Posted by s.crum on December 04, 2011 at 07:48:28 from (67.142.182.25):
Hi Folks, Any Chevy electrical experts? I bought this Lumina last Monday as a replacement for the Escort favorite son rolled over. Real nice running car MOST of the time anyway. Every so often the engine will be hard starting and run rough. I have a new fuel filter to put on this morning. When I moved the car to the garage it started hard and ran rough. Now for the quirks. The doors locked seemingly for no reason and the headlights flashed almost like something lost contact for a second. This is leading me to believe maybe there's a ground problem somewhere. I've taken the ground cable off at the engine and cleaned the battery ground cable end and the smaller wire end at the engine connection, this wire goes into the harness and presumably into the passenger compartment. I also cleaned the ends at the battery AND the wire off the negative terminal that is lugged to the core support. also cleaned the ground wire ends on the core support that I assume go the the front lights. NOW my big question, are there other pertinant grounds that arn't readily apparent? ie: at the ECM or BCM (where the heck are these in this car?) I figure I'm going to take care of the simple things like filters and making sure things are clean and tight before I get to crazy with repairs. This car is in really decent shape especially for a car from New York State (no offense New York guys but your emissions standards are chasing nice cars south)! Thanks for your help.
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