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tdawglp 06-29-2011, 06:40 AM my elky drove fine all day yesterday then i get home and turn it off and then 10 min later turn back on and it fires and rev up for a 5 sec and then shut off now i dont have a spark i clean the distributor and check the fuses HELP!!!!! until i figure it out ill keep on tearing stuff off and cleaning it :nanawrench: darbysan 06-29-2011, 08:20 AM Sudden breakdown like this leads me to check the Electronic Module in the distributor. Most Auto parts stores can check them for free. Make them check it at least 3 times, as it is the heat that causes the failure. If it is bad, be sure to use heat sink compound when you re-install it, or it will fail again. tdawglp 06-29-2011, 08:23 AM are you talkin bout on top of the distributor its HEI? darbysan 06-29-2011, 08:41 AM are you talkin bout on top of the distributor its HEI? Inside the distributor, under the rotor, is the Electronics Module. Screwed to the dist with 2 screws, IIRC. Problem could also be in the Coil that is in the top of the distributor. I think the Store can check that as well. Be sure that the ground strap on the coil is attached ( under the coil cover). No ground on the coil will fry the electronics module. 1983SS454 06-29-2011, 09:59 AM HEI modules, gotta love them... They can go bad as quick as the snap of a finger with no good reason why goodcruiser 06-29-2011, 10:32 AM Take a look at the carbon lead that connects the coil to the rotor inside the distributor cap,it may have worn off. tdawglp 06-29-2011, 11:50 AM thanx guys ill let ya know what they tell me tdawglp 06-29-2011, 11:52 AM OH AND I NOTICE ALOT OF BLACK DUST NEAR THE CENTER OF THE CAP WHERE THE HOLES AT FOR THAT ONE PEICE :dontknow: tdawglp 06-30-2011, 08:41 AM advance tested coil it checked out good they said they couldnt check module evryone i talk to say that you can test them though tdawglp 07-01-2011, 10:38 AM and i have a 8364 ignition module and i cant find anyone who has it goodcruiser 07-01-2011, 12:05 PM Does this help? http://www.oreillyauto.com/site/c/search/Ignition+Module!s!Control+Unit!s!Ignitor/02801/C0334.oap?make=Chevrolet&model=El+Camino&year=1984&vi=1042692 These are for the 305ci engine if you have a V6 you will need to to revise the search. tdawglp 07-01-2011, 06:10 PM mine is like a half moon shape computer chip with three wires that go out of the distributor tdawglp 07-01-2011, 06:14 PM http://www.summitracing.com/parts/MSD-83645/?rtype=10 looks like this except its three wires darbysan 07-02-2011, 07:12 AM 8364 is an old MSD part number. It has been superseded by 83645. http://www.speedtalk.com/forum/viewtopic.php?t=8716 EZFrank 07-04-2011, 04:54 AM check your cap i know mine the center of the cap has this nipple mine was wore out new cap and fire right up. steelybill 07-04-2011, 07:53 AM Also, the pick-up coil, that has two wires running to the module. It can be checked with an ohm meter for continuity. tdawglp 07-04-2011, 08:56 AM well is there anyway to test the module i would like to make sure its is bad before replacement tdawglp 07-04-2011, 10:13 AM steelybill is there a number amount that should be seen when checking the pickup coil JJLT1 07-04-2011, 01:31 PM looks like 83645 is superseded by 83647 now..:texas: http://www.msdignition.com/Products/Ignitions/Circle_Track/Road_Racing/83647_-_HEAT_HEI_Module.aspx cant find any testing procedures for the module @msd,,its probly a little different than a stock one.. msd says send it in,,they will check it.. for the pickup,,as long as you dont get a open reading,,and its not shorted out,,its probly ok.. steelybill 07-05-2011, 12:48 PM A friend had some problems with MSD stuff, and called them. He said they were great to deal with. tdawglp 03-08-2012, 08:37 AM i just wanted to finish this forum up with a conclusion i had to buy a new distributor the center part of the old that rotates off the cam was bad. I paid 50 dollars for a new decent one and changed all my msd stuff over to it that would fit thank yall for the help | ||