hey, i own a 1970 cadillac sedan deville, that runs like a champ except for that it cuts out on the road. it shuts itself off, but not totally off, it almost sounds like a desiel pickup when it does this. the generator light on the dash comes on while its doing this (it was the oil light for alittle bit until it moved to the generator light). sometimes it backfires and is running good for a few minutes, or it will shut off altogether and you have to restart it. at first i thought it was a bad ground, so i replaced the battery ground cable, and put a ground strap from the altinator to the frame of the car. that still hasnt fixed it. now i'm thinking it might be the coil, but i'm not sure. any help would be greatly appreciated!
I had a similar problem in my '77 Chevy. I was running a Mallory Unilite distributor in there which uses an electric eye to fire the plug. That problem drove me crazy for months until I figured out it was the electric eye that was shot. I replaced the distributor to a more conventional type of HEI that uses an ignition module.Never had the problem again. Your module can only be checked with special equipment( I believe) but that could be the problem. Either have it checked or price a new one and just replace it to be sure. A problem like yours can be so many things you'll just have to keep checking different things until you come up with it. Your "GEN" light and oil light will come on because the engine stopped and can't turn the belt to run the Alternator, so with no charge coming out of it the light comes on. It happens with a very loose belt also.Same with the oil light. No spinning engine to turn the oil pump, so it senses no oil pressure and warns you. Good luck...
Automobile(s): 1968 Cadillac Sedan deVille, 1994 Chevrolet G20
Bucks County, PA
Re: electrical problems. HELP!!!
At this point, i'd only upgrade to HEI if thats the setup you prefer. As far as ignition goes, check the points, condensor, cap and rotor. If they are adjusted properly and in good working order, you should be fine. When the generator light comes on, does it suddenly pop on, or does it flicker first and then come on solid. If it flickers, I would suspect something else causing the engine to stall, probably due to too low of an idle.
Didn't realize you had a points distributor in there, so my module theory is moot. We've upgraded a couple of points style ignitions to HEI with conversion kits. It's cheaper than a whole new distributor but the distributor should be in good working order.( no loose shaft or bad advances). I'm considering doing it to a '53 Dodge 230 flathead that we have in an M37 Powerwagon. We used the Crane system in a '70's MG and were very happy with the results.
hey, i just put a new rotor and cap in the distributor along with new spark plugs and spark plug wires about 3 weeks ago. the light comes on, it dont flicker or anything, sometimes it will pop and kick itself back to normal and it will work fire for a few minutes...just recently it has started to do it when it was just idling. before it would just do it going down the road.
hey, i havnt changed the points or condensers yet...i had my boss look at them and he said they were fine, but i'm thinking they havent been changed for a couple years so i suppose its time to replace them. i'm goin to try that carb thing also, because it might just be cloged and restricting fuel, maybe.