Question about 1999 Ford Windstar
If there is an alarm that sounding 24 hrs a day, yes, it can drain your battery.
I can't go by what somebody else said or didn't say. I can't go by what was or wasn't replaced. If you replace a component and the wiring circuit is faulty, it still won't work, even if the part is new. By the way, I'm not a fan of rebuilt parts. If you want to do some testing, I will try to help, but, you have to do the testing. Use a digital multimeter across battery posts, if you don't have one, get one. With the meter on, engine off, place leads across battery posts, The generic spec for a full charge is 12.6 volts, if battery is down, get it charged or we're just spinning our wheels. Usually the digital multimeter has a 10 amp setting, where you can check battery amp draw with everything off, On that setting you use the meter in series with one of your battery cables, engine off. A generic amp draw spec is around 50 ma, that is .050 not even a tenth of an amp. If the reading is very high, check for lights left on, interior--under the hood, where ever. Best time to check is in the dark. If that is ok, pull/replace fuses one at a time, when you pull the fuse on problem circuit, the drain returns to normal. Then you check everything on that fuse circuit to find the problem. If you want to check charging system, begin by checking for charging system trouble codes. Some of the national brand auto stores will check codes for free, if there are any. I don't know if they will check manufacturer specific codes? You can get an obd2 code reader. Your computer has control over charging system. Also, you can see fuses and fusible links. Check the basics before worrying about the pcm. Just my opinion.
Posted on Mar 16, 2017
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Posted on Jan 02, 2017
May I suggest that you drive your car to one of the major auto stores and they can and will check your alternator for you to make sure it is good/bad.These places like AutoZone do this all the time. They do not charge for the check out. (Of course they are hoping that if you need a part you will buy it from them.
One other suggestion. If you do need a new alternator, get a rebuilt one. It is cheaper and most always comes with a warranty.
Hope this helps Good luck Loringh PS please take a moment to give me a rating
Posted on Nov 09, 2008
Hi, I can't tell you exactly what is wrong because there is too much involved at this point, what with 2 shops working with it, but I can give you some advise on what else to check. On the alternators and the wiring that supports them a small volt charge is taken off one of the slip rings, where the brushes ride, for the purpose of turning out the light. As I remember, this is a yellow wire that runs back to the dash.
To the alternator, it would be one of the wires that plug into the side of the alternator case.
Posted on Nov 27, 2008
i think under the hood in the fuse box there is a alt. fuse. it maybe a little 30 amp/green fuse. try that first. the older one used this.
Posted on Aug 12, 2009
It could mean the alternator has gone bad already... with the car off, the battery leads should read 11-12V.. with the car on, the battery should read 13-14V.. if it's lower then it's not charging your battery and if it's higher, it's damaging your battery....
Posted on Aug 12, 2009
Testimonial: "thanks so much for your advice...will have this checked into :)"
you have a voltage drop.fine the damaged wire going fro mthe positive terminal of your battery to your alternator.fix this or it will keep working the alternator and draining your battery.
Posted on Oct 04, 2009
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