Help...89 S10 blazer won't start
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TECH Junkie
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Joined: Mar 2002
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From: East Brady, Pa
Help...89 S10 blazer won't start Not sure if this is the right place or not but...I have an 89 S10 blazer that won't start. It cranks over but that's it. I replaced the fuel filter and checked the fuel pump while I had the line off and it's pumping fuel. Any quick checks I can do before calling the garage?
Re: Help...89 S10 blazer won't start I would check and make sure you are getting spark. Check all ignition wires to the distributor and make sure they are getting a good connection. Any chance theres water in the distributor? If so, take an air compressor hose and blow it out. Just my 2 cents. Good luck!
Re: Help...89 S10 blazer won't start Battery sounds okay since its turning over. You checked fuel and that appears okay. As the other folks mentioned, I'd check spark. Could be a dead coil or something similar. Pull off a plug wire, bend up a paper clip so one leg is straight, and insert it into the boot. Carefully (so you don't get zapped 
) hold the boot/clip close to a metal ground (engine brackets seem to work well) and have someone crank the engine. You should see a fat blue spark jump from the clip. If its a weak orange spark or nothing at all then chase it back to the coil from there.
) hold the boot/clip close to a metal ground (engine brackets seem to work well) and have someone crank the engine. You should see a fat blue spark jump from the clip. If its a weak orange spark or nothing at all then chase it back to the coil from there. 
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Joined: Jan 2002
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From: Earth
Re: Help...89 S10 blazer won't start I would suggest pulling a plug too. They might be all fouled up or something since it's an old vehicle. Does it have a manual tranny? You could always try push starting it.
Re: Help...89 S10 blazer won't start Check the throttle body injector, that it is spraying fuel while cranking. Check the coil wire for spark, Then check a plug wire for spark. 4 or 6 if you got injector pulse & no spark 99% of the time it's the ignition module.
