dropped82deville Posted September 30, 2008 Report Share Posted September 30, 2008 well anyone out there that may know this problem that i have. my car failed smog due to my ignition system being faulty. so i replaced the sparkplugs (in which i found the old ones were bad and gapped at .075 when they should have been gapped at .060.) oh by the way i have an 82 cadillac coup deville with the v8 4.1L. then i replaced the sparkplug wires and then i replaced the distributor cap and rotor. my mistake was not labeling the distributor cap as i should have. any help please??? i am stuck right now until i am able to get my car going. oh and all it does right now is crank and back fire through the carb. Link to comment Share on other sites More sharing options...
Texas Jim Posted September 30, 2008 Report Share Posted September 30, 2008 You have some of the wires crossed. Wrong wire going to the wrong plug or to the wrong hole in the distributor. Do you have the firing order? If not... it is stamped on the intake manifold. I don't know the firing order of your Cadillac, off the top of my head.... but on the manifold it will look something like this.... 1-5-4-8-6-3-7-2 Put the wires in the right place and it should cure your backfiring. Link to comment Share on other sites More sharing options...
Ranger Posted September 30, 2008 Report Share Posted September 30, 2008 http://autorepair.about.com/library/firing...bl-fo-14543.htm or http://autorepair.about.com/library/firing...bl-fo-14544.htm Link to comment Share on other sites More sharing options...
BodybyFisher Posted September 30, 2008 Report Share Posted September 30, 2008 Always pull ONE wire at a time NEVER all of the wires. I had a friend do this when we were kids, he called me in a panic. As Ranger noted, its, 1-8-4-3-6-5-7-2 from a counter-clockwise rotation starting at the ignition hot-wire side of the cap terminal Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
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