Joe H
My guess is when you screw driver start it you are back feeding 12 volts up to the key or fuse panel.
Joe H
David, you need to look at a wire diagram to figure out where the power is going when you back feed the system with a screw driver
Fran and Gord
Hi Mugsy. I suspect your ignition switch.
You have been getting some good advise here and I don't hear you checking these things out.
You need three things to start an engine.
- Fuel in the carb.
- Spark at the appropriate time.
- A way to turn the engine over.
My best quess is that you have two of those items. Which one do you think that leaves you to check out?
You wrote
The power wire from fuse box to coil gets 12+ volts when engine is cranking.
Pull one of the spark plug wires off. Put another spark plug in the wire end. Ground the body of the spark plug on the engine someplace that has no paint. Crank engine and see if the plug is firing. If not, jack the radiator cap up in the air and put another truck underneath it.
You have been told a number of times to check the grounds.
Your reply was
Checked grounds today. Everything seems good.
For some reason I'm not very confident with that reply. It requires the use of a voltmeter and not the one that you know to be questionable.
