SOURCE: Astro vans that won't start if it's damp/raining outside
I have a 2000 Astro had the same troubles.I saw that the sides of the coil were burned looking.In between the bar that goes around it. This started around 110K It would run badly when wet or high humidity.Then throw up the check engine lite.Put on a new coil so far the problem has no reocured.
SOURCE: 2000 Chevy Astro van rear ac
astro van 2000 rear a/c switch
large orange power 13.8 volts pin G
small orange pin A
blue pin B
not used pin C
not used pin D
gray pin H
yellow pin F
black pin E
SOURCE: location of the camshaft sensor on a 2000 chevy astro van
The sensor is in the distributor you can get it out with out pulling the distributor but its tight and has to be perfect .... pull the cap off and then the button youll see a sensor under a metal cup looking thing with a wire harness coming out of it i believe you need torks bits for the whole job if you go to any parts store and buy one then pull the cap this will make more sense.
Good luck and hope this helps.
SOURCE: 2000 astro van running bad
gm has a tecnical service bulleten out it affects all astro s and blazer s remove distrbuter cap and rotor clean out breather holes in base of dist 2 total replace with new cap and rotor 70dollars for both moisture builds up in dist cap causing the problem.
SOURCE: need firing order and distributor
1-6-5-4-3-2
number 1 is the front Cyl on drivers side.
then it is #3 #5
Passenger side is #2 #4 #6
#1 on distributor cap is the front side of cap next
to the hold down screw clockwise side of the screw.
Firing order goes clockwise looking down on the distribuater.
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