Ok so as you can guess no spark in spark plug (my truck is posted in my signature box), i replaced the coil, spark plugs, cap, rotor, high tension coil wire and all 8 spark plug wires, and when wipped out the volt meter and there is no power to the coil period (i had the ignition all the way to start, one lead on the postivie, and other on negative), we tested the ballas resister and there is about 9 volts (going in and out) when igntion was on but then the igintion was in the start postition it dropped to about 8 volts. i have an assumption that it is the eletronic igniotin control box on the fender.
Question, is the ballast resitor you hace a 2 terminal or 4 terminal. If its 4 try swapping to the other set of terminals. IIRC there are two different resistance levels on each side of the 4 termnal resistor.
The starter solenoid and starter relay should be within 10ths of a volt of the battery.
Moving one lead to the positive post, and other to starter relay or starter while turning the key should give a reading of only decimals, such as .300, maybe less.
Have you bypassed your amp gauge yet? (weak spot, failure prone)
It may "work", but it can still be a problem area wether it is your current problem or not. I consider the bypass a must-do for any 81 and older truck. Read this for some insight: http://www.madelectrical.com/electricaltech/amp-gauges.shtml
Ok, according to this crude diagram, it isn't part of the circuit.
If that diagram is correct, there shouldn't be anything between the relay and battery, except for the battery terminal and whatever terminal is used on the relay. That said, if power isn't coming out sufficiently high, but still some coming out, then you have a relay problem (not as likely), or not enough going into the relay (very likely).
Ok so in this picture i tryed (before when it still wouldnt turn over) to move the bright green marked wire to the post to the starter relay (to bypass the dark green wire) cause i though it was a problem,
and i burned a ground wire (at that time the ground wire i have there was a 16-18 gauge, i didnt know it had to be a larger size)that is inside the purple circle and im wondering would that have caused any form of damage to the starter relay box??
ps i did replace both of the postive and negative battery cables and the starter relay recently
that orange wire on starter relay should have battery voltage with key on....
also check the green with whitestripe wire coming off relay that's ground for relay runs off your neutral safety switch....
jump that pink wire(of starter relay) with battery voltage and crank her up if it starts then its your relay....this way your giving the coil 12v directly...
x2. That is a crappy spot for a ground. Attach it to the engine - cylinder head should have a spot for it, clean the contact area, apply a *very* thin amount of dielectric grease (to prevent corrosion) and tighten it down. Then make sure you have a proper ground strap from the engine to the frame or body. My ground cable is split and has one going to the block and another part going to the body.
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