Question about 1990 Mercury Grand Marquis

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I have a 1998 Ford Escort. Replaced the altenator twice already and the Wal-Mart Battery three the car died... first the Radio would shut off and then the A/C wouldn't blow as hard as it was before, until the car was actually in motion...Does anyone know if it can just be a relay or a fuse? We really cant afford to buy another altenator or do any work on this car at the know as they say FORD stands for Found On Road Dead or Flipped Over Road Device.. either way Ford's are POS's... it only has 100,000 Thank You

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  • cy schousboe May 11, 2010

    If you charge up the battery does the car work again, or not? If it does then you need to check to make sure your alternator is putting out enough juice, about 13.5 volts on a voltmeter. Check it at the alternator. Then check it at the battery to see if it reads the same. It probably won't. First make sure all connectors are clean. Use a piece of emery cloth, steel wool or fine sandpaper and clean all your contacts up and make sure they are tight. Also do the battery cables,especially at the battery. Also vheck your wire ends for looseness or frayed wire. Replace any that aren't good. You may have to replace the main wire that runs from the alternator to the battery, it could easily be the problem,if your car works after you charge up the battery. It's extremely unlikely you would get that many bad parts in a row. Hope this helps.



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Here are a few things to try. I had an Escort which would squeel the belt when first started as the alternator was trying to recharge the battery from the start. There are a couple of wire terminals behind the alternator. The red ones are positives and you don't want them. But there was an extra terminal on my alternator for a small braided bare wire. It was missing and was suppose to ground to the motor. After I added it everything worked.
Take it to an autoparts store like Autozone or O'Reillys and have them test your starter drain while cranking the engine. They should be able to test the solenoid too. If you are coming out to a dead battery try taking out the fuse to the rear window defroster. It was one of my GHOSTS that would kill my battery on a hit or miss basis.

Posted on Jul 02, 2009


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