Question:
'92 Chevy Silverado battery smoking?
anonymous
2009-09-19 13:29:45 UTC
Was about to leave for work a few days ago, and when starting the truck, The battery started to spark and white smoke came out. After work I came back and the truck was completely dead. Found out it was a blown fuse and changed it. When trying to reconnect the negative node to the battery started to smoke and spark again. Would it be grounded wrong, or is there something I'm missing?

If it helps, it had been raining heavily all week but I can't see that as relevant.
Six answers:
Two Smoking Guns
2009-09-19 13:35:19 UTC
Things sometimes give you a warning before the sh!t really hits the fan, your battery smoking is saying REPLACE ME

BEFORE I BURN YOUR TRUCK TO THE GROUND.
JetMech
2009-09-19 14:49:23 UTC
Two Smoking Guns is exactly correct, replace it without attempting to reconnect it again. Car batteries can explode if they have a short circuit. One other possible cause for your battery to smoke could be if some piece of metal fell across a connection somewhere and is shorting the battery to ground....especially at the starter connection. You want to be sure and determine that it is not the case before connecting a new battery and blowing IT up.



I once dropped a screw driver on the starter and the entire engine compartment wiring started to smoke. The screw driver had welded itself across the starter connection and was almost impossible to remove. I had to run and get a pair of insulated channel locks to rip the screw driver off of the starter connection where it had become welded to. The battery exploded and all the wiring got a little melted....but after replacing the battery and the fusible link, everything worked again....and luckily I wasn't near it when all that battery acid blew out of the Battery. Bottom line, if some sort of odd short circuit isn't your answer, then replace that battery.
automechtech
2009-09-19 14:29:59 UTC
Remove the Negative cable then the Positive, take the hold down bracket off the battery. Then remove the battery clean the terminal or posts take it to Auto Zone and have it checked and charged for free. Also check the cable ends for corrosion or bad ground, even the starter if it got shorted or drive got damaged and locked up will draw lots of current and could of caused the battery to overload and caused the problem. If the battery checked out ok Install it back. First Connect the pos. then neg. GM autos were really bad about the positive side post cable corroding and doing this problem . Good luck
anonymous
2016-05-21 06:18:19 UTC
It is the valve seals . They can be replaced with the motor still in truck .First you will need access to an air compressor Then go by a NAPA Auto Parts store and get the kit for compressing the valve springs . It may come in 2 parts , the spring compressor and a air hold kit . Compressor is a long flat bar looking thing that curves at the bottom . The air hold kit is used by removing spark plug and screwing this in and then connecting the air compressor . This is done to keep the valve from dropping down when you remove the valve spring . The bad part of this is that rocker arms also will have to be taken off one by one . A good idea when doing this job is to get new rocker arm nuts . They are not expensive and will stop a potential later problem . I have done this myself more than once . It is not a hard job , just a little tedious .
Knarf
2009-09-19 13:50:38 UTC
Battery is shorting somewhere to the frame with moisture (hint-rain). Check after the fuse as it was blown.When it dries out, problem will probably disappear, but you need to find out where the short is or it will smoke a new battery and your vehicle may end up on fire!.
bandit_60
2009-09-19 13:42:17 UTC
the battery has a short in it. just watch your face working around it.


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