I have answered the question myself by accident. I replaced the 2 wire harness from the coil to the spark module in the Distributor. The one wire from the B terminal on the Coil to the + terminal on the Module had a butt splice in it from a previous owner and that connection came loose and was covered with a shrink tube and could not be seen.
Smoke283
If it cranks, first confirm spark present
An engine which cranks but will not start is not receiving enough fuel or has no spark. A clogged fuel filter or bad spark plugs often cause this problem.
The problem is in spark, or fuel. Rarely the Crank angle sensor. ECU could be going bad too.
Check engine compression Check engine timing
Several problems can cause a 1999 Blazer not to start. There could be a fuel problem or a firing problem. Check for fuel pressure and ignition spark first.
The problem needs to be present to trouble shoot it. If guessing is your preference, the garage will provide you with good guesses. But it could get expensive. My guess is a module that would control spark.
you need a new batteryA Different AnswerIf the engine cranks, then the battery is not the problem. Inspect the spark plug and clean/replace and gap to specs. If the spark plug is okay and has a good "fat" spark, then the problem lies in the fuel system. The fuel filter may be clogged and not allowing the fuel to reach the combustion chamber, or the fuel float may be stuck closed.
No you were driving and it quit.and if it cranks it is turning over. check for spark at the spark plugs and also for fuel pressure at the injector rail.
If your Honda CRV cranks but won't turn over because the spark plugs are not getting spark, ensure the wires are connected. A loose spark plug wire can cause this issue.
Check all of your fuses both in the fuse box in the van and under the hood.
Fuel? spark?
Spark plug gap chevy ls blazer