated. I now have a new coil , switch and fixed the link.......??????
Jim