You need to check the engine control module (ECM) for fault codes, you can do this by going to the link and following the instructions there. FAQ How to read older GM codes for free
SOURCE: Chevrolet Blazer S10 1993
i recomend getting a book from the auto parts store. it will have all the electrical diagrams. it costs less than $20.00 and will be a good investment. i have a book for all my cars and have never had to go to a shop.
SOURCE: Removed & replaced dist. cap and rotor on 1993 S10 Blazer 4.3 V-6
The firing order for a Chevy s10 depends on which engine you have. 1.9L engine the firing order is: 1-3-4-2 . Distributor rotates counterclockwise. 2.0L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.5L engine the firing order is: 1-3-4-2 . Distributor rotates clockwise. 2.8L engine the firing order is: 1-2-3-4-5-6 . Distributor rotates clockwise. 4.3L engine the firing order is: 1-6-5-4-3-2 . Distributor rotates clockwise.
SOURCE: I have a chevy blazer 94 S10 still quit on the road.
How is it running before it quits onyou. This could be the culprit of an egr valve. How many miles on thevehicle. The egr seems to die on a certain mileage pattern. Also youcould start by cleaning the egr valve before replacing it. This couldvery well help the situation, but this is just a guess. Hope thishelps!!
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