1993 Cadillac El Dorado V8 Front Wheel Drive Automatic 185k miles
Hi. I have a '93 Cadillac Eldorado base model, with the 4.9L engine. '93 was also the first year that the 4.6L Northstar V8 was introduced to the Eldorado.
I'm having a few problems after I purchased the car from a neighbor recently.
The car has some kind of parasitic drain on the battery. I was aware of this before I bought the car. The previous owner would hook a battery charger to it if the car wasn't to be driven everyday, but if driven daily, it was fine. I had the alternator checked while the engine was running, and off the engine at 2 different parts houses. It always showed GOOD.
I had the battery tested. It shows GOOD.
But the battery will be dead in less than 2 days, or just not powerful enough to crank the engine.
So, I throw a charger on it for an hour or so at 50 amps, the engine starts right up. I begin to back out of the driveway, the engine dies. Then it shows a message on the Driver Information Center."Battery No Charge", while the engine cranks over very fast but the engine won't fire up? I'm stumped.
I've also changed the PCM twice. The first time was because I just wanted to. The second time was because I thought the parts house gave me the wrong one. Now, the car still does the same thing showing the same messages."Battery No Charge" when the battery is fully charged. When that message isn't displayed, the engine starts right up.
Could I have a bad mem-cal? I used the original one when I bought the 2 computers. It's intended to be re-used if replacing the PCM. Correct?
I just need to figure this thing out. It's a great runner and driver when it actually feels like starting. Lol. Thanks for any help or advice. Lincolndude
have the same problem?
Tuesday, July 29th, 2008 AT 7:59 AM