battery noises

[68_250]

I noticed yesterday when the engine on my 71 is running and every thing is warmed up my Batt. is making hissing and bubbling noies comming from the caps. It only dose this when the engine has been running. Dosnt do it when cold. The batt. is only about a year old. Whats gonig on here.
The side dont apper to be bulging. It is a die hard 875 CCA.

[91Bear]

Overcharging? Whatever it is, it's not good!

[eggman918]

Overcharging? Whatever it is, it's not good!

voltage regulator maybe

[fordman]

i think it is probably th regulator letting the alt overcharge the battery.

[68_250]

Thanks guys.
The PO put an aftermaket volt gauge in the dash because this truck is wired for a cabover camper
( which came with the truck.)
How do I remedy the overcharging? And is this somthing that is going to ruin things if I dont take care of it soon. I dont drive this truck very ofeten but I am taking it camping next weekend.

Thanks

[Heathcliff68f100]

You might want to hurry up and replace the regulator before you go on that trip, if anything it could overcharge the battery, and cause it to explode. idont know about you, but i no like big boom near my truck =\

[68_250]

You might want to hurry up and replace the regulator before you go on that trip, if anything it could overcharge the battery, and cause it to explode. idont know about you, but i no like big boom near my truck =\

I will get it done.
I dont drive this one that often so it can wait until next week .I just wont drive it until then.

Thanks

[oldschoolrods]

It definitely sounds like an over-charge. Battery explosions are no joke, use extreme caution, after you resolve the charge problem, if your battery is the sealed type - replace it. If is the type that can be filled at the very least make sure its filled, I'd still consider replacement because when batteries run out of water they like to go poof. I posted these before but here is an example of what happens from a battery being run out of water, then tried to be used





Good luck and be stay safe

[Heathcliff68f100]

It definitely sounds like an over-charge. Battery explosions are no joke, use extreme caution, after you resolve the charge problem, if your battery is the sealed type - replace it. If is the type that can be filled at the very least make sure its filled, I'd still consider replacement because when batteries run out of water they like to go poof. I posted these before but here is an example of what happens from a battery being run out of water, then tried to be used





Good luck and be stay safe

Your right, its no joke but, its pretty cool to see what a simple build up of hydrogen and oxygen in the same place can do,

[68_250]

Issue resolved

[68_250]

I went on my trip this past weekend all the while thinking the issue had been resolved. When I got home yesterday the battery started making sounds again like it was overcharging. In the PO service records it shows that he replaced the voltage regulator several times but never the alternator. How do I fix this? Is a new alternator needed? I want to get this fixed and dont know where to start.

Also the the aftermarket voltage meter reads at 14 while running. I thought that was where it should be. Am I wrong?

[Thunderfoot]

That is the correct voltage, it should be between 13.5-14.5 so you're right there... Some of this is normal especially after a long run like that, as the battery is being charged it will produce gasses, this is why you should periodically check the fluid level in the battery. But if you want to be certain everything is working right I would take the truck down to Sears or most any parts start and have them put there charging analyzer on there and check it out, it should check the condition of the battery, alternator, and voltage regulator all on the vehicle. Most parts stores will do it for free.

[ToughOldFord]

Some is normal, but if your battery starts 'sweating' and/or bulging you have a problem.
A friend of mine had one blow in a Datsun 1600 pickup (remember those?) and it was like a small bomb under the hood. What a mess too.

[knightfire83]

If you can hear the noise over a running engine, that is a pretty loud battery. I've only barely heard a battery bubble on a battery charger in a dead quiet garage with the cell caps off.

Better keep an eye on the electrolyte level if it's bubbling off that much gas. But don't open the caps when its hissing, it could blow acid out like a shook up can of soda. Once the cells go empty it will also go boom.

I'd be very careful around that particular battery, something ante right. An acid shower would be a very bad thing while your working under the hood.

I've looked around the internet about your problem, people say that the battery could be arching internally or be shorting out between the plates. This is especially true if the battery continues to bubble and hiss after the truck is shut off. Off gassing should only occur when a current is flowing thru the battery.

The diodes in your alternator could be bad or going out also, sending AC current to the battery.

The battery is about a year old you say? Perhaps you should talk to the place you bought it from and see what they think. It should still be under warranty.

After the battery is cold and not hissing, you can swap another battery in the truck to see if the problem goes away.