I work at a chevy dealer in Phoenix. There has been a problem for many
years with Delco side terminal batteries lealing from the pos term. they
cant seem to fix the problem. We do many a day, even on 03 and 04 models
already. Even Chevy is starting to go back to top post batteries. Try
another brand of battery . We recommend Optima batteries. They cannot leak
because the acid is suspended in pad inside. Good luck. Scott
Indeed seems to be a common problem with the Delco's of the last few
years ... just had to replace a leaker in an 00 Grand Prix, and there
have been numerous posts about same on the GM truck forums
As everyone indicated, its common.
The root cause is the lead washer between the two terminals. This washer
compreses and causes the bolt to bottom out and break into
Someone out there has a web site with details for a fix. Basically removing the
lead washer and replacing it with a brass one. (
works great ;D)
Question: Has GM corrected this problem with their cable sets? I've just
replaced the original ('96) positive side cables and don't know if I
should do mod on them or not.
Martin Riddle wrote:
I don't know if this is true or not. I have a 3 1/2 year old Delco 75a72
battery that just sprung a
leak at the positive terminal..... Battery acid everywhere......... I haven't
touched this battery
or cables since I installed it. I was servicing the vehicle 2 weels ago and
all was well, 3 days
ago I see acid stains all over the frame rail, open the hood and theres all
kinds of shit all over
the positive terminal, running right down the battery aqnd all over the
tray...... Last GM battery
I ever buy..................
I don't know if it will help any of you but I've gone as far as securing the
positive and negative cables with heavy duty nylon ties against the
frame/fender inside the engine compartments of our trucks to keep the cables
from pulling down on the side terminals of the dual battery setups as we
bounce around the place.
washer compreses and causes the bolt to bottom out and break into
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