Could be as simple as needing a tune up with spark plugs, spark plug wires, distributor cap and rotor, air and fuel filters.
Bad coil Bad rotor
That would be .035 in.
I've heard that a bad chassis ground in the anti theft system sometimes caused this
Its the fuel pump
Need to replace the ingnition module in the Distributor.
Why would you want to unhook the Electronic Spark Timing?
Does it have fuel/spark/compression?
I would replace the ignition control module that's in the distributor.
Perhaps it was hit by a meteorite. Check for fuel and spark.
It is probably in need of new spark plug wires.
I had this problem when it rained. It would help if you gave more info. Check ur ignition cables/spark plugs. keep 'em clean and dry of moisture.
IF IT IS A 4 CYL YOU PROBABLY HAVE A BAD CRANK SENSOR OR IGNITION MODULE.
I would replace the ignition module in the distributor.
I would replace the ignetion module that is in the distributor.
The ignition module that is in the distributor is probley bad.
If you are using the original points distributor, the gap would be .035".
i would change the spark plug wires
The only time I've seen cracked spark plugs was putting them in or taking them out with the socket not perfectly straight.
Spark plugs, wires or timing off
mabey bad plug wires or plugs....or rotor in the distributor...but im 16 what do i know
A/C plug # R45TS and it gaps at 0.045 That is the factory plug.
Reasons why a 1987 Chevy Celebrity might not have a spark: 1. The crankshaft position sensor has failed. 2. The ignition module has failed. 3. The engine computer has failed. 4. There is a wiring problem. 5. It could also be failed coils, but I would not expect all three coils would fail at once.
It would help to know what year and vehicle the engine is in, but the source I found said the gap should be .040" for a Chevy 4.8 engine.