HELP Please No Spark
Thread Starter
Intermediate
Joined: May 2017
Posts: 27
Likes: 0
HELP Please No Spark
1989 C-4 No Spark.
Replaced the Ignition Control Module, No Spark.
Replaced the Coil, No Spark
Replaced Cap & Rotor, No Spark
With ignition on checked voltage to the distributor cap BAT 11.50 volts.
I think I did this right, with key off, removed distributor cap & rotor, discounted coil pick up connector from module attached ohm meter to each terminal got no reading, then individual terminal with one lead and other to ground, still no reading on meter.
I have no idea what to do now. Need help??
Replaced the Ignition Control Module, No Spark.
Replaced the Coil, No Spark
Replaced Cap & Rotor, No Spark
With ignition on checked voltage to the distributor cap BAT 11.50 volts.
I think I did this right, with key off, removed distributor cap & rotor, discounted coil pick up connector from module attached ohm meter to each terminal got no reading, then individual terminal with one lead and other to ground, still no reading on meter.
I have no idea what to do now. Need help??
Intermediate
Joined: Mar 2021
Posts: 27
Likes: 0
Stump the HEI experts? Weak /no spark
I'd like to play "stump the HEI experts" here. I have a '82 454 that died while running fine going down the highway. I had the coil go bad about a year ago, so I immediately replaced the coil, (with no improvement, engine will not start) . I have 2 spark testers , one is a Harbor Freight conventional testerl, I'll refer to it as the Harbor Freight tester. I also have the correct HEI spark tester (resembles a spark plug with no ground electrode and has a alligator clip on the ground), I'll call it the HEI tester. I get spark at the plugs and the carbon button (coil secondary) inside the distributor cap with the Harbor Freight tester, and nothing with the HEI tester. I put a volt meter on the Batt input to the distributor, and get 12V with the key on, drops to ~10V when starter cranks. I put a trouble light between the Batt and Tach inputs to the distributor, and get a blinking light when the engine cranks. This would seem to indicate to me that the coil is bad, but I replaced it. Anything I'm missing here? Its got me stumped. I'd appreciate any insight. Thanks!
Racer
Joined: Jul 2012
Posts: 383
Likes: 86
From: Northeast Ohio
@sc4ram, you have posted to a thread from 2017. I recommend that you start your own/new thread in the future...will probably get a better response. Also, you posted to a thread that is in the C4 area.
