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OEM Battery leakage

Larry

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Larry Enthusiast

Larry

Posted
Posted

Keep your eyes peeled on your OEM AC Delco battery for leakage. My 2001 Silverado’s OEM battery pucked acid all over and ruined the battery tray and positive battery cable. The acid also started to eat at the corrugated split loom harness from the UBEC to the PCM as well. Good thing I noticed the mess before the acid started to eat the actual wiring to the PCM….That could have been an electrical/ driveablity nightmare.

 

I replaced the battery tray and positive battery cable with GM SPO parts as well as a new NAPA (Exide) battery. Probably could have repainted the tray and scabbed the cable back together but I was a bit apprehensive about the cable since it also is the main power supply to the sensitive UBEC.

 

Just can't have this kind of stuff happening to my 2001 cream puff garage queen '01 Silverado!

 

Oh, yeah….3 weeks ago a failed crank position sensor sent this rig to the dealer on a flat bed from a nice restaurant while entertaining customers. A bit embarrassing but at least the crank sensors are covered by the 5/50 emissions warranty.

 

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kosb Enthusiast

kosb

Posted
Posted

I had the same problem with my truck about a year ago, also an 01". I had to replace the battery and the tray but not the cable. I've read some where that the bolts in the connection end of the cable were to long so when you tighten them they crack the battery case. I'm not sure if that was true or if I just got a bad battery. I replaced it with an Optima and I havent had any problems so far...

I guess it could of been a number of things since the truck was five years old at the time and had about 85k.

Maybe its just a coincedence.

KICK Enthusiast

KICK

Posted
Posted
Keep your eyes peeled on your OEM AC Delco battery for leakage.  My 2001 Silverado’s OEM battery pucked acid all over and ruined the battery tray and positive battery cable.  The acid also started to eat at the corrugated split loom harness from the UBEC to the PCM as well.  Good thing I noticed the mess before the acid started to eat the actual wiring to the PCM….That could have been an electrical/ driveablity nightmare. 

 

I replaced the battery tray and positive battery cable with GM SPO parts as well as a new NAPA (Exide) battery.  Probably could have repainted the tray and scabbed the cable back together but I was a bit apprehensive about the cable since it also is the main power supply to the sensitive UBEC. 

 

Just can't have this kind of stuff happening to my 2001 cream puff garage queen '01 Silverado!

 

 

 

 

 

 

to me, it looks like the cable's insulation cracked off, possibly due to heat and not the electrlyte weeping down the cable. If you notice, the copper inside the cable is not corroded. Rubber isn't really harmed by acid, at least not as fast as soft metals like acid.

 

You could have cleaned up the tray and repainted it, it looks rough from the acid but I dont see any holes in it.

 

yeah, side post batts leak at the terminals. if it was original battery you did good getting 5 years out of it.

 

 

either way, its fixed.

Larry Enthusiast

Larry

Posted
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Posted

It is not corroded on the outside of the copper because I already soaked it in baking soda before pronouncing the cable dead.

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