how do i test the ignition coil on 2002 s10

Asked by Nov 07, 2012 at 10:15 AM about the 2002 Chevrolet S-10 3 Dr LS Extended Cab SB

Question type: Maintenance & Repair

3 Answers


Check the resistance of the spark plug nipple - nipple and on the bottom check resistance between the two openings for the control module. While you look that up I'll dig into my old college notes to see if I can't find the specs. I do recall its something like the control module consists of 2000 windings of a wire and the spark plug side is 200,000 so the spark plug end will be significantly more resistant.


My notes must be at my dads house. I did however find this and instead of just posting the numbers I figured I would least you read. I know its a honda site but a coil is a coil is a coil, no matter who makes it, there is only 1 way to make a transformer/coil. spark-plugs/IGNITION-COILS.htm


you could try putting a spark plug on the coil wire. then crank the truck over while watching to see if it sparks. no spark check to see if the coil has power

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