It's In the Shop

[audiobahnuser18 5,000+ posts]

Well guy's im totally lost i've upgraded to a H.O. alternator, Did the BIG 3 , Good battery. yet when my car is off it's losing voltage somehow i went to go start my car again this morning and it was dead no clicking just dead. but when you jump it does fine except for the slight bit of headlight dimming but that's normal. but please im lost it's at the shop now hopefully they find what's up with it but idk anymore its a 89 lincoln MARK VII please if any tip's or anything let me know.

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[PhatTonyDeMarco 5,000+ posts]

Obviously something is remaining on after your shut the vehicle off.

Have you checked the amplifiers or other stereo accessories for power with the ignition off?

Upgrading your alternator and doing the big three won't help anything if something is draining power with the vehicle off.

And the reason for the dimming is because the battery is dead...duh.

 

[audiobahnuser18 5,000+ posts]

Battery can't be dead it's only a couple day's old. and i checked that already man as far as amplifier power goes and light's etc......nothing is on and all:crap:

 

[jdawg 5,000+ posts]

shoulda checked for parasitic draw before sending it to a shop and wasting money

did a quick search for some sites so you understand what I mean, btw this is what they more than likley are going to do also

http://www.wikihow.com/Find-a-Parasitic-Battery-Drain

http://www.shadetreemechanic.com/tsp_electricity_102.htm

http://www.inliners.org/tech/tech6.html

 

[audiobahnuser18 5,000+ posts]

Well the mechanic is like a local mechanic around here really good friend of our's half of the time is really really cheap......but thanks for the links man i will read up for sure.

 

[jdawg 5,000+ posts]

no prob, could very well be not related to your audio system at all.

 

[PhatTonyDeMarco 5,000+ posts]

Battery can't be dead it's only a couple day's old. and i checked that already man as far as amplifier power goes and light's etc......nothing is on and all:crap:

//content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif If you are having to jump the car, then the battery is dead...

Something is remaining on, and draining power, or you have a bad battery. If it is new, then something is constantly draining power.

You seem to be a moron...

 

[audiobahnuser18 5,000+ posts]

hey phattony you think i don't know this. and the battery isn't dead dumb A$$ it's just losing charge when it's sit either that or something is just draining it and you can't psycally see it .

 

[audiobahnuser18 5,000+ posts]

Yeah ThX Jdawg i don't think it is because it would actually do this sometime before i even put my system in my car then it stopped but now it's just bad .

 

[jdawg 5,000+ posts]

I chased on on my dads truck for like a year. It was intermittent. It would come and go. Finally I caught it, ended up being the PCM.

 

[MA$E 10+ year member]

I GOT THE SAME PROBLEM! but i know i left nothin on, and my battery is pretty brand new, its a 14v batt, so i never expected it to die like it did, the only thing that was on was the LED light on my bass knob.

 

[jdawg 5,000+ posts]

follow the steps to see if you have any parasitic draw

 

[shovelhd 10+ year member]

I GOT THE SAME PROBLEM! but i know i left nothin on, and my battery is pretty brand new, its a 14v batt, so i never expected it to die like it did, the only thing that was on was the LED light on my bass knob.

Umm, the light is powered by the amp...

 

[MA$E 10+ year member]

Umm, the light is powered by the amp...

um no its not. there is no power supply that runs to the amp, i have a wire the connect directly to the batter and a seperate ground just for the bass knob.

 

[jdawg 5,000+ posts]

Umm, the light is powered by the amp...

sometimes the light may stay on after the key is off for a minute or so then slowly fade out, but make sure your amp is going off when the key is turned off