Car will urn over but will not start. could this just be a spark plug or could it be my ignition module? do you know what a ignition module looks like for a 1986 chevrolet spectrum?

Could be a problem with your ignition system. So you would not be getting spark at the spark plugs. How-to videos everywhere on how to test for spark. If you have no spark at any of the cylinders, then suspect the "ignitor". This little module is what controls the ignition coil on the car, giving you a spark to a spark plug at the right time. Could be something else, too, like the coil, but you could have the ignitor tested for free at any parts store. (On American cars, this module is known as the Ignition Control Module, or ICM.)

Look at the ignition system. Is there a spark at the plugs? Do NOT check the #1 plug to verify spark. Then work your way back to the ICM (ignition control module) Check fuses.

Ignition module is controlled by the engine computer and controls how the spark is timed to engine performance.

A bad module would not produce spark at the plugs.

Sounds like the computer is dead, or not getting a signal from the crank sensor.
Can you check the crank sensor with a meter, or use a scanner to check data input to the computer ?

Hi,
Depending on how often this occurs it sounds like you have a ignition module or coil overheating problem.

1. Check spark plugs, if they are worn replace them immediately. Excessive gap in spark plugs will cause other areas of the ignition system to overload with heat and start cutting out.

Try too get this done asap due to the difference in replacement cost of 4 x spark plugs $ 12 - $ 20 and the cost of a ignition module $ 200 - $ 300. Hope this helps, let me know how you get on.

Make sure it is not firing.Since you installed the ignition module,the plugs may be fouled out by fuel.If so,replace the spark plugs,and it will start.If there is no spark,the stater in the distributor will be the most likely problem.The stater is the other part that goes out,if the ignition module doesn`t.I hope this helps,let me know if I can help you any more.

ignition timing or valve timing?

ignition timing not setable.

info:
The ignition system consists of an ignition coil, spark plug wires and spark plugs.
The crankshaft position sensor signal is the basis for ignition timing calculations. The alternating voltage signal from the crankshaft position sensor is digitized by the powertrain control module. This digitized signal is then used to position the closing time of the primary circuit of the ignition coil.
Ignition angle is determined by the powertrain control module in response to engine operating conditions. Once ignition angle has been determined, the powertrain control module interrupts the current to the primary circuit of the ignition coil thus triggering the ignition spark which is supplied to the cylinders through the spark plug wires and spark plugs.
The ignition coils are triggered by the powertrain control module in pairs (cylinders 1 and 4 and cylinders 3 and 2) sending one ignition spark to the firing cylinder and one ignition spark to the corresponding cylinder on the exhaust stroke. This make sures that any unburnt fuel residues remaining in the cylinder on the exhaust stroke are re - ignited to provide cleaner exhaust emissions.
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Does it got a distribiter or does is it have a coil pack.I'm thinking an distribiter with 4 spark plug tirminals,I would look into the Ignition Control Module if it has one.I looked at a parts listing for the car and it shows it has one but looked at a Typical Ignition System Schematic and it doesn't show the igniton control module in there.But i would think it is needed to control the spark.I would look into it and see if there is one,if there is i would test it that would be my guess of what's causing no spark.I got a pic of the ignition control module and theTypical Ignition System Schematic for you.

Hope it helps




Ignition Control Module

it could be the ecm"computer" that can cause know spark and know gas at the same time.

i know what your problem is....its a ford!!!!