No spark at plugs?

Electrical problem
1992 Chevy Blazer 6 cyl Four Wheel Drive Automatic 150k miles

Just turns over, will not fire. Getting gas, not getting spark. Checked the terminals on battery, ground cable at block and body. Nothing happening at the coil. Have had similar incidence on a full size van, but it was a bad ECM. After changing coil, checking numerous fuses. Your insight is greatly appreciated.

I appreciate your feedback, but, if it won't start, how am I going to check it at autozone?

Ahh, ok. Didn't know it was a part that could be off the vehicle to be tested there. Will do that, and be back in a few. Again, thanks for your help.

I fig'd out the problem. The cathode on the coil broke internally. Wasn't allowing power to it. Replaced that, runs superb. Thanx for all your insight.

Electrical problem
1991 Chevy Blazer 6 cyl Four Wheel Drive Automatic

I have a 1991 Chevy Blazer with the 4.3 vortec motor and have no spark. I am completely lost I have replaced plugs, wires, cap, rotor, ignition module, coil and still no spark. What else could it be? What am I missing? Please help.

Ok put a new pick up coil in and nothing changed. What next.

Getting fuel to carb but not thru to electronic injectors, no spark also, but have replaced distributor, pick up coil, coil pack, cap and rotor, control module, wires, ignition module, but still no spark or fuel, has plenty of cranking power but no spark or fuel to go?

This one is easy for me to help you with.
No fuel and no spark usually means the fuse is burnt.
Also you may have to crawl underneath and check the wires to the pump very close. Even way up in the sheilding, (the black cover over the wire groom). There are also relays in the back of the glove compartment that you can check with a meter for continuity.
Also check for leaks on the intake where the fuel lines come in. If your fuel pressure isnt high enough, the onboard computer will not allow the engine to have fuel or spark, a saftey thing to keep ya from burning up. LOL
You can purchase those little O rings in kits to stop the leak if you seen a leak. After replacing the O rings and the other afformentioned things are done, just undo the positive battery terminal for 10 to 15 minutes to allow for the onboard computer reboot to initialise and then everything should be restored if all is well.

Checked the Coil and it has no fire. What can I do next?

I will try to make this as clear as possible. I have an 89 s10 blazer V6, 2WD, 4.3L, TBI. The engine cranks bu no spark from the coil. First I checked for battery voltage both at the coil and at the distributor which I do. Then I checked both the coil and the distributor with the multimeter and both parts seem to be good. Now I am lost.

One side of the coil has 2 wires on it, red(or pink) and white and the other side is where I should get the spark. Now I said I have 12 volts on the red wire but I DO NOT KNOW WHAT THE WHITE WIRE IS ON THE COIL. The wiring diragram shows red from ignition switch, then to the coil, and then to the distributor, and the the white wire is coming from the instrument cluster, to the other side of the coil(same side for spark), then to the distributor.

What am I missing? Is the white wire the problem?

I can also be emailed at drewryjams@yahoo. Com
Thanks for your time in advance.
Joe

My Truck will turn over but i'm not getting any spark. I Replaced the plugs, Wires, Cap, Rotor & Ignition Moduale. The Module is what I thought it was but I still don't have a spark.

I have volts to the coil but no spark. There is also no spark to the #1 Plug wire. I also have volts to all plus of the module.