1996 Chevy Blazer starting

1996 CHEVROLET BLAZER
114,300 MILES • 6 CYL • 2WD • AUTOMATIC
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MMOOSE
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  • 1 POST
my blazer wont start sometimes. this time i tried for half an hour so i left it. i changed the fuel filter, which helped for a couple weeks. i gave new sparkplugs, bleed transmission and brake fluid, took out an alarm that had cut of the engine until i removed it. when i turn the key to on, i can hear humming under the car and a fast quiet clicking behind the dash/under the hood by the carborator.(i hope its called the carborator)both the humming and the ticking only last for about 5 seconds or so. about as long as the long beep that every car makes when the key is in first put in the ignition. the battery is brand new, i have all my lights and power. the engine and the car runs fines when i do get it started and drive it. there is no other noise when i turn the key to start it. ohh! sometimes if i hold the key down/forward, it"ll suddenly start... after10 seconds or so of holding it there when trying to turn it over. i dont do it often though. please help.i need to at least get it started to take it to trade it in tomorrw. please and thank you
Dec 8, 2009 at 2:14 PM
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JDL
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  • 16,098 POSTS
welcome to the forum, are you saying the starter won't even crank? If so, I'd have to make sure the battery has a full charge and the connections are good. Next, I'd check voltage circuits at the starter relay and crank fuse. Any testing, make sure the tranny is in park or neutral and the e-brake is set.
Dec 8, 2009 at 2:54 PM
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RASMATAZ
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Do below might lead you somewhere

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine -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,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
Dec 8, 2009 at 2:54 PM
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