Question about 1991 Chevrolet K2500

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1984 Chevy Van 305, V-8 No spark, will not fire

No spark, will not fire, how do we change the coil on this there is no wire, it's on top of the distributor

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Remove the cap and the rotor. Look at the under side of the rotor where the shaft goes into it--if there is a white spot, it indicates an internal short from top to bottom of the rotor. Replace the rotor. Hope this helps!

Posted on Jan 31, 2010

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Firing order for a 305 is 1-8-4-3-6-5-7-2. The distributor turns counter clockwise and #1 should be the 5 o'clock position looking down at the top of the distributor.

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Here is the firing order for the 1994 Chevrolet Lumina APV Van with a 3.1 Liter engine with a distributor, and the 3.8 liter engine had the coil packs, and let me know if you need any help to understand this diagram, or if you require any further assistance.


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Firing order on a 305 on the cap. Got the wires all messed up...


This method is good for the firing order on all chevy small block v8 engines from 265 cubic inches to 400 cubic inches. This would include 265, 283, 305, 327, 350, 400 cu. in. chevy small block v8 engines.

Let's cover some safety concerns first. If you try to troubleshoot a mixed up firing order with the engine running, you could be in for a serious shock,.. literally. You can do it, with certain precautions, but you really don't need to check the firing order with the engine running. You definitely don't want to try checking the firing order if you are wearing any kind of pacemaker or sensitive electromechanical prosthesis. The voltage coming out of the ignition coil is in the thousands. Common sense dictates that you wouldn't stick a knife in an electrical outlet, so you wouldn't want to take chances with being shocked by the electrical discharge from your classic chevy's ignition coil either. See the diagram:


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The firing order, which should be cast into the intake manifold, for the chevy small block V8 is 1-8-4-3-6-5-7-2. The firing order is the numerical sequence in which the spark plugs are fired. The insertion position of each spark plug wire around the circumference of the distributor cap can be found according to a clock face. The insertion sequence determines the firing order. The firing order is followed clockwise around the distributor cap starting from the 6:30 position with the 6:30 position being the number one cylinder spark plug wire.

On classic chevy small block engines that use ignition breaker points instead of electronic ignitions, the number one cylinder is the one immediately clockwise of the small metal sash cover on the distributor cap. The firing order starts here. There is no sash cover on the distributor cap for GM HEI electronic ignitions, and the firing order is the same, but starting at the 5:30 position.
The firing order makes sense if you know how the cylinders are numbered. The number one cylinder is the front most on the drivers side and 2 being the front most on the passenger side. From front to back, the cylinders are odd numbered on the drivers side, and even numbered on the passenger side.

Additional details HERE.

Hope helps (remmeber rated this).

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1984 dodge van has power to the coil but not from the distributer, and it doesnt start. van ran fine until the positive post came off while driving down the road, it just died and hasnt fired back up...


Does the coil produce voltage? I know it has power to it, but is it throwing voltage? if so check the coil wire at the distributor. if power is reaching the distributor but not throwing spark from any plug wires, your problem is a bad rotor and or cap. Or bad wires.

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It has steadily been getting harder to fire over---Today it won't fire --in past year ,I have changed fuel pump,filter,coil,crank & camshaft sensor,plugs,wires-It has fuel in the line (it squirts out...


try setting the distributor even tho they are controlled by a computer and spark is advanced or retared by the computer if they get 10 degrees or more out of time they cant correct it and start hard or a no start issue. Turn the engine to top dead center on 1. I figured out that the notch on dampener lines up with notch on the block. mark the direction the rotor is facing and when you put the cap on, adjusted the distributor so that the #1 terminal is dead on with the rotor (follow the raised area on the cap from the #1 plug wire and this will let you see where the #1 terminal lines up). one other thing it could also be is the module on the distributor but if you have spark it shouldnt be that

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Yes those are the next step, especially the coil.

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computer coil power try to disconet the spout wire..... its under the hood by passenger firewall ....... its a brown wire or behind the glovebox

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