V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Battery light

Old 07-29-2011, 12:52 AM
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tvmustang
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Default Battery light

My car is a 2004. The problem that I'm having is when I accelerate the battery light turns on on the dash. The battery is less than a year old. And reads just over 13 volts with a multi-meter. Unless it's something else I think that it's the alternator. I know that i can just take it into a autoparts store to get it tested for free. I just wanted to know if anyone else had this problem or had any other ideas first.
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Old 07-29-2011, 01:17 AM
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torchred02
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my battery light turned on today actually. take it to my mechanic right away to get checked and he confirmed that my alternator is bad
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Old 07-29-2011, 01:19 AM
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tvmustang
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Well I'm 16 years old and I rebuilt the engine in mine, and removed the transmission and had it rebuilt. The vacuum modulator is a small brass bell shaped part on the passenger side of the car attached to the transmission case. Here is what one actually looks like http://search.yahoo.com/mobile/s?rew...id&slider=open Then the transmission fluid. You will need type F transmission fluid. This type is needed because back in those days machining wasn't that great. Type F transmission fluid is basically gear oil to prevent wear on rough machined surfaces with imperfections. You will also need a gasket for the pan and you might as well change the filter. The filter you will find when you remove the pan. There is a certain way to get the fluid out with out spilling it every where. You loosen the bolts on the pan about 1/4" break the pan loose and let the fluid drain some into a pan. Then you take it off the rest of the way and poor out the fluid. Once you have the pan back on with the new gasket. You poor 3 quarts of fluid in through the dipstick, then you start it up, shut it off and then add 3-5 more quarts. If you try to put it all in at once it will try to blow out. I hoped that this helped.
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Old 07-29-2011, 01:24 AM
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Disregard my previous post about a transmissions. I put it up on the wrong tab. What I need help with is suggestions about the battery light.
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Old 07-29-2011, 02:25 AM
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Daehawk
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haha I was wondering what that was after about 3 sentences.
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