So why the hell did battery acid spray everything under my hood?

White91TalonTsi · Aug 14, 2007

Sup guys, I justr put in a BRAND new battery today and terminals and has replaced my alternator about a month ago.

I drove the car around today on a hot day for about 2 hours applying for jobs so it was alot of driving..and it ran just fine. I park the car at my house and pop the hood to let it cool down a bit faster and I notice...WTF this cap from my battery is completely blown off and there is acid sprayed all over the top of the hood (Not a stupid amount but you can see where it ate the paint).

*This isnt my actual battery but one of those caps that say "danger poison etc" was blown off and I found it in the engine bay.

I have no clue how long I was driving it liek this BUT WHAT THE HELL IS GOING ON HERE!, car was running fine and had no voltage issues going on. I did notice my windows were rolling up extra fast

, but AHHH What the hell.

I wiped up most of the acid with somewater and there is minimal damage but still help!!

djmixerx · Aug 14, 2007

baking soda and water will take it out. I dont think only water will kill the acid. Damn you have some bad luck with yours DSM's.

Red1991TSI · Aug 14, 2007

If your alt is overcharging the battery, that can make it boil over.

DROOPY209 · Aug 14, 2007

My alternator was overcharging my Optima red top, at 17 volts.

The SEALED Optima red top starting spraying out acid from where the grey plastic meets the red plastic....it discolored some paint right by the battery.

You might wanna get a voltage test.

White91TalonTsi · Aug 14, 2007

What would cause overcharging exactly?

Sean485 · Aug 14, 2007

Faulty voltage regulator. Requires replacement/rebuild of the alternator.

AWD92TalonTSi · Aug 15, 2007

Sean485 said:
Faulty voltage regulator. Requires replacement/rebuild of the alternator.

Yea either check voltage at the battery while you rev. My old Probe had the regulator go bad and it had a volt meter on the dash. At anything less than 3k rpm it would read normal. After that it would go up to 18v, then things started turning off; the radio, the dash lights. Once you would bring the revs back down everything would come back on. (Oh yea, wear safety glasses and a long sleeve shirt while you do this, just in case it blows again

)

Or take the alt. out and go to the 'Zone and get 'er tested.

Bryan

bsmart82 · Aug 15, 2007

There is a good posibility that your alternator is over charging. I once saw a VW Jetta that was over charging and the battery semi-exploded and covered the engine bay with acid. I also had a Merc Grand Marquis that was over charging that fried the ecu, ip cluster, and the radio. I would get the alt tested for correct output, voltage and amperage.

White91TalonTsi · Aug 15, 2007

Ya this is weird stuff, I dont want another car to melt down

burnnxs · Aug 15, 2007

If i was you i would take some 4ga wire and rewire the alternator while your at it .

White91TalonTsi · Aug 15, 2007

Okay I just turned it on and in less than a minute I witnessed the other cap BLOW off and liek shot itself out of the engine bay. Im going to go get a multimeter..FUCKKKK

HOT97ECLIPSEGSX · Aug 15, 2007

That was a mistake. If it was already spraying acid everywhere, why did you turn the car on?

AWD92TalonTSi · Aug 15, 2007

White91TalonTsi said:
Okay I just turned it on and in less than a minute I witnessed the other cap BLOW off and liek shot itself out of the engine bay. Im going to go get a multimeter..FUCKKKK

step 1. pull alternator
step 2. have it tested
step 3. buy new alternator or battery.

oldman · Aug 15, 2007

HOT97ECLIPSEGSX said:
That was a mistake. If it was already spraying acid everywhere, why did you turn the car on?

He was just double checking and being extra cautious.

White91TalonTsi · Aug 16, 2007

Fucking Fuck now I dont have a car to drive around again

Ill pull it off tomorrow and see if my mom can drive to get it tested

, I just got a new alternator and battery so FUCK FUCK dizz you let me down!

:wall:

DSMLIFESTYLE · Aug 16, 2007

Dude with all this money spent Dizzum's you could have just bought my car for $5000

burnnxs · Aug 16, 2007

I dont get why you sound so angry over something very common on this cars?
The first time my alt took a dump on me i had a 1200w sony explode with no cap so i figure it was normal and installed a rebuild one from a friend. six months after, It went bad again , So this time i get a new battery along with a alt from the junk yard that tested good . Sure thing after four months goes bad. Again ,A new battery and a "new" rebuild alt and only after 2k of driving it fried!,Althought this last time im using a o2 housing eliminator dp from dejon and it is a tight fit .
Now a new ecu, rebuild alt rewired it with 4ga wire pos+ and neg-, And build a heat shield, because i dont have enought money for a relocation kit. So far so good

RippinGSX · Aug 16, 2007

Disconnect the alt and drive on the battery for a day or so. My Optima lasted at least a week before it wouldn't start the car anymore when my alt was dead and I was waiting for a new one. Just make sure you charge the battery at night and don't use any uneeded accessories.

Red1991TSI · Aug 16, 2007

Talk about limp mode. I certainly wouldn't take it very far from home.

RippinGSX · Aug 16, 2007

Red1991TSI said:
Talk about limp mode. I certainly wouldn't take it very far from home.

I drove around for three days on just the battery not using anything I didn't need to.

So why the hell did battery acid spray everything under my hood?

White91TalonTsi

djmixerx

Red1991TSI

DROOPY209

White91TalonTsi

Sean485

AWD92TalonTSi

bsmart82

White91TalonTsi

burnnxs

White91TalonTsi

HOT97ECLIPSEGSX

AWD92TalonTSi

oldman

White91TalonTsi

DSMLIFESTYLE

burnnxs

RippinGSX

Red1991TSI

RippinGSX

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