1992 Chevy Blazer ENGINE WON'T START AGAIN AFTER IT'S BEEN

1992 CHEVROLET BLAZER
18,000 MILES • V8 • 4WD • AUTOMATIC
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TERI9820
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My engine won't start up again right after it's been running for awhile. It will start again after it cools for about 45 mins.I changed the starter thinking it was probably the solenoid,but it still does it. I now thinking that maybe it's the ign switch. Any thoughts?
Jun 24, 2010 at 3:12 PM
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RASMATAZ
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Lets do below for a start to determine if its fuel or spark related issue and get back with some results

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
Jun 25, 2010 at 1:50 AM
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TERI9820
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I also have been noticing that my ignition key is quite warm when I remove it from the cylinder. I forgot to mention this yesterday. :)
Jun 25, 2010 at 1:08 PM
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RASMATAZ
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Could be the ignition switch is failing get it tested
Jun 25, 2010 at 1:56 PM
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