1991 Astro

The next step would be to check for spark.

Their are three things that fires it up 1:gas 2:spark 3:compression.

There are different ways to check for spark, heres one way.

Pull a spark plug wire and take a screw-driver and place the metal part into the plug then take it and place it near bare metal on the fram or engine, but don't sit the wire and driver on the metal. Next while you watch the plug have someone turn the car over watch for a blue spark from the frame to the driver. If you don't see it then theres no spark at the distributer.

You must then check the the coild pack and next the ecm (electronic control modual)