Check the coil and replace if bad. Should fix the problem.
That year did not USE a Crank sensor.
probably misaligned your crank sensor.. I'm dealing with the same problem, might need to replace with new and make sure to gap properly.
The crank position sensor On your astro is located on front of the engine on timing cover, left side. Behind the crankshaft pulley. with a connector of 3 wires.
Do you have a 4.3L with a distributor? If so, the crank sensor is in the distributor and may also be called an HEI pickup or Hall switch.
Have you replaced the cam and/or crank sensor?
front of the engine under the crankshaft pulley
It should be at the bottom front of the engine by the timing cover.
Check for power to the sensor. check for power and ground to the Ignition coil. If the crank sensor is adjustable, make sure that it is set to the proper gap.
Mine went at 38,000 miles, seems to be a commonly replaced part.
no no no my crank sensor when out on my truck ar 95k now i have 125k and she is still running good
Not as such. All fuel and spark timing signals are picked up in the distributor.
Happened to me to and need a crank sensor also!?