Question about Cars & Trucks
Check power and ground at the coil. If there, look up how to check the coil. I know how, but I also need to know the resistance values. If the numbers are within specs, suspect the ignition module. Parts stores can, or used to able to check them.
Posted on Dec 04, 2016
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Posted on Jan 02, 2017
SOURCE: '91 Blazer won't start
then the problem lies in your ignition relay. even though your rotor is spining there is no current to energize the coil. when you turn the key the relay closes and allows the voltage of tha battery to flow and energize the coil.
Posted on Apr 19, 2009
SOURCE: no spark 350 chevy tbi
You need power on both sides of the coil with key on engine off. With test light on neg side of coil you should get flashing light with engine cranking. No flashing indicates no trigger from ign module. No flashing can also mean the pick-up is faulty. To check pick-up dissconnect from module and use analoge meter set on ohms.Check meter movement during crank. If o/k check rotor for burn through.and change module.
Posted on Apr 23, 2009
check the insulator for carbon tracking down the boot. this was not an uncommon problem for these cars. also check porcelain for cracks and these plugs should be either ngk or nd.
Posted on Jan 07, 2010
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