Trying to hook up an inline gps unit and getting a sparking ground wire. Dumb question but do ground wires typically have a small spark?

What's missing ? Fuel ,spark , compression ? How many miles on the vehicle ? Does it have spark , pull a plug wire while cranking an hold it near a good ground . Put a fuel pressure gauge on the vehicle , is there fuel pressure ? Do a compression test , 150 psi . engine mechanical problem . timing chain .

ground cable doesnot connect to the starter!! positive,+.goes to the red side,neg - is ground

check your ground and hot wire leading to the unit. spray a small amount to wd-40 to ensure no water

How About the CPS Crank Shaft positioning sensor? otherwise Sounds Like( Im Not Sure what you are saying you replaced the ECM) Electronic Control Module) ? Or Electronic Control Unit? Otherwise Checking to make sure you have a good ground from the battery to the motor to firewall as well,also im pretty sure there is a switch in your fuse box for the ignition and fuel pump last but not least coil could be bad even though you have ohms and how many ohms?(ps you said you forced spark thru hooking strait up to positive you got little Spark when you did that? if you did sounds like ground or low voltage or Bad Coil !! have you hooked up and tried to pull a code ? I hope this helps!!

Hi,
Check the ignition distributor cap and clean the electric contact points it might be already dirty.

if one has a spark that means your ignition coil is still okay. Remove the whole cap and check the inside part and clean it, use emery board.
Check also the high tension wires( spark plug wires ).
Hope Fixya helps you!

You should see a spark plug wire for each spark plug. The spark plugs are in the cylinder head. You have to unplug the plug wire first before you replace the plugs. Be careful as to not damage the plug wires when removing them. Be carefull not to get dirt into the cylinder when replacing the plug. Do not overtighten the new plugs. I can't remember which side of the engine the plugs are on, on your truck. You truck has the inline 5 cylinder I think.

The "Inline Spout Connector" is used to control the engine timing by dis-connecting the timing control from the timing control unit, and you must remove the inline spout connector before you can change or set the ignition timing, and if the inline spout connector is missing, then the engine timing will not be controlled by the dura-spark control unit, the check engine light should be on, and the engine will perform poorly. Usually it is located out by the distributor or over by the dura spark control unit.

It is normally a small squared looking grey plastic thing that should be in the end of a wire connector, and that is the only thing that will on the end of that wire connector, and it is basically just a jumper plug. Here is a similar image of what you should be looking for.

Have you pulled the sparkplug wire off the #1 plug. and use a spare plug into the boot. Becareful at this point it will shock you. Turn the car over and see if there is a spark created from the spare plug. The Silverado's have a few fuseable links they are inline of certian wires. You might have a bad fuseable link. You also need to check Grounding points and ground wires. If they are rusted or broke it can prevent your system from making a complete circuit . Time to chase wire with a voltage tester. checking sections of wire at a time. with out being there to look over the system. That are a few suggestions.

Testing the coil packs.

1. Get an INSULATED wire and hook it to a ground on the car.
2. Get some one to help you
3. pull a spark plug wire off the coil
4. hold grounded wire close to, but not touching, the part where the spark plug wire connects
5. keep hands away from coil and have your helper turn the engine over ( start car and turn off)
6. if there was a spark between the wire and the coil pack it is good. if not, the coil pack needs replaced
7. replace the spark plug wire
8. test the rest

the spark unit is shorting out to system ground. remove the spark unit and look carefully at where it is mounted and look for small cracks in the electrical insulation material that was poured into it at the spark unit factory. if water gets into this area, havoc occurs.