I got no spark won't start. 93 1500 Chevy truck 4.3 motor
How long since a tune-up?
Check for applicable trouble codes, if there are any? Your obd 1, you should be able to check for some codes, if the mil still works.
Check primary voltage at the coil, pink wire, key on. Use a test light to check for voltage.
The spark plugs--plug wires--dist cap and rotor all good? Does the rotor turn when you crank it? If you take coil wire loose from distributor cap and hold close to engine ground, have helper crank it, do you see a spark jump? I don't know what testing you have done?
With bypass ignition it's the ignition module that controls spark during cranking. With the coil itself, key on, should be voltage on both sides, if only one side, the coil is faulty. The ground for the coil should pulse, with engine cranking. I'm sure I've left something out? You need to do some testing.
Apr 17, 2016 |
Cars & Trucks