I sincerely apologize for the late response...Due to the bad economic situation this site has had a substantial (+50%) increase in the number of questions being asked in the last four months.
I am not sure if you have the 1/2, 3/4 or 1-Ton model.
Also Not sure if you have the 4.3L, 5.0L, 5.7L or 7.0L Engine. However I have included all below.
For the 4.3L (6cylinders):
Firing Order:
1-6-5-4-3-2
Cylinders:
6------------5
4------------3
2------------1
(front of vehicle)
Distributor:
coil wire-->
-----6------->............<--------5-------
-----4------->............<--------1-------
-----2------->............<--------3-------
............(front of vehicle)
For the 5.0L AND 5.7L AND 7.0L (8-cylinders):
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
8-----------7
6-----------5
4-----------3
2-----------1
(front of vehicle)
Distributor:
coil wire-->
-----6------->............<--------5-------
-----4------->............<--------3-------
-----2------->............<--------7-------
-----8------->............<--------1-------
............(front of vehicle)
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at FixYa.com!
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These details will help.
Thanks.
http://howtobyme.blogspot.com/2011/12/car-crankshas-spark-but-will-not-start.html
------------------------
The spark plug firing order for car?http://schematicsdiagram.blogspot.com/2011/06/spark-plug-firing-order-for-car.html
----------How to gap spark plug ?http://technoanswers.blogspot.in/2012/02/how-to-gap-spark-plug-on-chevy-impala.html-----------Spark plug Replacing for?http://technoanswers.blogspot.in/2012/02/spark-plug-replacing-for-chevy-impala.html
-----------How to identify number one spark plug on the distributor cap?http://schematicsdiagram.blogspot.com/2011/12/how-to-identify-number-one-spark-plug.html
---------How does the spark plug wire go on the distributor cap?http://schematicsdiagram.blogspot.com/2011/12/how-does-spark-plug-wires-go-on.html
---------Spark plug Firing Order Diagram?http://schematicsdiagram.blogspot.com/2011/12/2006-suzuki-forenza-spark-plug-firing.html
-----------This will help.Thanks.
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What size engine is in the van, and I will need the eighth digit of the VIN of the van. Thanks from Daniel.
What engine?
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